1
|
Wang R, Chen D, Fang L, Fan W, You Q, Bian G, Zhou Y, Gu W, Wang C, Bai L, Li J, Deng H, Liao L, Yang J, Wu Z. Atomically Precise Nanometer-Sized Pt Catalysts with an Additional Photothermy Functionality. Angew Chem Int Ed Engl 2024:e202402565. [PMID: 38588114 DOI: 10.1002/anie.202402565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Atomically precise ~1-nm Pt nanoparticles (nanoclusters, NCs) with ambient stability are important in fundamental research and exhibit diverse practical applications (catalysis, biomedicine, etc.). However, synthesizing such materials is challenging. Herein, by employing the mixture ligand protecting strategy, we successfully synthesized the largest organic-ligand-protected (~1-nm) Pt23 NCs precisely characterized with mass spectrometry and single-crystal X-ray diffraction analyses. Interestingly, natural population analysis and Bader charge calculation indicate an alternate, varying charge -layer distribution in the sandwich-like Pt23 NC kernel. Pt23 NCs can catalyze the oxygen reduction reaction under acidic conditions without requiring calcination and other treatments, and the resulting specific and mass activities without further treatment are sevenfold and eightfold higher than those observed for commercial Pt/C catalysts, respectively. Density functional theory and d-band center calculations interpret the high activity. Furthermore, Pt23 NCs exhibit a photothermal conversion efficiency of 68.4 % under 532-nm laser irradiation and can be used at least for six cycles, thus demonstrating great potential for practical applications.
Collapse
Grants
- 21925303, 21829501, 21771186, 22075290, 22075291, 22272179, 21222301, 21171170, and 21528303 Natural Science Foundation of China
- BJPY2019A02 CASHIPS Director's Fund
- MESO-23-A06 State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences
- 2020HSC-CIP005 and 2022HSC-CIP018 Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology
- 2021M703251 China Postdoctoral Science Foundation
- YZJJ-GGZX-2022-01 and YZJJ202306-TS HFIPS Director's Fund
Collapse
Affiliation(s)
- Runguo Wang
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Dong Chen
- State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Liang Fang
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Wentao Fan
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Qing You
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Guoqing Bian
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Yue Zhou
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Wanmiao Gu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Chengming Wang
- Instruments' Center for Physical Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Licheng Bai
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jin Li
- Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, P.R.China
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084, P.R.China
| | - Lingwen Liao
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhikun Wu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| |
Collapse
|
2
|
Tanase T, Nakamae K, Ura Y, Nakajima T. Aiming for dynamic behaviours of molecular metal chains. Dalton Trans 2023; 52:1147-1158. [PMID: 36453666 DOI: 10.1039/d2dt03442e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dynamical functions of molecular metal chains, that could be derived from unique physical and chemical properties coupled with self-assembly of metal chain components, have largely been unexplored, and this review paper focuses on the dynamic behaviours of Pd chains supported by linear tetraphosphines, meso- and rac-Ph2PCH2P(Ph)CH2P(Ph)CH2PPh2 recently reported, and the current development on fine-tuning of metal chains by introducing heterometal atoms, i.e. heterometallic molecular metal chains, that are considered as promising dynamical components in the next generation.
Collapse
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara 630-8506, Japan.
| | - Kanako Nakamae
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara 630-8506, Japan.
| | - Yasuyuki Ura
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara 630-8506, Japan.
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara 630-8506, Japan.
| |
Collapse
|
3
|
Tanase T, Nakamae K, Ura Y, Nakajima T. Fine tunable metal assemblies constrained by multidentate phosphine ligands. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
4
|
Tanase T, Fujisawa Y, Morita Y, Ura Y, Nakajima T. Tetranuclear Pd4, PtnPd4‐n (n = 1‐3), and Pt4 Chains Supported by rac‐ and meso‐Ph2PCH2P(Ph)N(Ar)P(Ph)CH2PPh2 Tuned by Changing N‐Substituents, P‐Configuration, and Terminal Ligands. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomoaki Tanase
- Nara Women's University Faculty of Science Kitauoya-nishi-machi 630-8506 Nara JAPAN
| | - Yoshimi Fujisawa
- Nara Joshi Daigaku Rigakubu Kagaku Seimei Kankyo Gakka Department of Chemistry JAPAN
| | - Yuka Morita
- Nara Joshi Daigaku Rigakubu Kagaku Seimei Kankyo Gakka Department of Chemistry JAPAN
| | - Yasuyuki Ura
- Nara Joshi Daigaku Rigakubu Kagaku Seimei Kankyo Gakka Department of Chemistry JAPAN
| | - Takayuki Nakajima
- Nara Joshi Daigaku Rigakubu Kagaku Seimei Kankyo Gakka Department of Chemistry JAPAN
| |
Collapse
|
5
|
Takamori A, Uemura K. Dimerization of Paramagnetic Trinuclear Complexes by Coordination Geometry Changes Showing Mixed Valency and Significant Antiferromagnetic Coupling through -Pt···Pt- Bonds. Inorg Chem 2022; 61:5762-5778. [PMID: 35380821 DOI: 10.1021/acs.inorgchem.1c03848] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Paramagnetic trinuclear complexes, trans-[Pt2M(piam)4(NH3)4](ClO4)x (t-M; piam = pivalamidate, M = Mn, Fe, Co, Ni, and Cu, x = 2 or 3), aligned as Pt-M-Pt were successfully synthesized and characterized. The dihedral angles between the Pt and M coordination planes in t-M are approximately parallel, showing straight metal-metal bonds with distances of approximately 2.6 Å. Except for t-Fe, the trinuclear complexes are dimerized with close contact (approximately 3.9 Å) between the end Pt atoms to form Pt-M-Pt···Pt-M-Pt alignments with high-spin M(+2) containing five (t-Mn), three (t-Co), two (t-Ni), and one (t-Cu) unpaired electrons localized on M atoms. Several physical measurements and calculations revealed that the dimerized structures were maintained in MeCN, where cyclic voltammograms for t-M exhibited two-step oxidation and reduction attributed to Pt-M(+2)-Pt···Pt-M(+2)-Pt ↔ Pt-M(+3)-Pt···Pt-M(+2)-Pt ↔ Pt-M(+3)-Pt···Pt-M(+3)-Pt via mixed-valent states. Magnetic susceptibility measurements for t-M showed antiferromagnetic interaction, t-Mn: J = -0.9 cm-1, t-Co: J = -3.5 cm-1, t-Ni: J = -7.3 cm-1, and t-Cu: J = 0.0 cm-1, between the two M centers with distances of 9.0 Å through Pt···Pt bonds.
