1
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Kumagai S, Yoshida T, Iguchi H, Wakizaka M, Funakoshi N, Yamashita M, Takaishi S. Chemical pressure-induced Pt III-I Mott-Hubbard nanowire, [Pt(en) 2I](Asp-C n) 2·H 2O (13 ≤ n), detected via polarized infrared spectroscopy. Chem Commun (Camb) 2023; 59:14118-14121. [PMID: 37947057 DOI: 10.1039/d3cc04285e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The electronic states of iodo-bridged platinum nanowire complexes have been studied using polarized FT-IR spectroscopy. The N-H symmetrical stretching mode was found to be highly sensitive to the electronic states, distinguishing mixed-valence (MV) and averaged-valence (AV) states. The first Pt(III) nanowire complexes have been realized by the chemical pressures of the counter-anions.
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Affiliation(s)
- Shohei Kumagai
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
| | - Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
| | - Masanori Wakizaka
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
| | - Nobuto Funakoshi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai 200092, P. R. China
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan.
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2
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Mian MR, Wakizaka M, Yoshida T, Iguchi H, Takaishi S, Yamashita M. Recent progress on unusual halogen-bridged Pd(III) chain compounds realized by weak ligand field and triple hydrogen bond approaches. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Yoshida T, Takaishi S, Guérin L, Kojima T, Ohtsu H, Kawano M, Miyamoto T, Okamoto H, Kato K, Takata M, Hosomi Y, Yoshida S, Shigekawa H, Tanaka H, Kuroda SI, Iguchi H, Breedlove BK, Li ZY, Yamashita M. Hydrogen Bonding Propagated Phase Separation in Quasi-Epitaxial Single Crystals: A Pd-Br Molecular Insulator. Inorg Chem 2022; 61:14067-14074. [PMID: 36006962 DOI: 10.1021/acs.inorgchem.2c02078] [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
In condensed matter, phase separation is strongly related to ferroelasticity, ferroelectricity, ferromagnetism, electron correlation, and crystallography. These ferroics are important for nano-electronic devices such as non-volatile memory. However, the quantitative information regarding the lattice (atomic) structure at the border of phase separation is unclear in many cases. Thus, to design electronic devices at the molecular level, a quantitative electron-lattice relationship must be established. Herein, we elucidated a PdII-PdIV/PdIII-PdIII phase transition and phase separation mechanism for [Pd(cptn)2Br]Br2 (cptn = 1R,2R-diaminocyclopentane), propagated through a hydrogen-bonding network. Although the Pd···Pd distance was used to determine the electronic state, the differences in the Pd···Pd distance and the optical gap between Mott-Hubbard (MH) and charge-density-wave (CDW) states were only 0.012 Å and 0.17 eV, respectively. The N-H···Br···H-N hydrogen-bonding network functioned as a jack, adjusting the structural difference dynamically, and allowing visible ferroelastic phase transition/separation in a fluctuating N2 gas flow. Additionally, the effect of the phase separation on the spin susceptibility and electrical conductivity were clarified to represent the quasi-epitaxial crystals among CDW-MH states. These results indicate that the phase transitions and separations could be controlled via atomic and molecular level modifications, such as the addition of hydrogen bonding.
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Affiliation(s)
- Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza- Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza- Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Laurent Guérin
- Institut de Physique de Rennes, Université de Rennes 1, 263 Av. du Général Leclerc, Rennes Cedex 35042, France
| | - Tatsuhiro Kojima
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Hiroyoshi Ohtsu
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Masaki Kawano
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Tatsuya Miyamoto
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Hiroshi Okamoto
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Kenichi Kato
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Masaki Takata
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Yuka Hosomi
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Shoji Yoshida
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Hidemi Shigekawa
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
| | - Hisaaki Tanaka
- Department of Applied Physics, Graduate School of Engineering, Nagoya, University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Shin-Ichi Kuroda
- Department of Applied Physics, Graduate School of Engineering, Nagoya, University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza- Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza- Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Zhao-Yang Li
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - 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, China
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4
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Puddephatt RJ. Supramolecular organometallic chemistry: the platinum(IV) paradigm. Dalton Trans 2022; 51:7011-7024. [PMID: 35438702 DOI: 10.1039/d2dt00872f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Supramolecular chemistry and the chemistry of alkyl derivatives of the transition metals are both topics of considerable current interest, but the combination of the two fields is still underdeveloped. The challenges are, in large part, experimental in nature. For example, the self-assembly of molecules in supramolecular chemistry often relies on intermolecular hydrogen bonding, but most alkyl-transition metal bonds are cleaved by the protic groups used in hydrogen bond formation. Alkyl-platinum(IV) bonds are inert to protonolysis or attack by other electrophiles under mild conditions, and this has allowed an extensive supramolecular chemistry of organoplatinum(IV) complexes to be developed, as outlined in this perspective review. Highlights include a zeolitic structure, a polyrotaxane, a double helix, a nanotube structure and an example of spontaneous resolution to form a chiral sheet structure.
