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Zechovský J, Kertész E, Erben M, Hejda M, Jambor R, Růžička A, Benkő Z, Dostál L. Palladium(II) and Platinum(II) Bis(Stibinidene) Complexes with Intramolecular Hydrogen-Bond Enforced Geometries. Chempluschem 2024; 89:e202300573. [PMID: 38015161 DOI: 10.1002/cplu.202300573] [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: 10/10/2023] [Revised: 11/20/2023] [Accepted: 11/28/2023] [Indexed: 11/29/2023]
Abstract
The coordination capability of two N,C,N pincer coordinated stibinidenes, i. e. bis(imino)- [2,6-(DippN=CH)2C6H3]Sb (1) or imino-amino- [2-(DippN=CH)-6-(DippNHCH2)C6H3]Sb (2) toward palladium(II) and platinum(II) centers was examined. In the course of this study, seven new square-planar bis(stibinidene) complexes were synthesized and characterized by NMR, IR, Raman, UV-vis spectroscopy and single crystal (sc)-X-ray diffraction analysis. In all cases, both stibinidene ligands 1 or 2 adopt trans positions, but differ significantly in the torsion angle describing mutual orientation of aromatic rings of the stibinidenes along the Sb-Pd/Pt-Sb axes. Furthermore, majority of complexes form isomers in solution most probably due to a hindered rotation around Sb-Pd/Pt bonds caused by bulkiness of 1 and 2. This phenomenon also seems to be influenced by the absence/presence of a pendant -CH2NH- group in 1/2 that is able to form intramolecular hydrogen bonds with the adjacent chlorine atom(s) attached to the metal centers. The whole problem was subjected to a theoretical study focusing on the role of hydrogen bonds in structure architecture of the complexes. To describe the UV-vis spectra of these highly coloured complexes, TD-DFT calculations were employed. These outline differences between the stibinidene ligands, the transition metals as well as between the charge of the complexes (neutral or anionic).
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Affiliation(s)
- Jan Zechovský
- Department of General and Inorganic Chemistry, FCHT, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Erik Kertész
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Milan Erben
- Department of General and Inorganic Chemistry, FCHT, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Martin Hejda
- Department of General and Inorganic Chemistry, FCHT, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Roman Jambor
- Department of General and Inorganic Chemistry, FCHT, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, FCHT, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp. 3, 1111, Budapest, Hungary
- HUN-REN-BME Computation Driven Chemistry Research Group, Műegyetem rkp. 3, 1111, Budapest, Hungary
| | - Libor Dostál
- Department of General and Inorganic Chemistry, FCHT, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic
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García-Romero Á, Waters JE, Jethwa RB, Bond AD, Colebatch AL, García-Rodríguez R, Wright DS. Highly Adaptive Nature of Group 15 Tris(quinolyl) Ligands─Studies with Coinage Metals. Inorg Chem 2023; 62:4625-4636. [PMID: 36883367 DOI: 10.1021/acs.inorgchem.3c00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The substitution of heavier, more metallic atoms into classical organic ligand frameworks provides an important strategy for tuning ligand properties, such as ligand bite and donor character, and is the basis for the emerging area of main-group supramolecular chemistry. In this paper, we explore two new ligands [E(2-Me-8-qy)3] [E = Sb (1), Bi (2); qy = quinolyl], allowing a fundamental comparison of their coordination behavior with classical tris(2-pyridyl) ligands of the type [E'(2-py)3] (E = a range of bridgehead atoms and groups, py = pyridyl). A range of new coordination modes to Cu+, Ag+, and Au+ is seen for 1 and 2, in the absence of steric constraints at the bridgehead and with their more remote N-donor atoms. A particular feature is the adaptive nature of these new ligands, with the ability to adjust coordination mode in response to the hard-soft character of coordinated metal ions, influenced also by the character of the bridgehead atom (Sb or Bi). These features can be seen in a comparison between [Cu2{Sb(2-Me-8-qy)3}2](PF6)2 (1·CuPF6) and [Cu{Bi(2-Me-8-qy)3}](PF6) (2·CuPF6), the first containing a dimeric cation in which 1 adopts an unprecedented intramolecular N,N,Sb-coordination mode while in the second, 2 adopts an unusual N,N,(π-)C coordination mode. In contrast, the previously reported analogous ligands [E(6-Me-2-py)3] (E = Sb, Bi; 2-py = 2-pyridyl) show a tris-chelating mode in their complexes with CuPF6, which is typical for the extensive tris(2-pyridyl) family with a range of metals. The greater polarity of the Bi-C bond in 2 results in ligand transfer reactions with Au(I). Although this reactivity is not in itself unusual, the characterization of several products by single-crystal X-ray diffraction provides snapshots of the ligand transfer reaction involved, with one of the products (the bimetallic complex [(BiCl){ClAu2(2-Me-8-qy)3}] (8)) containing a Au2Bi core in which the shortest Au → Bi donor-acceptor bond to date is observed.