Collapse
Affiliation(s)
- Atsushi Takamori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Kazuhiro Uemura
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| |
Collapse
|
6
|
Tanase T, Nakamae K, Miyano H, Ura Y, Kitagawa Y, Yada S, Yoshimura T, Nakajima T. Fine Tunable, Redox Active Octapalladium Chains Supported by Linear Tetraphosphines, Leading to Dynamically 1D Self-Assembled Coordination Polymers. Chemistry 2021; 27:12078-12103. [PMID: 34155699 DOI: 10.1002/chem.202101715] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Indexed: 12/16/2022]
Abstract
A series of the octapalladium chains supported by meso-Ph2 PCH2 P(Ph)CH2 P(Ph)CH2 PPh2 (meso-dpmppm) ligands, [Pd8 (meso-dpmppm)4 (L)2 ](BF4 )4 (L=none (1), solvents: CH3 CN (2 a), dmf (2 b), dmso (2 c), RN≡C: R=Xyl (3 a), Mes (3 b), Dip (3 c), t Bu (3 d), Cy (3 e), CH3 (CH2 )7 (3 f), CH3 (CH2 )11 (3 g), CH3 (CH2 )17 (3 h)) and [Pd8 (meso-dpmppm)4 (X)2 ](BF4 )2 (X=Cl (4 a), N3 (4 b), CN (4 c), SCN (4 d)), were synthesized by using 2 a as a stable good precursor, and characterized by spectroscopic (IR, 1 H and 31 P NMR, UV-vis-NIR, ESI-MS) measurements and X-ray crystallographic analyses (for 1, 2 a, b, 3 a, b, e, f, 4 a-d). On the basis of DFT calculations on the X-ray determined structure of 2 b ([2b-Pd8 ]4+ ) and the optimized models [Pd8 (meso-Ph2 PCH2 P(H)CH2 P(H)CH2 PH2 )4 (CH3 CN)2 ]4+ ([Pd8 Ph8 ]4+ ) and [Pd8 (meso-H2 PCH2 P(H)CH2 P(H)CH2 PH2 )4 (CH3 CN)2 ]4+ ([Pd8 H8 ]4+ ), with and without empirically calculating dispersion force stabilization energy (B3LYP-D3, B3LYP), the formation energy between the two Pd4 fragments is assumed to involve mainly noncovalent interactions (ca. -70 kcal/mol) with four sets of interligand C-H/π interactions and Pd⋅⋅⋅Pd metallophilic one, while electron shared covalent interactions are almost canceled out within the Pd8 chain. All the compounds isolated are stable in solution and exhibit characteristic absorption at ∼900 nm, which is assignable to a spin allowed HOMO to LUMO transition, and shows temperature dependent intensity change with variable absorption coefficients presumably due to coupling with some thermal vibrations. The structures and electronic states of the Pd8 chains are found finely tunable by varying the terminal capping ligands. In particular, theoretical calculations elucidated that the HOMO-LUMO energy gap is systematically related to the central Pd-Pd distance (2.7319(6)-2.7575(6) Å) by two ways with neutral ligands L (1, 2, 3) and with anionic ligands X (4), which are reflected on the NIR absorption energy of 867-954 nm. The isocyanide terminated Pd8 complexes (3) further reacted with excess of RNC (6 eq) to afford the Pd4 complexes, [Pd4 (meso-dpmppm)2 (RNC)2 ](BF4 )2 (13), and the cyclic voltammograms of 2 a (L=CH3 CN), 3, and 13 (R=Xyl, Mes, t Bu, Cy) demonstrated wide range redox behaviors from 2{Pd4 }4+ to 2{Pd4 }0 through 2{Pd4 }2+ ↔{Pd8 }4+ , {Pd8 }3+ , and {Pd8 }2+ strings. The oxidized complexes, [Pd4 (meso-dpmppm)2 (RNC)3 ](BF4 )4 (16), were characterized by X-ray analyses, and the two-electron reduced chain of [Pd8 (meso-dpmppm)4 ](BF4 )2 (7) was analyzed by spectroscopic and electrochemical techniques and DFT calculations. Reactions of 2 a with 1 equiv. of aromatic linear bisisocyanide (BI) in CH2 Cl2 deposited insoluble coordination polymers, {[Pd8 (meso-dpmppm)4 (BI)](BF4 )4 }n (5), and interestingly, they were soluble in acetonitrile, 31 P{1 H} and 1 H DOSY NMR spectra as well as SAXS curves suggesting that the coordination polymers may exist in acetonitrile as dynamically 1D self-assembled coordination polymers comprising ca. 50 units of the Pd8 rod averaged within the timescale.
Collapse
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| | - Kanako Nakamae
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| | - Haruka Miyano
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| | - Yasuyuki Ura
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, 560-8531, Toyonaka, Osaka, Japan
| | - Shiho Yada
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| | - Tomokazu Yoshimura
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, 630-8506, Nara, Japan
| |
Collapse
|
7
|
Uemura K, Yasuda E, Sugiyama Y. Improving the Solubility of Hexanuclear Heterometallic Extended Metal Atom Chain Compounds in Nonpolar Solvents by Introducing Alkyl Amine Moieties. ACS OMEGA 2021; 6:18487-18503. [PMID: 34308079 PMCID: PMC8296546 DOI: 10.1021/acsomega.1c02634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
The highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) interaction at the d z 2 orbital between two kinds of metal complex is useful for obtaining heterometallic one-dimensional (1D) chains as well as heterometallic metal string compounds (HMSCs). Platinum dinuclear complexes, [Pt2(piam)2(NH2R)4]X2 (piam = pivalamidate, R = CH3, C2H5, C3H7, or C4H9, X = anion), comprising σ* as HOMO were mixed with [Rh2(O2CCH3)4] comprising σ* as LUMO in solvents to afford single crystals of [{Rh2(O2CCH3)4}{Pt2(piam)2(NH2R)4}2]X4 (2-5). Single-crystal X-ray analyses revealed that 2-5 are hexanuclear complexes that are one-dimensionally aligned as Pt-Pt-Rh-Rh-Pt-Pt with metal-metal bonds, where the alkyl moieties at end Pt atoms obstruct further 1D extension. Complexes 2-5 appear as if they are cut off from an infinite chain [{Rh2(O2CCH3)4}{Pt2(piam)2(NH3)4}2] n (PF6)4n ·6nH2O (1) aligned as -{Pt-Pt-Rh-Rh-Pt-Pt} n -. The diffuse reflectance spectrum of 1 depicts broad shoulder bands, which are not present in the spectra of 2-5, proving that the infinite chain 1 forms a band structure. Compounds 4 and 5 with propyl or butyl moieties at amine ligands, respectively, are soluble in nonpolar solvents, such as CH2Cl2, without the dissociation of their hexanuclear structures. Taking advantage of their solubility, measurement of cyclic voltammetry in CH2Cl2 become possible, which shows the quasi-reversible oxidation and reduction waves at 4: E ox = 0.86 V and E red = 0.69 V and 5: E ox = 0.87 V and E red = 0.53 V.
