|
1
|
Mian MR, Wakizaka M, Yoshida T, Iguchi H, Takaishi S, Afrin U, Miyamoto T, Okamoto H, Tanaka H, Kuroda SI, Breedlove BK, Yamashita M. An unusual Pd(III) oxidation state in the Pd-Cl chain complex with high thermal stability and electrical conductivity. Dalton Trans 2021; 50:1614-1619. [PMID: 33332512 DOI: 10.1039/d0dt03848b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Pd(iii) oxidation state is unusual and unstable since it strongly tends to disproportionate. We synthesized the quasi-one-dimensional (1D) halogen-bridged Pd(iii)-Cl complex [Pd(dabdOH)2Cl]Cl2 (1-Cl; dabdOH = (2S,3S)-2,3-diaminobutane-1,4-diol) with multiple hydrogen bonds. From single-crystal X-ray diffraction, the bridging Cl- ions were located at the midpoint of the Pd-Cl-Pd moieties in the 1D chains, indicating that the Pd ions are in a Pd(iii) average valence (AV) state. Moreover, bright spots for the Pd(iii) dz2 orbitals in the upper Hubbard band above the Fermi level were observed every ∼5 Å using scanning tunnelling microscopy. These results clearly indicate that the Pd ions are in a Pd(iii) AV state in 1-Cl. In addition, 1-Cl has the highest thermal stability (470 K) among the Pd(iii) complexes reported and the highest electrical conductivity (0.6 S cm-1 at 300 K) among the 1D Pd-Cl chains reported so far.
Collapse
Affiliation(s)
- Mohammad Rasel Mian
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Masanori Wakizaka
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Unjila Afrin
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Tatsuya Miyamoto
- Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Hiroshi Okamoto
- Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Hisaaki Tanaka
- Department of Applied Physics, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan
| | - Shin-Ichi Kuroda
- Department of Applied Physics, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya 464-8603, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan. and School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| |
Collapse
|
|
2
|
Yamashita M. Next Generation Multifunctional Nano-Science of Advanced Metal Complexes with Quantum Effect and Nonlinearity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200257] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, P. R. China
| |
Collapse
|
|
3
|
Bull CL, Ridley CJ, Playford HY. Using applied pressure to guide materials design: a neutron diffraction study of La 2NiO 4+δ and Pr 2NiO 4+δ. Dalton Trans 2020; 49:10631-10637. [PMID: 32697242 DOI: 10.1039/d0dt02155e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The compression behaviours of La2NiO4+δ and Pr2NiO4+δ have been studied up to a pressure of 2.8 and 2.2 GPa respectively. Using neutron diffraction, the mechanism of compression, and the behaviour of the NiO6 and La/PrO9 polyhedra in these layered perovskite materials have been determined. Their compression mechanisms have then been compared to related materials (La2-xPrxNiO4, Pr2-xNdxNiO4, La2-xSrxNiO4 and Pr2-xCaxNiO4) where the unit-cell volume has been reduced by controlling the composition (x), which acts as an 'effective chemical pressure'. Understanding the effects of both has implications for materials design; pressure can be used to finely tune a property, which theoretically may then be emulated using chemical doping.
Collapse
Affiliation(s)
- Craig L Bull
- ISIS Neutron and Muon Facility, STFC, Rutherford Appleton Laboratory, Chilton, OXON OX11 0QX, UK.
| | - Christopher J Ridley
- ISIS Neutron and Muon Facility, STFC, Rutherford Appleton Laboratory, Chilton, OXON OX11 0QX, UK.
| | - Helen Y Playford
- ISIS Neutron and Muon Facility, STFC, Rutherford Appleton Laboratory, Chilton, OXON OX11 0QX, UK.
| |
Collapse
|
|
4
|
Afrin U, Iguchi H, Mian MR, Takaishi S, Yamakawa H, Terashige T, Miyamoto T, Okamoto H, Yamashita M. MX-type single chain complexes with an aromatic in-plane ligand: incorporation of aromatic interactions for stabilizing the chain structure. Dalton Trans 2019; 48:7828-7834. [PMID: 31070646 DOI: 10.1039/c9dt00784a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
MX-type one-dimensional complexes [PtIV(amp)2Br2][PtII/IV(amp)2Br]2(HSO4)2(SO4)2·13H2O (3) and [PtIV(amp)2Br2][PtII/IV(amp)2Br]2(H2PO4)6·8H2O (4) were synthesized as the first analogue containing only an aromatic in-plane ligand. The Pt-Br chain structures of 3 and 4 are stabilized by both the hydrogen-bond network along the chain and the π-stacking via intercalated Pt(iv) complexes. Structural and spectroscopic studies indicated that both 3 and 4 form the Pt(ii/iv) mixed valence state.
Collapse
Affiliation(s)
- Unjila Afrin
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
|
5
|
Rasel Mian M, Iguchi H, Miyata M, Takaishi S, Yamakawa H, Terashige T, Miyamoto T, Okamoto H, Yamashita M. Structural Study of Bromide-Bridged Pd Chain Complex with Weak CH···O Hydrogen Bonds. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201700461] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Rasel Mian
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aza-Aoba 980-8578 Aramaki, Aoba-ku, Sendai Japan
| | - Hiroaki Iguchi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aza-Aoba 980-8578 Aramaki, Aoba-ku, Sendai Japan
| | - Momoka Miyata
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aza-Aoba 980-8578 Aramaki, Aoba-ku, Sendai Japan
| | - Shinya Takaishi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aza-Aoba 980-8578 Aramaki, Aoba-ku, Sendai Japan
| | - Hiromichi Yamakawa
- Department of Advanced Materials Science; Graduate School of Frontier Sciences; The University of Tokyo; Kashiwa 5-1-5 277-8561 Chiba Japan
| | - Tsubasa Terashige
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory; National Institute of Advanced Industrial Science and Technology; 277-8568 Chiba Japan
| | - Tatsuya Miyamoto
- Department of Advanced Materials Science; Graduate School of Frontier Sciences; The University of Tokyo; Kashiwa 5-1-5 277-8561 Chiba Japan
| | - Hiroshi Okamoto
- Department of Advanced Materials Science; Graduate School of Frontier Sciences; The University of Tokyo; Kashiwa 5-1-5 277-8561 Chiba Japan
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory; National Institute of Advanced Industrial Science and Technology; 277-8568 Chiba Japan
| | - Masahiro Yamashita
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aza-Aoba 980-8578 Aramaki, Aoba-ku, Sendai Japan
- Advanced Institute for Materials Research; Tohoku University; 2-1-1 Katahira 980-8577 Aoba-ku, Sendai Japan
- School of Materials Science and Engineering; Nankai University; 300350 Tianjin P. R. China
| |
Collapse
|