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5
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Kumagai S, Iguchi H, Yamashita M, Takeda S, Takaishi S. Charge-Density-Wave Amplitude in Quasi-one-dimensional Halogen-bridged Palladium Complex, [Pd(15N-en)2Br](Suc-C5)2·H2O (Suc-C5 = dipentylsulfosuccinate), Estimated by 15N Solid-state NMR. CHEM LETT 2022. [DOI: 10.1246/cl.210804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shohei Kumagai
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578
- School of Materials Science and Engineering, Nankai University, Tianjin300350, China
| | - Sadamu Takeda
- Department of Chemistry, Graduate School of Science, Hokkaido University, Kita-10 Nishi-8 Kita-ku, Sapporo 060-0810
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578
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6
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Kumagai S, Iguchi H, Yamashita M, Takaishi S. Thermally Induced Electron-Hole Dissociation Dynamics in Quasi-One-Dimensional Bromo-Bridged Palladium(III) Mott-Insulator [Pd(en)2Br](Suc-Cn)2·H2O (Cn-Y = dialkylsulfosuccinate; n = 5 and 6). Phys Chem Chem Phys 2022; 24:7978-7982. [DOI: 10.1039/d2cp00051b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Current-voltage characteristics and dielectric properties were studied on bromo-bridged one-dimensional compounds, [Pd(en)2Br](Suc-C5)2·H2O, exhibiting mixed-valence and averaged valence (MV-AV) phase transition. In the AV phase, a clear nonlinear current-voltage characteristics was...
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7
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Yu F, Ji BQ, Jagodič M, Su YM, Zhang SS, Feng L, Kurmoo M, Jagličić Z, Sun D. Copper(II)-Assisted Ligand Fragmentation Leading to Three Families of Metallamacrocycle. Inorg Chem 2020; 59:13524-13532. [DOI: 10.1021/acs.inorgchem.0c01915] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fei Yu
- Institute of Advanced Materials and Flexible Electronics (IAMFE), School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, PR China
| | - Bao-Qian Ji
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, PR China
| | - Marko Jagodič
- Institute of Mathematics, Physics and Mechanics, Jadranska 19, SI-1000 Ljubljana, Slovenia
| | - Yan-Min Su
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, PR China
| | - Shan-Shan Zhang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, PR China
| | - Lei Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, PR China
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS-UMR 7177, 4 rue Blaise Pascal, Strasbourg CEDEX 67008, France
| | - Zvonko Jagličić
- Faculty of Civil and Geodetic Engineering & Institute of Mathematics, Physics and Mechanics, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia
| | - Di Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, PR China
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, PR China
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8
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Casas JM, Diosdado BE, Forniés J, García-Monforte MÁ, Laporta R, Martín A, Tomás M. Synthesis and characterization of binuclear Pt(IV) complexes and tetranuclear mixed valence complexes of Platinum(II)-Platinum(IV). J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.06.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Yoshida T, Takaishi S, Kumagai S, Iguchi H, Mian MR, Yamashita M. Observation of charge bistability in quasi-one-dimensional halogen-bridged palladium complexes by X-ray absorption spectroscopy. Dalton Trans 2019; 48:11628-11631. [PMID: 31241098 DOI: 10.1039/c9dt01684h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We performed X-ray absorption fine structure (XAFS) measurements on three representative bromo-bridged palladium compounds. In the X-ray absorption near-edge structure (XANES) spectra, the averaged-valence (AV) compound, [Pd3+(dabdOH)2Br]Br2 (1: dabdOH = (2S,3S)-2,3-diaminobutane-1,4-diol), and the mixed-valence (MV) compound, [Pd2+(en)2][Pd4+(en)2Br2](ReO4)4 (2), showed significant differences in their spectra. In [Pd(en)2Br](Suc-C5)2·H2O (3: en = ethylenediamine, Suc-C5 = dipentylsulfosuccinate), which exhibits an MV-AV phase transition, on the other hand, the spectroscopic difference between below and above the phase transition temperature was hardly observed due to the subtle difference in the oxidation states. In the extended X-ray absorption fine structure (EXAFS) spectra, a clear difference in the Pd-Br correlation region was observed upon the phase transition.