Collapse
|
8
|
Braunstein P, Danopoulos AA. Transition Metal Chain Complexes Supported by Soft Donor Assembling Ligands. Chem Rev 2021; 121:7346-7397. [PMID: 34080835 DOI: 10.1021/acs.chemrev.0c01197] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The chemistry of discrete molecular chains constituted by metals in low oxidation states, displaying metal-metal proximity and stabilized by suitable metal-bridging, assembling ligands comprising at least one soft donor atom is comprehensively reviewed; complexes with a single (hard or soft) bridging atom (e.g., μ-halide, μ-sulfide, or μ-PR2 etc.) as well as "closed" metal arrays (that fall in the realm of cluster chemistry) are excluded. The focus is on transition metal-based systems, with few excursions to cases combining transition and post-transition elements. Most relevant supporting ligands have neutral C, P, O, or S donor (mainly, N-heterocyclic carbene, phosphine, ether, thioether) or anionic donor (mainly phenyl, ylide, silyl, phosphide, thiolate) groups. A supporting-ligand-based classification of the metal chains is introduced, using as the classifying parameter the number of "bites" (i.e., ligand bridges) subtending each intermetallic separation. The ligands are further grouped according to the number of donor atoms interacting with the metal chain (called denticity in the following) and the column of the Periodic Table to which the set of donor atoms belongs (in ascending order). A complementary metal-based compilation of the complexes discussed is also provided in a concise tabular form.
Collapse
Affiliation(s)
- Pierre Braunstein
- CNRS, Chimie UMR 7177, Laboratoire de Chimie de Coordination, Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France
| | - Andreas A Danopoulos
- Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| |
Collapse
|
9
|
Tanase T, Nakamae K, Hayashi S, Okue A, Otaki R, Nishida T, Ura Y, Kitagawa Y, Nakajima T. Chiral Octapalladium Chains Supported by Enantiopure P-Stereogenic Linear Tetraphosphines, (R,R)- and (S,S)-Ph2PCH2P(Ph)CH2P(Ph)CH2PPh2. Inorg Chem 2021; 60:3259-3273. [DOI: 10.1021/acs.inorgchem.0c03684] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Kanako Nakamae
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Suzui Hayashi
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Ayumi Okue
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Risa Otaki
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Tomoko Nishida
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Yasuyuki Ura
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| |
Collapse
|
10
|
Nakajima T, Tanase T. Transition Metal Clusters Constrained by Linear Tetradentate Phosphine Ligands. CHEM LETT 2020. [DOI: 10.1246/cl.200041] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| |
Collapse
|
11
|
Hooper TN, Lau S, Chen W, Brown RK, Garçon M, Luong K, Barrow NS, Tatton AS, Sackman GA, Richardson C, White AJP, Cooper RI, Edwards AJ, Casely IJ, Crimmin MR. The partial dehydrogenation of aluminium dihydrides. Chem Sci 2019; 10:8083-8093. [PMID: 31762968 PMCID: PMC6855256 DOI: 10.1039/c9sc02750e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/12/2019] [Indexed: 11/21/2022] Open
Abstract
The reactions of a series of β-diketiminate stabilised aluminium dihydrides with ruthenium bis(phosphine), palladium bis(phosphine) and palladium cyclopentadienyl complexes is reported.
The reactions of a series of β-diketiminate stabilised aluminium dihydrides with ruthenium bis(phosphine), palladium bis(phosphine) and palladium cyclopentadienyl complexes is reported. In the case of ruthenium, alane coordination occurs with no evidence for hydrogen loss resulting in the formation of ruthenium complexes with a pseudo–octahedral geometry and cis-relation of phosphine ligands. These new ruthenium complexes have been characterised by multinuclear and variable temperature NMR spectroscopy, IR spectroscopy and single crystal X-ray diffraction. In the case of palladium, a series of structural snapshots of alane dehydrogenation have been isolated and crystallographically characterised. Variation of the palladium precursor and ligand on aluminium allows kinetic control over reactivity and isolation of intermetallic complexes that contain new Pd–Al and Pd–Pd interactions. These complexes differ by the ratio of H : Al (2 : 1, 1.5 : 1 and 1 : 1) with lower hydride content species forming with dihydrogen loss. A combination of X-ray and neutron diffraction studies have been used to interrogate the structures and provide confidence in the assignment of the number and position of hydride ligands. 27Al MAS NMR spectroscopy and calculations (DFT, QTAIM) have been used to gain an understanding of the dehydrogenation processes. The latter provide evidence for dehydrogenation being accompanied by metal–metal bond formation and an increased negative charge on Al due to the covalency of the new metal–metal bonds. To the best of our knowledge, we present the first structural information for intermediate species in alane dehydrogenation including a rare neutron diffraction study of a palladium–aluminium hydride complex. Furthermore, as part of these studies we have obtained the first SS 27Al NMR data on an aluminium(i) complex. Our findings are relevant to hydrogen storage, materials chemistry and catalysis.
Collapse
Affiliation(s)
- Thomas N Hooper
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Samantha Lau
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Wenyi Chen
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Ryan K Brown
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Martí Garçon
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Karen Luong
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Nathan S Barrow
- Johnson Matthey Technology Centre , Blounts Court, Sonning Common , Reading , RG4 9NH , UK
| | - Andrew S Tatton
- Department of Materials , University of Oxford , OX1 3PH , UK
| | - George A Sackman
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organisation , Australia.,Chemical Crystallography , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK
| | | | - Andrew J P White
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Richard I Cooper
- Chemical Crystallography , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK
| | - Alison J Edwards
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organisation , Australia
| | - Ian J Casely
- Johnson Matthey Technology Centre , Blounts Court, Sonning Common , Reading , RG4 9NH , UK
| | - Mark R Crimmin
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| |
Collapse
|
12
|
Bailey WD, Phearman AS, Luconi L, Rossin A, Yakhvarov DG, D'Accolti L, Flowers SE, Kaminsky W, Kemp RA, Giambastiani G, Goldberg KI. Hydrogenolysis of Dinuclear PCN R Ligated Pd II μ-Hydroxides and Their Mononuclear Pd II Hydroxide Analogues. Chemistry 2019; 25:9920-9929. [PMID: 31090244 DOI: 10.1002/chem.201900507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/05/2019] [Indexed: 11/11/2022]
Abstract
The hydrogenolysis of mono- and dinuclear PdII hydroxides was investigated both experimentally and computationally. It was found that the dinuclear μ-hydroxide complexes {[(PCNR )Pd]2 (μ-OH)}(OTf) (PCNH =1-[3-[(di-tert-butylphosphino)methyl]phenyl]-1H-pyrazole; PCNMe =1-[3-[(di-tert-butylphosphino)methyl]phenyl]-5-methyl-1H-pyrazole) react with H2 to form the analogous dinuclear hydride species {[(PCNR )Pd]2 (μ-H)}(OTf). The dinuclear μ-hydride complexes were fully characterized, and are rare examples of structurally characterized unsupported singly bridged μ-H PdII dimers. The {[(PCNMe )Pd]2 (μ-OH)}(OTf) hydrogenolysis mechanism was investigated through experiments and computations. The hydrogenolysis of the mononuclear complex (PCNH )Pd-OH resulted in a mixed ligand dinuclear species [(PCNH )Pd](μ-H)[(PCC)Pd] (PCC=a dianionic version of PCNH bound through phosphorus P, aryl C, and pyrazole C atoms) generated from initial ligand "rollover" C-H activation. Further exposure to H2 yields the bisphosphine Pd0 complex Pd[(H)PCNH ]2 . When the ligand was protected at the pyrazole 5-position in the (PCNMe )Pd-OH complex, no hydride formed under the same conditions; the reaction proceeded directly to the bisphosphine Pd0 complex Pd[(H)PCNMe ]2 . Reaction mechanisms for the hydrogenolysis of the monomeric and dimeric hydroxides are proposed.