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Affiliation(s)
- Álvaro García-Romero
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, Valladolid 47011, Spain
| | - Jessica E Waters
- The Francis Crick Institute, 1 Midland Road, London NW1 1AT, U.K
| | - Rajesh B Jethwa
- Institute of Science and Technology Austria (ISTA), Am Campus 1, Klosterneuburg 3400, Austria
| | - Andrew D Bond
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Annie L Colebatch
- Research School of Chemistry, The Australian National University, Canberra, ACT 2601, Australia
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, Valladolid 47011, Spain
| | - Dominic S Wright
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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Demyanov YV, Sadykov EH, Rakhmanova MI, Novikov AS, Bagryanskaya IY, Artem’ev AV. Tris(2-Pyridyl)Arsine as a New Platform for Design of Luminescent Cu(I) and Ag(I) Complexes. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27186059. [PMID: 36144790 PMCID: PMC9503387 DOI: 10.3390/molecules27186059] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 11/23/2022]
Abstract
The coordination behavior of tris(2-pyridyl)arsine (Py3As) has been studied for the first time on the example of the reactions with CuI, CuBr and AgClO4. When treated with CuI in CH2Cl2 medium, Py3As unexpectedly affords the scorpionate complex [Cu(Py3As)I]∙CH2Cl2 only, while this reaction in MeCN selectively leads to the dimer [Cu2(Py3As)2I2]. At the same time, the interaction of CuBr with Py3As exclusively gives the dimer [Cu2(Py3As)2Br2]. It is interesting to note that the scorpionate [Cu(Py3As)I]∙CH2Cl2, upon fuming with a MeCN vapor (r.t., 1 h), undergoes quantitative dimerization into the dimer [Cu2(Py3As)2I2]. The reaction of Py3As with AgClO4 produces complex [Ag@Ag4(Py3As)4](CIO4)5 featuring a Ag-centered Ag4 tetrahedral kernel. At ambient temperature, the obtained Cu(I) complexes exhibit an unusually short-lived photoluminescence, which can be tentatively assigned to the thermally activated delayed fluorescence of (M + X) LCT type (M = Cu, L = Py3As; X = halogen). For the title Ag(I) complexes, QTAIM calculations reveal the pronounced argentophilic interactions for all short Ag∙∙∙Ag contacts (3.209–3.313 Å).