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Affiliation(s)
- Takefumi Yoshida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Sendai 980-8578, Japan.
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10
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Kumagai S, Takaishi S, Gao M, Iguchi H, Breedlove BK, Yamashita M. MX-Chain Compounds with ReO4 Counterions: Exploration of the Robin–Day Class I–II Boundary. Inorg Chem 2018. [DOI: 10.1021/acs.inorgchem.7b03051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shohei Kumagai
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8578 Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8578 Japan
| | - Mengqi Gao
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8578 Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8578 Japan
| | - Brian K. Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8578 Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-8578 Japan
- Advanced Institute of Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 Japan
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350 China
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11
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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
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12
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Kumagai S, Takaishi S, Iguchi H, Breedlove BK, Kaneko T, Ito H, Kuroda SI, Yamashita M. Correlation between Chemical and Physical Pressures on Charge Bistability in [Pd(en) 2Br](Suc-C n) 2·H 2O. Inorg Chem 2018; 57:12-15. [PMID: 29227105 DOI: 10.1021/acs.inorgchem.7b02566] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrostatic (physical) pressure effects on the electrical resistivity of a bromido-bridged palladium compound, [Pd(en)2Br](Suc-C5)2·H2O, were studied. The charge-density-wave to Mott-Hubbard phase transition temperature (TPT) steadily increased with pressure. By a comparison of the effects of the chemical and physical pressures on TPT, it was estimated that the chemical pressure by unit alkyl chain length, i.e., the number of carbon atoms in the alkyl chains within the counterion, corresponded to ca. 1.3 kbar of the physical pressure.
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Affiliation(s)
- Shohei Kumagai
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Brian K Breedlove
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Takuya Kaneko
- Department of Applied Physics, Graduate School of Engineering, Nagoya University , Chikusa Ward, Furocho, Nagoya 464-0814, Japan
| | - Hiroshi Ito
- Department of Applied Physics, Graduate School of Engineering, Nagoya University , Chikusa Ward, Furocho, Nagoya 464-0814, Japan
| | - Shin-Ichi Kuroda
- Department of Applied Physics, Graduate School of Engineering, Nagoya University , Chikusa Ward, Furocho, Nagoya 464-0814, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.,Advanced Institute of Materials Research, Tohoku University , 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.,School of Materials Science and Engineering, Nankai University , Tianjin 300350, China
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13
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Guseva EV, Buslaeva TM, Polovnyak VK. Rhodium complexation with phosphoryl-containing calix[4]resorcine. RUSS J INORG CHEM+ 2016. [DOI: 10.1134/s0036023616110085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Guseva EV, Buslaeva TM, Grishin EI. Complexation of dirhodium(II) with N-functionalized calix[4]resorcinarenes. Russ Chem Bull 2016. [DOI: 10.1007/s11172-016-1611-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Yang D, Xu P, Guan E, Browning ND, Gates BC. Rhodium pair-sites on magnesium oxide: Synthesis, characterization, and catalysis of ethylene hydrogenation. J Catal 2016. [DOI: 10.1016/j.jcat.2016.02.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Yoshida T, Takaishi S, Iguchi H, Okamoto H, Tanaka H, Kuroda SI, Hosomi Y, Yoshida S, Shigekawa H, Kojima T, Ohtsu H, Kawano M, Breedlove BK, Guérin L, Yamashita M. Optically Visible Phase Separation between Mott-Hubbard and Charge-Density-Wave Domains in a Pd-Br Chain Complex. ChemistrySelect 2016. [DOI: 10.1002/slct.201600065] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takefumi Yoshida