Collapse
Affiliation(s)
- Wilson D Bailey
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA
| | - Alexander S Phearman
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lapo Luconi
- Institute of Chemistry of Organometallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10-50019 Sesto Fiorentino, Florence, Italy
| | - Andrea Rossin
- Institute of Chemistry of Organometallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10-50019 Sesto Fiorentino, Florence, Italy
| | - Dmitry G Yakhvarov
- Kazan Federal University, 420008, Kazan, Russian Federation.,Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 420008, Kazan, Russian Federation
| | - Lucia D'Accolti
- Università di Bari "A. Moro", Via Orabona 4, 70126, Bari, Italy
| | - Sarah E Flowers
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA
| | - Richard A Kemp
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico, 87131, USA.,Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, New Mexico, 87106, USA
| | - Giuliano Giambastiani
- Institute of Chemistry of Organometallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10-50019 Sesto Fiorentino, Florence, Italy.,Kazan Federal University, 420008, Kazan, Russian Federation.,Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), UMR 7515 CNRS-University of Strasbourg (UdS), 25, rue Becquerel, 67087, Strasbourg Cedex 02, France
| | - Karen I Goldberg
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA.,Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| |
Collapse
|
13
|
Tanase T, Tanaka M, Hamada M, Morita Y, Nakamae K, Ura Y, Nakajima T. Alloyed Tetranuclear Metal Chains of Pd
4−
n
Pt
n
(
n=
0–3) Scaffolded by a New Linear Tetraphosphine Containing a PNP Bridge. Chemistry 2019; 25:8219-8224. [DOI: 10.1002/chem.201901701] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 01/31/2023]
Affiliation(s)
- Tomoaki Tanase
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Miho Tanaka
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Mami Hamada
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Yuka Morita
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Kanako Nakamae
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Yasuyuki Ura
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Takayuki Nakajima
- Department of ChemistryFaculty of ScienceNara Women's University, Kitauoya-nishi-machi Nara 630-8506 Japan
| |
Collapse
|
14
|
Nakajima T, Nakamae K, Hatano R, Imai K, Harada M, Ura Y, Tanase T. Tetra-, hexa- and octanuclear copper hydride complexes supported by tridentate phosphine ligands. Dalton Trans 2019; 48:12050-12059. [DOI: 10.1039/c9dt02467k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetra-, hexa-, and octanuclear copper hydride complexes were synthesized by using a triphosphine, Ph2PCH2P(Ph)CH2PPh2 (dpmp), and were characterized by X-ray crystallographic analyses and theoretical calculations.
Collapse
Affiliation(s)
- Takayuki Nakajima
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Nara 630-8506
- Japan
| | - Kanako Nakamae
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Nara 630-8506
- Japan
| | - Rika Hatano
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Nara 630-8506
- Japan
| | - Kaho Imai
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Nara 630-8506
- Japan
| | - Masafumi Harada
- Department of Health Science and Clothing Environment
- Faculty of Human Life and Environment
- Nara Women's University
- Nara 630-8506
- Japan
| | - Yasuyuki Ura
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Nara 630-8506
- Japan
| | - Tomoaki Tanase
- Department of Chemistry
- Faculty of Science
- Nara Women's University
- Nara 630-8506
- Japan
| |
Collapse
|
15
|
Uemura K. One-dimensional complexes extended by unbridged metal-metal bonds based on a HOMO-LUMO interaction at the d z2 orbital between platinum and heterometal atoms. Dalton Trans 2018; 46:5474-5492. [PMID: 28112315 DOI: 10.1039/c6dt04515d] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review, the crystal structures of seventeen heterometallic one-dimensional compounds 1-17 are shown, and their electronic structures are discussed based on the diffuse reflectance spectra and other physical measurements. Compounds 1-17 comprise two kinds of complexes with HOMO-LUMO interactions at σ-type (dz2) orbitals between platinum and heterometal atoms, where two or three kinds of metal are regularly aligned through metal-metal bonds. In [{PtRh(piam)2(NH3)2Cl2.5}2{Pt2(piam)2(NH3)4}2]n(PF6)6n·2nMeOH·2nH2O (3, piam = pivalamidate), the platinum and rhodium atoms are aligned as -Pt-Rh-Pt-Pt-Pt-Pt-Rh-Pt-Cl- with a mixed valence, where an unpaired electron hops from one Rh atom to another. [{Rh2(O2CCF3)4}{Pt2(piam)2(NH3)4}2]n(CF3CO2)4n·2nEtOH·2nH2O (6) with -Pt-Pt-Rh-Rh-Pt-Pt- alignment has a conduction band (CB) and a valence band (VB) attributed to σ-type orbitals, exhibiting narrower gaps between CB and VB than other analogues. [{Ru2(O2CCH3)4}{Pt2(piam)2(NH3)4}2]n(PF6)4n·4nH2O (14) with -Pt-Pt-Ru-Ru-Pt-Pt- and [{Rh2(O2CCH3)4}{Pt2Cu(piam)4(NH3)4}]n(PF6)2n (15) with -Rh-Rh-Pt-Cu-Pt- are paramagnetic chains, where one or two unpaired electrons reside at each metal per repeating unit. Thus, this system is diverse in modulating the electronic structures, band structures and the expected physical properties based on the unique oxidation states and redox properties attributed to the metal-metal interaction.
Collapse
Affiliation(s)
- Kazuhiro Uemura
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
| |
Collapse
|
16
|
Construction of a Planar Tetrapalladium Cluster by the Reaction of Palladium(0) Bis(isocyanide) with Cyclic Tetrasilane. INORGANICS 2017. [DOI: 10.3390/inorganics5040084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
17
|
Uemura K, Taoka M. Isolation and characterization of a tetranuclear Pt-FeFe-Pt intermediate en route to the trinuclear Pt-Fe-Pt cluster. Dalton Trans 2017; 46:14012-14020. [PMID: 28976522 DOI: 10.1039/c7dt02583a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An intermediate compound, [{PtFe(piam)2(NH3)2(OCH3)}2(μ-OCH3)2](ClO4)2 (1, piam = pivalamidate), in the synthetic process to form [Pt2Fe(piam)4(NH3)4](ClO4)3 (2) by mixing cis-[Pt(piam)2(NH3)2]·2H2O and iron sources was successfully isolated and characterized by single-crystal X-ray analysis. In 1, the platinum and iron atoms are bridged by two piam ligands to afford a dinuclear Pt-Fe structure and are further linked to each other by methoxide bridges at the equatorial positions of iron atoms to form a tetranuclear Pt-FeFe-Pt complex. The Pt-Fe distances in 1 are 3.0010(16) and 2.9883(17) Å, which are significantly longer than those in 2 (2.5566(15) and 2.5718(15) Å). X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and magnetic susceptibility measurements revealed that the oxidation states are Pt(+2)-Fe(+3)Fe(+3)-Pt(+2) (1) and Pt(+2)-Fe(+3)-Pt(+2) (2) with high-spin (S = 5/2) configurations in iron atoms. The magnetic susceptibility of 1 has a χT value of 5.83 cm3 mol-1 K per Pt(+2)-Fe(+3)Fe(+3)-Pt(+2) unit at 300 K, which decreases down to 0.04 cm3 mol-1 K at 7 K due to antiferromagnetic coupling (J = -28 cm-1) of the two Fe(+3) centers. Compound 2 maintains its trinuclear structure in MeCN, exhibiting reversible one-electron reduction and oxidation, Pt(+2)-Fe(+2)-Pt(+2) ↔ Pt(+2)-Fe(+3)-Pt(+2), at E1/2 = -0.19 V (vs. Fc/Fc+). However, in MeOH, compound 2 is decomposed into a dinuclear structure of Pt-Fe involving an equilibrium between 1 and 2.