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Affiliation(s)
- Yan V. Demyanov
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Evgeniy H. Sadykov
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Marianna I. Rakhmanova
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Alexander S. Novikov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russia
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya Street 6, 117198 Moscow, Russia
| | - Irina Yu. Bagryanskaya
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, SB RAS, 9 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
| | - Alexander V. Artem’ev
- Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia
- Correspondence:
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García-Romero Á, Martín-Álvarez JM, Miguel D, Wright DS, Álvarez CM, García-Rodríguez R. Cation- and Anion-Mediated Supramolecular Assembly of Bismuth and Antimony Tris(3-pyridyl) Complexes. Inorg Chem 2021; 60:19206-19218. [PMID: 34882394 PMCID: PMC8693195 DOI: 10.1021/acs.inorgchem.1c03004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
The use of antimony
and bismuth in supramolecular chemistry has
been largely overlooked in comparison to the lighter elements of Group
15, and the coordination chemistry of the tripodal ligands [Sb(3-py)3] and [Bi(3-py)3] (L) containing the heaviest p-block
element bridgehead atoms has been unexplored. We show that these ligands
form a common hybrid metal–organic framework (MOF) structure
with Cu(I) and Ag(I) (M) salts of weakly coordinating anions (PF6–, SbF6–, and
OTf–), composed of a cationic substructure of rhombic
cage (M)4(L)4 units linked by Sb/Bi–M
bonding. The greater Lewis acidity of Bi compared to Sb can, however,
allows anion···Bi interactions to overcome Bi–metal
bonding in the case of BF4–, leading
to collapse of the MOF structure (which is also seen where harder
metals like Li+ are employed). This study therefore provides
insight into the way in which the electronic effects of the bridgehead
atom in these ligand systems can impact their supramolecular chemistry. The Lewis acidity of the Group 15 bridgehead
atoms (E =
Sb vs Bi) proves to be a decisive structural directing factor in the
coordination of tris(3-pyridyl) ligands E(3-py)3, being
responsible for promoting or disfavoring E−metal or E···anion
interactions.
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Affiliation(s)
- Álvaro García-Romero
- GIR MIOMeT-IU, Cinquima, Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Jose M Martín-Álvarez
- GIR MIOMeT-IU, Cinquima, Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Daniel Miguel
- GIR MIOMeT-IU, Cinquima, Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Dominic S Wright
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Celedonio M Álvarez
- GIR MIOMeT-IU, Cinquima, Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU, Cinquima, Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
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Chen X, Hu H, Wang S, Li B, Wang H. Diversity of Coordination Architecture of Zinc Complexes with Diphenylarsinate. ChemistrySelect 2021. [DOI: 10.1002/slct.202103625] [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)
- Xiao Chen
- State Key Laboratory of NBC Protection for Civilian Changping Beijing 102205 China
| | - Huijuan Hu
- State Key Laboratory of NBC Protection for Civilian Changping Beijing 102205 China
| | - Shan Wang
- State Key Laboratory of NBC Protection for Civilian Changping Beijing 102205 China
| | - Biao Li
- State Key Laboratory of NBC Protection for Civilian Changping Beijing 102205 China
| | - Hongmei Wang
- State Key Laboratory of NBC Protection for Civilian Changping Beijing 102205 China
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García-Romero Á, Martín-Álvarez JM, Colebatch AL, Plajer AJ, Miguel D, Álvarez CM, García-Rodríguez R. Synthesis of tris(3-pyridyl)aluminate ligand and its unexpected stability against hydrolysis: revealing cooperativity effects in heterobimetallic pyridyl aluminates. Dalton Trans 2021; 50:13059-13065. [PMID: 34581366 DOI: 10.1039/d1dt02351a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report the elusive metallic anion [EtAl(3-py)3]- (3-py = 3-pyridyl) (1), the first member of the anionic tris(3-pyridyl) family. Unexpectedly, the lithium complex 1Li shows substantial protic stability against water and alcohols, unlike related tris(2-pyridyl)aluminate analogues. This stability appears to be related to the inability of the [EtAl(3-py)3]- anion to chelate Li+, which precludes a decomposition pathway involving Li/Al cooperativity.
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Affiliation(s)
- Álvaro García-Romero
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid; Campus Miguel Delibes, 47011 Valladolid, Spain.
| | - Jose M Martín-Álvarez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid; Campus Miguel Delibes, 47011 Valladolid, Spain.
| | - Annie L Colebatch
- Chemistry Department. Cambridge University, Lensfield Road, Cambridge CB2 1EW, UK.,Research School of Chemistry. Australian National University, Canberra, ACT, 2601, Australia
| | - Alex J Plajer
- Chemical Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Daniel Miguel
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid; Campus Miguel Delibes, 47011 Valladolid, Spain.
| | - Celedonio M Álvarez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid; Campus Miguel Delibes, 47011 Valladolid, Spain.
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid; Campus Miguel Delibes, 47011 Valladolid, Spain.
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