- Department of Chemistry, Graduate School of Science; Tohoku University; 6-3 Aza-aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research; Tohoku University; 2-1-1 Katahira Sendai 980-8577 Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science; Tohoku University; 6-3 Aza-aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research; Tohoku University; 2-1-1 Katahira Sendai 980-8577 Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science; Tohoku University; 6-3 Aza-aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research; Tohoku University; 2-1-1 Katahira Sendai 980-8577 Japan
| | - Hiroshi Okamoto
- Department of Advanced Materials 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, Furocho, Chikusa-ku; Nagoya 464-8603 Japan
| | - Shin-ichi Kuroda
- Department of Applied Physics, Graduate School of Engineering; Nagoya University, Furocho, Chikusa-ku; Nagoya 464-8603 Japan
| | - Yuka Hosomi
- Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba 305-8573 Japan
| | - Shoji Yoshida
- Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba 305-8573 Japan
| | - Hidemi Shigekawa
- Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba 305-8573 Japan
| | - Tatsuhiro Kojima
- Division of Advanced Materials Science; Pohang University of Science and Technology (POSTECH); RIST Building 3-3390, 77 Cheongam-Ro, Nam-Gu, Pohang Gyeongbuk 790-784 South Korea
| | - Hiroyoshi Ohtsu
- Division of Advanced Materials Science; Pohang University of Science and Technology (POSTECH); RIST Building 3-3390, 77 Cheongam-Ro, Nam-Gu, Pohang Gyeongbuk 790-784 South Korea
| | - Masaki Kawano
- Division of Advanced Materials Science; Pohang University of Science and Technology (POSTECH); RIST Building 3-3390, 77 Cheongam-Ro, Nam-Gu, Pohang Gyeongbuk 790-784 South Korea
| | - Brian K. Breedlove
- Department of Chemistry, Graduate School of Science; Tohoku University; 6-3 Aza-aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research; Tohoku University; 2-1-1 Katahira Sendai 980-8577 Japan
| | - Laurent Guérin
- Université de Rennes 1; Institut de Physique de Rennes; 263 Av. du Général Leclerc 35042 Rennes cedex France
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science; Tohoku University; 6-3 Aza-aoba, Aramaki Sendai 980-8578 Japan
- WPI-Advanced Institute for Materials Research; Tohoku University; 2-1-1 Katahira Sendai 980-8577 Japan
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17
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Bruns J, Niehaus O, Pöttgen R, Wickleder MS. Cracking the Dumbbell - from (NO)4[Pt2(SO4)5] to (NO)2[Pt(S2O7)3] by Oxidation with SO3. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Kumagai S, Takaishi S, Iguchi H, Yamashita M. Charge-bistable Pd(iii)/Pd(ii,iv) coordination polymers: phase transitions and their applications to optical properties. Dalton Trans 2015; 44:8590-9. [DOI: 10.1039/c5dt00439j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reviews the recent progress in charge-bistable Pd(iii)/Pd(ii,iv) coordination polymers (MX chains). The temperature-, pressure- and photo-induced phase transitions have been demonstrated, proposing MX chains as a material for optical switching devices.