Collapse
Affiliation(s)
- Kazuhiro Uemura
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
| | | |
Collapse
|
18
|
Tanase T, Yamamoto K, Hatano R, Nakamae K, Kure B, Ura Y, Nakajima T. Linear Triplatinum Tetrahydride Complex Supported by Triphosphine Ligands, [Pt3(µ-H)2(H)2(µ-dpmp)2](BF4)2{dpmp = bis(diphenylphosphinomethyl)phenylphosphine}. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601505] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| | - Kana Yamamoto
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| | - Rika Hatano
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| | - Kanako Nakamae
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| | - Bunsho Kure
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| | - Yasuyuki Ura
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| | - Takayuki Nakajima
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi 630-8506 Nara Japan
| |
Collapse
|
19
|
Tanabe M, Yumoto R, Yamada T, Fukuta T, Hoshino T, Osakada K, Tanase T. Planar PtPd 3 Complexes Stabilized by Three Bridging Silylene Ligands. Chemistry 2017; 23:1386-1392. [PMID: 27864855 DOI: 10.1002/chem.201604502] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Indexed: 11/09/2022]
Abstract
A heterobimetallic PtPd3 complex supported by three bridging diphenylsilylene ligands, [Pt{Pd(dmpe)}3 (μ3 -SiPh2 )3 ] (1, dmpe=1,2-bis(dimethylphosphino)ethane), has been synthesized from mononuclear Pd and Pt complexes. The hexagonal core composed of Pt, Pd, and Si atoms is slightly larger than that of the tetrapalladium complex, [Pd{Pd(dmpe)}3 (μ3 -SiPh2 )3 ] (2). Reaction of PhSiH3 with complex 1 in the presence and absence of Ph2 SiH2 results in the formation of a tetranuclear complex with silyl and hydride ligands at the Pt center, [PtH(SiPh2 H){Pd(dmpe)}3 (μ3 -SiHPh)3 ] (3), and an octanuclear complex, [{Pt{Pd(dmpe)}3 (μ3 -SiHPh)3 }2 (κ2 -dmpe)] (5), respectively. Both M-Si (M=Pt, Pd) bond lengths and the 29 Si NMR chemical shifts of 1 and 2 are located between those of mononuclear late transition-metal complexes with a silylene ligand and complexes with donor-stabilized silylene ligands. CuI and AgI adducts of 1 and 2, formulated as [M(μ-M'I){Pd(dmpe)}3 (μ3 -SiPh2 )3 ] (M=Pt, Pd; M'=Cu, Ag), undergo elimination of CuI (AgI) and regenerate the tetrametallic complexes upon heating or addition of a chelating diphosphine. Elimination of AgI from 2-AgI occurs more rapidly than elimination of CuI from 2-CuI, as determined from the results of kinetics experiments.
Collapse
Affiliation(s)
- Makoto Tanabe
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Ryouhei Yumoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Tetsuyuki Yamada
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Tomoko Fukuta
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Tsuyoshi Hoshino
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Kohtaro Osakada
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259-R1-3 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Woman's University, Kitauoya-higashi-machi, Nara, 630-8506, Japan
| |
Collapse
|
20
|
Tanase T, Morita K, Otaki R, Yamamoto K, Kaneko Y, Nakamae K, Kure B, Nakajima T. Chiral Self-Recognition between Stereogenic Tetrapalladium Units Affording Pd8
Chains Supported by Homochiral Tetraphosphines. Chemistry 2016; 23:524-528. [DOI: 10.1002/chem.201605146] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Konomi Morita
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Risa Otaki
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Kana Yamamoto
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Yukino Kaneko
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Kanako Nakamae
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Bunsho Kure
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| | - Takayuki Nakajima
- Department of Chemistry; Faculty of Science; Nara Women's University, Kitauoya-nishi-machi; Nara 630-8506 Japan
| |
Collapse
|
21
|
Tanase T, Yamamoto K, Nakamae K, Kure B, Nakajima T. Synthesis and structure of trihydride hexaplatinum complex supported by triphosphine ligands, [Pt6(μ-H)(H)2(μ-dpmp)4]BH4 (dpmp = bis(diphenylphosphino-methyl)phenylphosphine). J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.04.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
22
|
Tanase T, Koike K, Uegaki M, Hatada S, Nakamae K, Kure B, Ura Y, Nakajima T. Electron-rich linear triplatinum complexes stabilized by a spinning tetraphosphine, tris(diphenylphosphinomethyl)phosphine. Dalton Trans 2016; 45:7209-14. [PMID: 27054509 DOI: 10.1039/c6dt00624h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Linear triplatinum complexes with 48e(-), [Pt3(μ-tdpmp)2(RNC)2](PF6)2 (R = 2,6-xylyl (3), (t)Bu (4)), were synthesized by using a branched tetraphosphine, tris(diphenylphosphinomethyl)phosphine (tdpmp), and characterized by crystallographic and spectroscopic analyses to show their novel dynamic behaviour in the solution state, in which the linear Pt3 unit was stabilized by two spinning tetraphosphine ligands.
Collapse
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara 630-8506, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Fleischmann M, Dütsch L, Elsayed Moussa M, Balázs G, Kremer W, Lescop C, Scheer M. Self-Assembly of Reactive Linear Cu3 Building Blocks for Supramolecular Coordination Chemistry and Their Reactivity toward En Ligand Complexes. Inorg Chem 2016; 55:2840-54. [DOI: 10.1021/acs.inorgchem.5b02641] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Mehdi Elsayed Moussa
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS−Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France
| | | | | | - Christophe Lescop
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS−Université de Rennes 1, Campus de Beaulieu, F-35042 Rennes Cedex, France
| | | |
Collapse
|
24
|
Krämer C, Leingang S, Hübner O, Kaifer E, Wadepohl H, Himmel HJ. Construction of copper chains with new fluorescent guanidino-functionalized naphthyridine ligands. Dalton Trans 2016; 45:16966-16983. [DOI: 10.1039/c6dt03166h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A high charge and a low coordination number are the characteristics of fluorescent Cu4 chain complexes with 2,7-bisguanidino-naphthyridine ligands.
Collapse
Affiliation(s)
- Christoph Krämer
- Anorganisch-Chemisches Institut
- Ruprecht-Karls-Universität Heidelberg
- 69120 Heidelberg
- Germany
| | - Simone Leingang
- Anorganisch-Chemisches Institut
- Ruprecht-Karls-Universität Heidelberg
- 69120 Heidelberg
- Germany
| | - Olaf Hübner
- Anorganisch-Chemisches Institut
- Ruprecht-Karls-Universität Heidelberg
- 69120 Heidelberg
- Germany
| | - Elisabeth Kaifer
- Anorganisch-Chemisches Institut
- Ruprecht-Karls-Universität Heidelberg
- 69120 Heidelberg
- Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut
- Ruprecht-Karls-Universität Heidelberg
- 69120 Heidelberg
- Germany
| | - Hans-Jörg Himmel
- Anorganisch-Chemisches Institut
- Ruprecht-Karls-Universität Heidelberg
- 69120 Heidelberg
- Germany
| |
Collapse
|
25
|
Tanase T, Yoshii A, Otaki R, Nakamae K, Mikita Y, Kure B, Nakajima T. Synthesis and structures of dinuclear RhIII and IrIII complexes supported by a tetraphosphine, meso- or rac-bis{[(diphenylphosphinomethyl)phenyl]phosphino]}methane. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.07.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
26
|
Tanase T, Chikanishi M, Morita K, Nakamae K, Kure B, Nakajima T. Gold and Silver Chains Supported by Linear Hexaphosphine Ligands. Chem Asian J 2015; 10:2619-23. [DOI: 10.1002/asia.201500876] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Mio Chikanishi
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Konomi Morita
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Kanako Nakamae
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Bunsho Kure
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi Nara 630-8506 Japan
| | - Takayuki Nakajima
- Department of Chemistry; Faculty of Science; Nara Women's University; Kitauoya-nishi-machi Nara 630-8506 Japan
| |
Collapse
|
27
|
Tanase T, Hatada S, Noda S, Takenaka H, Nakamae K, Kure B, Nakajima T. Stepwise Expansion of Pd Chains from Binuclear Palladium(I) Complexes Supported by Tetraphosphine Ligands. Inorg Chem 2015; 54:8298-309. [PMID: 26266547 DOI: 10.1021/acs.inorgchem.5b00950] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of [Pd2(XylNC)6]X2 (X = PF6, BF4) with a linear tetraphosphine, meso-bis[(diphenylphosphinomethyl)phenylphosphino]methane (dpmppm), afforded binuclear Pd(I) complexes, [Pd2(μ-dpmppm)2]X2 ([2]X2), through an asymmetric dipalladium complex, [Pd2(μ-dpmppm)(XylNC)3](2+) ([1](2+)). Complex [2](2+) readily reacted with [Pd(0)(dba)2] (2 equiv) and an excess of isocyanide, RNC (R = 2,6-xylyl (Xyl), tert-butyl ((t)Bu)), to generate an equilibrium mixture of [Pd4(μ-dpmppm)2(RNC)2](2+) ([3'](2+)) + RNC ⇄ [Pd4(μ-dpmppm)2(RNC)3](2+) ([3](2+)), from which [Pd4(μ-dpmppm)2(XylNC)3](2+) ([3a](2+)) and [Pd4(μ-dpmppm)2((t)BuNC)2](2+) ([3b'](2+)) were isolated. Variable-temperature UV-vis and (31)P{(1)H} and (1)H NMR spectroscopic studies on the equilibrium mixtures demonstrated that the tetrapalladium complexes are quite fluxional in the solution state: the symmetric Pd4 complex [3b'](2+) predominantly existed at higher temperatures (>0 °C), and the equilibrium shifted to the asymmetric Pd4 complex [3b](2+) at a low temperature (∼-30 °C). The binding constants were determined by UV-vis titration at 20 °C and revealed that XylNC is of higher affinity to the Pd4 core than (t)BuNC. In addition, both isocyanides exhibited higher affinity to the electron deficient [Pd4(μ-dpmppmF2)2(RNC)2](2+) ([3F'](2+)) than to [Pd4(μ-dpmppm)2(RNC)2](2+) ([3'](2+)) (dpmppmF2 = meso-bis[{di(3,5-difluorophenyl)phosphinomethyl}phenylphosphino]methane). When [2]X2 was treated with [Pd(0)(dba)2] (2 equiv) in the absence of RNC in acetonitrile, linearly ordered octapalladium chains, [Pd8(μ-dpmppm)4(CH3CN)2]X4 ([4]X4: X = PF6, BF4), were generated through a coupling of two {Pd4(μ-dpmppm)2}(2+) fragments. Complex [2](2+) was also proven to be a good precursor for Pd2M2 mixed-metal complexes, yielding [Pd2Cl(Cp*MCl) (Cp*MCl2)(μ-dpmppm)2](2+) (M = Rh ([5](2+)), Ir ([6](2+)), and [Au2Pd2Cl2(dpmppm-H)2](2+) ([7](2+)) by treatment with [Cp*MCl2]2 and [AuCl(PPh3)], respectively. Complex [7](2+) contains an unprecedented PC(sp(3))P pincer ligand with a PCPCPCP backbone, dpmppm-H of deprotonated dpmppm. The present results demonstrated that the binuclear Pd(I) complex [2](2+) was a quite useful starting material to extend the palladium chains and to construct Pd-involved heteromultinuclear systems.
Collapse
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Satoko Hatada
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Sayo Noda
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Hiroe Takenaka
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Kanako Nakamae
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Bunsho Kure
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women's University , Kitauoya-nishi-machi, Nara, 630-8506, Japan
| |
Collapse
|
28
|
Fleischmann M, Dütsch L, Moussa ME, Schindler A, Balázs G, Lescop C, Scheer M. Organometallic polyphosphorus and -arsenic ligands as linkers between pre-assembled linear Cu(I) fragments. Chem Commun (Camb) 2015; 51:2893-5. [PMID: 25582612 DOI: 10.1039/c4cc09845e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and straightforward synthesis of a new linear trinuclear Cu(I) cluster with polyphosphine ligands is presented. The reaction of this pre-organized Cu3 precursor with En ligand complexes (E = P, As; n = 2, 5) affords discrete complexes exhibiting end-on η(1)-coordination of the E2 ligands or one-dimensional coordination polymers featuring σ-1,3-bridging E5 rings, respectively.
Collapse
Affiliation(s)
- Martin Fleischmann
- Institute of Inorganic Chemistry, University of Regensburg, D-93040 Regensburg, Germany.
| | | | | | | | | | | | | |
Collapse
|
29
|
Kämpfe A, Brendler E, Kroke E, Wagler J. Tp*Cu(I)-CN-SiL2-NC-Cu(I)Tp*--a hexacoordinate Si-complex as connector for redox active metals via π-conjugated ligands. Dalton Trans 2015; 44:4744-50. [PMID: 25665985 DOI: 10.1039/c4dt03903c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hexacoordinate silicon complexes L2SiX2 (L = a 2-benzoylpyrrol-1-yl derivative, X = CN, NCS) were synthesized from L2SiCl2 by ligand exchange with trimethylsilyl reagents Me3SiX. In the presence of [Tp*CuNCMe] and Me3SiCN the silicon complex L2Si(NC(CuTp*))2 was obtained, which contains a linear Cu-CN-Si-NC-Cu unit (Tp* = hydrotris(3,5-dimethylpyrazolyl)borato).