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Affiliation(s)
- Shohei Kumagai
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Shinya Takaishi
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Hiroaki Iguchi
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
| | - Masahiro Yamashita
- Department of Chemistry
- Graduate School of Science
- Tohoku University
- Sendai 980-8578
- Japan
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19
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Kumagai S, Iguchi H, Takaishi S, Breedlove BK, Yamashita M, Matsuzaki H, Okamoto H, Kato K, Takata M. Continuous Control of Optical Gaps in Quasi-One-Dimensional Bromide-Bridged Platinum Complexes by Utilizing Chemical Pressure. Inorg Chem 2014; 53:11764-9. [DOI: 10.1021/ic502071u] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shohei Kumagai
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
- WPI-Advanced Institute
for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Brian K. Breedlove
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki,
Aoba-ku, Sendai, Miyagi 980-8578, Japan
- WPI-Advanced Institute
for Materials Research, Tohoku University, 2-1-1 Katahira,
Aoba-ku, Sendai, Miyagi 980-8577, Japan
- CREST, JST, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Hiroyuki Matsuzaki
- Department of Advanced Material Science, Graduate School
of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Hiroshi Okamoto
- Department of Advanced Material Science, Graduate School
of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Kenichi Kato
- RIKEN SPring-8 Center, Sayo-gun, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Sayo-gun, Hyogo 679-5198, Japan
| | - Masaki Takata
- RIKEN SPring-8 Center, Sayo-gun, Hyogo 679-5148, Japan
- Japan Synchrotron Radiation Research Institute, Sayo-gun, Hyogo 679-5198, Japan
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20
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Bruns J, Klüner T, Wickleder MS. Oxidizing Elemental Platinum with Oleum under Harsh Conditions: The Unique Tris(disulfato)platinate(IV) [Pt(S2O7)3]2−Anion. Chemistry 2014; 20:7222-7. [DOI: 10.1002/chem.201402086] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Indexed: 11/06/2022]
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21
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Clark RJH. Rayleigh, Ramsay, Rutherford and Raman – their connections with, and contributions to, the discovery of the Raman effect. Analyst 2013; 138:729-34. [DOI: 10.1039/c2an90124b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Shin M, Takaishi S, Kumagai S, Ueda Y, Breedlove BK, Matsuzaki H, Okamoto H, Wakabayashi Y, Yamashita M. Smallest optical gap for quasi-one-dimensional iodo-bridged platinum compounds. Dalton Trans 2013; 42:6277-80. [DOI: 10.1039/c3dt32890b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Givaja G, Castillo O, Mateo E, Gallego A, Gómez-García CJ, Calzolari A, di Felice R, Zamora F. Electrical Behaviour of Heterobimetallic [MM′(EtCS2)4] (MM′=NiPd, NiPt, PdPt) and MM′X-Chain Polymers [PtM(EtCS2)4I] (M=Ni, Pd). Chemistry 2012; 18:15476-84. [DOI: 10.1002/chem.201200995] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Indexed: 11/07/2022]
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24
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Iguchi H, Takaishi S, Breedlove BK, Yamashita M, Matsuzaki H, Okamoto H. Controlling the electronic states and physical properties of MMX-type diplatinum-iodide chain complexes via binary countercations. Inorg Chem 2012; 51:9967-77. [PMID: 22946488 DOI: 10.1021/ic301469u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
MMX-type quasi-one-dimensional iodide-bridged dinuclear Pt complexes (MMX chains) with binary countercations show a new alternating charge-polarization + charge-density-wave (ACP+CDW) electronic state and reversible switching of the electronic states and physical properties upon dehydration and rehydration process. By comparing several MMX chains with various binary countercations with previous chains, we found that the short backbone of the aliphatic diammonium ion was indispensable for realizing the ACP+CDW state because it induces a 2-fold periodicity along the chain axis via twisting of the ligands. Moreover, the reversibility of the changes in the structure and electrical conductivity upon dehydration and rehydration depend on the length of aliphatic diammonium ion. Short diammonium ions support a robust framework, which undergoes reversible structural changes. On the other hand, long and bent aliphatic diammonium ions weaken the framework, which causes partial degradation of the crystal and a decrease in the electrical conductivity when the structure changes. However, the decrease in the activation energy of the electrical conductivity after the dehydration process is independent of the robustness of the complex, indicating that the orbital overlap in MMX chains with binary countercations increases upon dehydration. Controllable electronic states and physical properties provide a platform for designing the multifunctional materials based on MMX chains.
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Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan.
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25
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Neuschulz K, Penning M, Gross L, Klüner T, Wickleder MS. Opening the paddlewheel: unusual coordination of [Mo2] dumbbells in the chain structures of A[Mo2(CF3SO3)5]·2CF3SO3H (A = Na, Rb, Cs). Dalton Trans 2012; 41:4685-91. [PMID: 22382576 DOI: 10.1039/c2dt12196d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of Mo(II)acetate, concentrated triflic acid and the alkaline metal triflates A(CF(3)SO(3)) (A = Na, Rb, Cs) in sealed glass ampoules at 110 °C yielded red single crystals of A[Mo(2)(CF(3)SO(3))(5)]·2CF(3)SO(3)H (A = Na: triclinic, P-1, Z = 4, a = 13.714(1) Å, b = 14.339(1) Å, c = 21.340(2) Å, α = 81.78(1)°, β = 75.21(1)°, γ = 62.65(1)°; A = Rb/Cs: monoclinic, P2(1)/m, Z = 2, a = 11.561(1)/11.584(1) Å, b = 14.817(1)/14.9472(8) Å, c = 11.6208(1)/11.744(1) Å, β = 112.38(1)/113.48(1)°). The crystal structures contain dumbbell shaped [Mo(2)] moieties surrounded by three chelating and four monodentate triflate anions leading to an opening of the typical paddlewheel fragment at one of its edges. The monodentate triflate anions are connected to further [Mo(2)] dumbbells leading to infinite anionic chains according to (∞)(1)[Mo(2)(CF(3)SO(3))(3/1)(CF(3)SO(3))(4/2)](-). The charge balance is achieved by the alkaline metal ions that are additionally coordinated by triflic acid molecules. Theoretical investigations were preformed on the open paddlewheel fragment and are in good agreement with the experimental findings. According to DTA/TG measurements and the XRD investigations the decomposition of the compounds occurs in multiple steps and leads to MoO(2) and A(2)MoO(4).
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Affiliation(s)
- Kai Neuschulz
- Institut für Reine und Angewandte Chemie, Carl von Ossietzky-Universität Oldenburg, D-26111 Oldenburg, Germany
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Takaishi S. Exploration of Boundary between Charge-Density-Wave and Mott–Hubbard States in Quasi-One-Dimensional Halogen-Bridged Metal Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2012. [DOI: 10.1246/bcsj.20110199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University
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27
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Takaishi S, Wu H, Kajiwara T, Breedlove BK, Miyasaka H, Yamashita M. Real time and space observation of domain wall migration in a MX-chain complex with a quasi-2D CDW state by using STM. Dalton Trans 2011; 40:2160-2. [DOI: 10.1039/c0dt01051k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Yamashita M, Takaishi S. Stabilization of Pd(III) states in nano-wire coordination complexes. Chem Commun (Camb) 2010; 46:4438-48. [PMID: 20485765 DOI: 10.1039/c002097d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In spite of a long history of quasi-one-dimensional halogen-bridged complexes (MX-chains), all Pt and Pd complexes form the charge-density wave (CDW) state (-X...M(II)...X-M(IV)-X...), while all Ni complexes form Mott-Hubbard (MH) states (-X-Ni(III)-X-Ni(III)-X-), without exception. We have succeeded in stabilizing the Pd(iii) MH state for the first time by utilizing the following two methods: partial substitution with Ni(iii) ions, [Ni(1-x)Pd(x)(chxn)(2)Br]Br(2), and chemical pressure via long alkyl chains introduced as counter-anions, [Pd(en)(2)Br](C(n)-Y)(2).H(2)O. In both systems, it has been revealed that the electronic state of bromo-bridged Pd compounds are determined by the PdPd distances, in other words, CDW and MH states are stabilized when PdPd distances are longer and shorter than 5.26 A, respectively.