Collapse
Affiliation(s)
- Alexander Kämpfe
- Institut für Anorganische Chemie, TU Bergakademie Freiberg, D-09596 Freiberg, Germany.
| | | | | | | |
Collapse
|
30
|
Nakamae K, Takemura Y, Kure B, Nakajima T, Kitagawa Y, Tanase T. Self-Alignment of Low-Valent Octanuclear Palladium Atoms. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409511] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
31
|
Nakamae K, Takemura Y, Kure B, Nakajima T, Kitagawa Y, Tanase T. Self-Alignment of Low-Valent Octanuclear Palladium Atoms. Angew Chem Int Ed Engl 2014; 54:1016-21. [DOI: 10.1002/anie.201409511] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 10/29/2014] [Indexed: 11/08/2022]
|
32
|
Tanase T, Yamamoto C, Kure B, Nakajima T. One-dimensional Anisotropic Metal–Organic Module Containing a Pt6 Chain Terminated with Redox Active Ferrocenyl Units. CHEM LETT 2014. [DOI: 10.1246/cl.140161] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Chie Yamamoto
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Bunsho Kure
- Department of Chemistry, Faculty of Science, Nara Women’s University
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women’s University
| |
Collapse
|
33
|
Goto E, Begum RA, Ueno C, Hosokawa A, Yamamoto C, Nakamae K, Kure B, Nakajima T, Kajiwara T, Tanase T. Electron-Deficient Pt2M2Pt2 Hexanuclear Metal Strings (M = Pt, Pd) Supported by Triphosphine Ligands. Organometallics 2014. [DOI: 10.1021/om401211d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eri Goto
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Rowshan Ara Begum
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Chiaki Ueno
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Aya Hosokawa
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Chie Yamamoto
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Kanako Nakamae
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Bunsho Kure
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Takayuki Nakajima
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Takashi Kajiwara
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| | - Tomoaki Tanase
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara 630-8506, Japan
| |
Collapse
|
34
|
Tanase T, Otaki R, Nishida T, Takenaka H, Takemura Y, Kure B, Nakajima T, Kitagawa Y, Tsubomura T. Strongly luminous tetranuclear gold(I) complexes supported by tetraphosphine ligands, meso- or rac-bis[(diphenylphosphinomethyl)phenylphosphino]methane. Chemistry 2014; 20:1577-96. [PMID: 24403217 DOI: 10.1002/chem.201303729] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Indexed: 11/11/2022]
Abstract
A series of tetragold(I) complexes supported by tetraphosphine ligands, meso- and rac-bis[(diphenylphosphinomethyl)phenylphosphino]methane (meso- and rac-dpmppm) were synthesized and characterized to show that the tetranuclear Au(I) alignment varies depending on syn- and anti-arrangements of the two dpmppm ligands with respect to the metal chain. The structures of syn-[Au4 (meso-dpmppm)2X]X'3 (X = Cl; X' = Cl (4 a), PF6 (4 b), BF4 (4 c)) and syn-[Au4 (meso-dpmppm)2]X4 (X = PF6 (4 d), BF4 (4 e), TfO (4 f); TfO = triflate) involved a bent tetragold(I) core with a counter anion X incorporated into the bent pocket. Complexes anti-[Au4 (meso-dpmppm)2]X4 (X = PF6 (5 d), BF4 (5 e), TfO (5 f)) contain a linearly ordered Au4 string and complexes syn-[Au4 (rac-dpmppm)2X2]X'2 (X = Cl, X' = Cl (6 a), PF6 (6 b), BF4 (6 c)) and syn-[Au4 (rac-dpmppm)2]X4 (X = PF6 (6 d), BF4 (6 e), TfO (6 f)) consist of a zigzag tetragold(I) chain supported by the two syn-arranged rac-dpmppm ligands. Complexes 4 d-f, 5 d-f, and 6 d-f with non-coordinative large anions are strongly luminescent in the solid state (λmax = 475-515 nm, Φ = 0.67-0.85) and in acetonitrile (λmax = 491-520 nm, Φ = 0.33-0.97); the emission was assigned to phosphorescence from (3) [dσ*σ*σ* pσσσ] excited state of the Au4 centers on the basis of DFT calculations as well as the long lifetime (a few μs). The emission energy is predominantly determined by the HOMO and LUMO characters of the Au4 centers, which depend on the bent (4), linear (5), and zigzag (6) alignments. The strong emissions in acetonitrile were quenched by chloride anions through simultaneous dynamic and static quenching processes, in which static binding of chloride ions to the Au4 excited species should be the most effective. The present study demonstrates that the structures of linear tetranuclear gold(I) chains can be modified by utilizing the stereoisomeric tetraphosphines, meso- and rac-dpmppm, which may lead to fine tuning of the strongly luminescent properties intrinsic to the Au(I) 4 cluster centers.
Collapse
Affiliation(s)
- Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women's University, Kitauoya-nishi-machi, Nara, 630-8506 (Japan)
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Uemura K, Ebihara M. Paramagnetic one-dimensional chains comprised of trinuclear Pt-Cu-Pt and paddlewheel dirhodium complexes with metal-metal bonds. Inorg Chem 2013; 52:5535-50. [PMID: 23617357 DOI: 10.1021/ic400470g] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One-dimensional (1-D) chain complexes constructed by metal-metal bonds containing three types of metal species-platinum, rhodium, and copper-have been rationally synthesized and characterized by single-crystal X-ray analyses and physical measurements. The paddlewheel or lantern type complex, [Rh2(O2CCH3)4] (i.e., [Rh2]), has a vacant σ* orbital which accepts the electrons from the filled dz(2) orbital of cis-[Pt(piam)2(NH3)2]·2H2O (1, i.e. [Pt], where piam = pivalamidate) to afford a tetranuclear complex, [{Rh2(O2CCH3)4}{Pt(piam)2(NH3)2}2]·2H2O (2). Compound 2 forms a linear alignment as [Pt]-[Rh2]-[Pt] with unbridged Rh-Pt bonds, where the oxygen atoms of the piam ligands in the [Pt] are noncoordinated, showing the capability of binding another metal ion. Simply mixing [Rh2] and the heterometallic trinuclear complex [Pt2Cu(piam)4(NH3)4](PF6)2 (3, i.e. [Pt-Cu-Pt]) in a ratio of 1:1 in MeOH, EtOH, or Me2CO affords [{Rh2(O2CCH3)4}{Pt2Cu(piam)4(NH3)4}]n(PF6)2n (4), [{Rh2(O2CCH3)4}{Pt2Cu(piam)4(NH3)4}]n(PF6)2n (5), or [{Rh2(O2CCH3)4}{Pt2Cu(piam)4(NH3)4}]n(PF6)2n·6nMe2CO (6), respectively. Compounds 4-6 form infinite chains with the repetition of -{[Rh2]-[Pt-Cu-Pt]}n-, which to our knowledge, are the first examples of heterometallic 1-D chains comprised of three types of metal species with direct metal-metal bonds. The CF3CO2(-), ClO4(-), and water molecules influence the crystal packing to form an octanuclear complex of [{Rh2(O2CCH3)4}{Pt2Cu(piam)4(NH3)4}2](CF3CO2)2(ClO4)2·2H2O (7) with [Pt-Cu-Pt]-[Rh2]-[Pt-Cu-Pt] alignment. Considering the crystal structures and X-ray photoelectron spectra (XPS) measurements in 4-7, the oxidation states of the metal atoms are -{[Rh2(II,II)]-[Pt(II)-Cu(II)-Pt(II)]}n- or [Pt(II)-Cu(II)-Pt(II)]-[Rh2(II,II)]-[Pt(II)-Cu(II)-Pt(II)], which are unchanged from those in the starting compounds. Electron paramagnetic resonance spectra of 4-7 show axially symmetric spectra with g∥ > g⊥, indicating that the HOMO (SOMO) is a Cu d(x(2)-y(2)) orbital. In 7, the hyperfine coupling in the spectrum indicates that the unpaired spin on Cu is perturbed by the Pt atoms.