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Affiliation(s)
- Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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29
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Takaishi S, Wu H, Xie J, Kajiwara T, Breedlove BK, Miyasaka H, Yamashita M. Structural study of electronic states in quasi-one-dimensional halogen-bridged mixed-metal complexes [Ni(1-x)Pd(x)(chxn)(2)Br]Br(2). Inorg Chem 2010; 49:3694-6. [PMID: 20230015 DOI: 10.1021/ic1001368] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electronic structures of quasi-one-dimensional halogen-bridged mixed-metal compounds [Ni(1-x)Pd(x)(chxn)(2)Br]Br(2) were investigated by means of powder X-ray diffraction measurements. Unit cell lengths of all directions obeyed a linear relationship when x < 0.9, whereas those deviated when x > 0.9 especially in the case of the b and c axes. This deviation can be explained by a phase change from an M(III) Mott-Hubbard state to an M(II)-M(IV) charge-density-wave state because of chemical pressure caused by the substitution of Pd ions into [Pd(chxn)(2)Br]Br(2) with smaller Ni ions.
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Affiliation(s)
- Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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30
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Burgio L, Clark RJH, Hark RR. Raman microscopy and x-ray fluorescence analysis of pigments on medieval and Renaissance Italian manuscript cuttings. Proc Natl Acad Sci U S A 2010; 107:5726-31. [PMID: 20304797 PMCID: PMC2851883 DOI: 10.1073/pnas.0914797107] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Italian medieval and Renaissance manuscript cuttings and miniatures from the Victoria and Albert Museum were analyzed by Raman microscopy to compile a database of pigments used in different periods and different Italian regions. The palette identified in most manuscripts and cuttings was found to include lead white, gypsum, azurite, lazurite, indigo, malachite, vermilion, red lead, lead tin yellow (I), goethite, carbon, and iron gall ink. A few of the miniatures, such as the historiated capital "M" painted by Gerolamo da Cremona and the Petrarca manuscript by Bartolomeo Sanvito, are of exceptional quality and were analyzed extensively; some contained unusual materials. The widespread usage of iron oxides such as goethite and hematite as minor components of mixtures with azurite is particularly notable. The use of a needle-shaped form of iron gall ink as a pigment rather than a writing material was established by both Raman microscopy and x-ray fluorescence spectroscopy for the Madonna and Child by Franco de' Russi.
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Affiliation(s)
- Lucia Burgio
- Victoria and Albert Museum, South Kensington, London SW7 2RL, United Kingdom
- Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom; and
| | - Robin J. H. Clark
- Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom; and
| | - Richard R. Hark
- Department of Chemistry, Juniata College, Huntingdon, PA 16652
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31
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Sasaki M, Wu H, Kawakami D, Takaishi S, Kajiwara T, Miyasaka H, Breedlove BK, Yamashita M, Kishida H, Matsuzaki H, Okamoto H, Tanaka H, Kuroda S. Effect of an in-plane ligand on the electronic structures of bromo-bridged nano-wire Ni-Pd mixed-metal complexes, [Ni(1-x)Pd(x)(bn)2Br]Br2 (bn = 2S,3S-diaminobutane). Inorg Chem 2009; 48:7446-51. [PMID: 19586022 DOI: 10.1021/ic901067z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Single crystals of quasi-one-dimensional bromo-bridged Ni-Pd mixed-metal complexes with 2S,3S-diaminobutane (bn) as an in-plane ligand, [Ni(1-x)Pd(x)(bn)(2)Br]Br(2), were obtained by using an electrochemical oxidation method involving mixed methanol/2-propanol (1:1) solutions containing different ratios of [Ni(II)(bn)(2)]Br(2) and [Pd(II)(bn)(2)]Br(2). To investigate the competition between the electron-correlation of the Ni(III) states, or Mott-Hubbard states (MH), and the electron-phonon interaction of the Pd(II)-Pd(IV) mixed valence states, or charge-density-wave states (CDW), in the Ni-Pd mixed-metal compounds, X-ray structure analyses, X-ray oscillation photograph, and Raman, IR, ESR, and single-crystal reflectance spectra were analyzed. In addition, the local electronic structures of Ni-Pd mixed-metal single crystals were directly investigated by using scanning tunneling microscopy (STM) at room temperature and ambient pressure. The oxidation states of [Ni(1-x)Pd(x)(bn)(2)Br]Br(2) changed from a M(II)-M(IV) mixed valence state to a M(III) MH state at a critical mixing ratio (x(c)) of approximately 0.8, which is lower than that of [Ni(1-x)Pd(x)(chxn)(2)Br]Br(2) (chxn = 1R,2R-diaminocyclohexane) (x(c) approximately 0.9) reported previously. The lower value of x(c) for [Ni(1-x)Pd(x)(bn)(2)Br]Br(2) can be explained by the difference in their CDW dimensionalities because the three-dimensional CDW ordering in [Pd(bn)(2)Br]Br(2) observed by using X-ray diffuse scattering stabilizes the Pd(II)-Pd(IV) mixed valence state more than two-dimensional CDW ordering in [Pd(chxn)(2)Br]Br(2) does, which has been reported previously.