Collapse
Affiliation(s)
- Kazuhiro Uemura
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
| | | |
Collapse
|
36
|
Tanase T, Hatada S, Mochizuki A, Nakamae K, Kure B, Nakajima T. Flexible, linear, tetranuclear palladium complexes supported by tetraphosphine ligands with electron-withdrawing groups. Dalton Trans 2013; 42:15941-52. [DOI: 10.1039/c3dt51433a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
37
|
Goto E, Begum RA, Hosokawa A, Yamamoto C, Kure B, Nakajima T, Tanase T. Hydride-Bridged Pt2M2Pt2 Hexanuclear Metal Strings (M = Pt, Pd) Derived from Reductive Coupling of Pt2M Building Blocks Supported by Triphosphine Ligands. Organometallics 2012. [DOI: 10.1021/om300680p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eri Goto
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Rowshan Ara Begum
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Aya Hosokawa
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Chie Yamamoto
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Bunsho Kure
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Takayuki Nakajima
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| | - Tomoaki Tanase
- Department
of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi, Nara, 630-8506, Japan
| |
Collapse
|
38
|
Murahashi T, Usui K, Tachibana Y, Kimura S, Ogoshi S. Selective construction of Pd2Pt and PdPt2 triangles in a sandwich framework: carbocyclic ligands as scaffolds for a mixed-metal system. Chemistry 2012; 18:8886-90. [PMID: 22714664 DOI: 10.1002/chem.201201474] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Indexed: 11/08/2022]
Abstract
Sandwich time! The mixed-metal triangular-trinuclear sandwich complexes of Pd(2)Pt and PdPt(2) were selectively synthesized. The Pd(2)Pt and PdPt(2) triangles in a cycloheptatrienyl sandwich framework were identified by (31)P NMR analyses of the tris-triphenylphosphine complexes (see scheme).
Collapse
|
39
|
Yoshii A, Takenaka H, Nagata H, Noda S, Nakamae K, Kure B, Nakajima T, Tanase T. Heterotrinuclear Complexes with Palladium, Rhodium, and Iridium Ions Assembled by Conformational Switching of a Tetraphosphine Ligand around a Palladium Center. Organometallics 2011. [DOI: 10.1021/om2006744] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akiko Yoshii
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Hiroe Takenaka
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Hiroko Nagata
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Sayo Noda
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Kanako Nakamae
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Bunsho Kure
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| |
Collapse
|
40
|
Herbert DE, Ozerov OV. Binuclear Palladium Complexes Supported by Bridged Pincer Ligands. Organometallics 2011. [DOI: 10.1021/om2008056] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- David E. Herbert
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Oleg V. Ozerov
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| |
Collapse
|
41
|
Hosokawa A, Kure B, Nakajima T, Nakamae K, Tanase T. Intramolecular Metal–Metal Bond Rearrangement in a Pt2PdHg Heterometallic Cluster Forming a HgI–PdI Covalent Bond. Organometallics 2011. [DOI: 10.1021/om2008524] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aya Hosokawa
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Bunsho Kure
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Takayuki Nakajima
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Kanako Nakamae
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| | - Tomoaki Tanase
- Department of Chemistry, Faculty of Science, Nara Women’s University, Kitauoya-nishi-machi,
Nara 630-8506, Japan
| |
Collapse
|
42
|
Welsch S, Lescop C, Balazs G, Réau R, Scheer M. Simultaneous End-On/Side-On Coordination Modes of a Diphosphorus Tetrahedral Complex Imposed by Pre-organization of Oligometallic CuI Acceptors. Chemistry 2011; 17:9130-41. [DOI: 10.1002/chem.201100845] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Indexed: 11/10/2022]
|
43
|
|
44
|
Bollermann T, Freitag K, Gemel C, Seidel RW, von Hopffgarten M, Frenking G, Fischer RA. Chemie von [Zn2Cp*2]: einwertiges {.ZnZnCp*}, stabilisiert in den metallreichen Verbindungen [(Pd,Pt)(GaCp*)a(ZnCp*)4−a(ZnZnCp*)4−a] (a=0, 2). Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005808] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
45
|
Bollermann T, Freitag K, Gemel C, Seidel RW, von Hopffgarten M, Frenking G, Fischer RA. The Reactivity of [Zn2Cp*2]: Trapping Monovalent {.ZnZnCp*} in the Metal-Rich Compounds [(Pd,Pt)(GaCp*)a(ZnCp*)4−a(ZnZnCp*)4−a] (a=0, 2). Angew Chem Int Ed Engl 2010; 50:772-6. [PMID: 21226174 DOI: 10.1002/anie.201005808] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Indexed: 11/06/2022]
Affiliation(s)
- Timo Bollermann
- Inorganic Chemistry II-Organometallics & Materials, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, 44780 Bochum, Germany
| | | | | | | | | | | | | |
Collapse
|
46
|
Pal K, Nakao K, Mashima K. Solvent-Dependent cis/trans Isomerism at the Paddlewheel Mo2 Core of Linear Tetranuclear Clusters of MoII and CuI Supported by 6-(Diphenylphosphanyl)pyridin-2-olate (pyphos). Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000896] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
47
|
Lei WJ, Tan XW, Han LJ, Zhan SZ, Li BT. Design, synthesis and properties of a trinuclear copper(I) cluster with a triazenide ligand. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2010.07.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
48
|
|
49
|
Uemura K, Fukui K, Yamasaki K, Matsumoto K, Ebihara M. Synthesis, Crystal Structure, and Characterization of a Heterometallic One-Dimensional Complex with Metal−Metal Bonds. Inorg Chem 2010; 49:7323-30. [DOI: 10.1021/ic1004775] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kazuhiro Uemura
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| | - Kôichi Fukui
- Department of Chemistry, School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Kana Yamasaki
- Department of Chemistry, School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Kazuko Matsumoto
- Department of Chemistry, School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
- Tokyo Chemical Industry Company, Ltd., 4-10-2 Nihonbashi-honcho, Chuo, Tokyo 103-0023, Japan
| | - Masahiro Ebihara
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu 501-1193, Japan
| |
Collapse
|
50
|
Mashima K. Linearly Aligned Metal Clusters: Versatile Reactivity and Bonding Nature of Tetrametal M–Mo–Mo–M Complexes (M = Pt, Pd, Ir, and Rh) Supported by 6-Diphenylphosphino-2-pyridonato Ligand. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20090281] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|