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Affiliation(s)
- Mari Sasaki
- Graduate School of Science, Tohoku University, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan
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32
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Mitsumi M, Yoshida Y, Kohyama A, Kitagawa Y, Ozawa Y, Kobayashi M, Toriumi K, Tadokoro M, Ikeda N, Okumura M, Kurmoo M. Syntheses, Structures and Solid-State Properties of MMX Mixed-Valence Chains, [NiII/III2(RCS2)4I]∞ (R = Et, n-Pr and n-Bu): Evidence of a Spin-Peierls Transition. Inorg Chem 2009; 48:6680-91. [DOI: 10.1021/ic900630a] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Minoru Mitsumi
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Yuji Yoshida
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Akihisa Kohyama
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Yasutaka Kitagawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yoshiki Ozawa
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Mototada Kobayashi
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Koshiro Toriumi
- Department of Material Science, Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Makoto Tadokoro
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Naoshi Ikeda
- Japan Synchrotron Radiation Research Institute,1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Mitsutaka Okumura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Mohamedally Kurmoo
- Laboratoire de Chimie de Coordination Organique, CNRS-UMR 7140, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
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Burgio L, Clark RJH, Hark RR, Rumsey MS, Zannini C. Spectroscopic investigations of Bourdichon miniatures: masterpieces of light and color. APPLIED SPECTROSCOPY 2009; 63:611-620. [PMID: 19531288 DOI: 10.1366/000370209788559593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Metallic bismuth, pyrite (FeS2), and specular hematite (Fe2O3) were found to have been used extensively on two miniatures taken from the Book of Hours of Louis XII by Jean Bourdichon, painter at the Royal Court of France between the end of the 15th and the beginning of the 16th centuries. These unusual materials were identified, together with thirteen other more traditional pigments and dyes, by Raman microscopy and X-ray fluorescence. Pyrite was found in many areas, suggesting that it may have been deliberately added as a pigment. The luminary quality of both miniatures was enhanced by the extensive use of shell gold throughout, but other less common materials such as specular hematite and mosaic gold were also utilized. Metallic bismuth was used, alone or in admixture with other pigments, to create a soft gray color. Its identification as a paint material was complemented by the study of the optical and visual properties of standard samples of metallic bismuth and several bismuth compounds. Evidence for the use of a bismuth pencil was also found.
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Affiliation(s)
- Lucia Burgio
- Victoria and Albert Museum, Science Section, Conservation Department, London SW7 2RL, UK.
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34
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Takaishi S, Takamura M, Kajiwara T, Miyasaka H, Yamashita M, Iwata M, Matsuzaki H, Okamoto H, Tanaka H, Kuroda SI, Nishikawa H, Oshio H, Kato K, Takata M. Charge-Density-Wave to Mott−Hubbard Phase Transition in Quasi-One-Dimensional Bromo-Bridged Pd Compounds. J Am Chem Soc 2008; 130:12080-4. [DOI: 10.1021/ja8032026] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Mitsuhito Takamura
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Takashi Kajiwara
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Hitoshi Miyasaka
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Muneaki Iwata
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Hiroyuki Matsuzaki
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Hiroshi Okamoto
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Hisaaki Tanaka
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Shin-ichi Kuroda
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Hiroyuki Nishikawa
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Hiroki Oshio
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Kenichi Kato
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
| | - Masaki Takata
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan, Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan, Department of Applied Physics, Graduate School of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan, Department of Chemistry, The University of Tsukuba, 1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan, RIKEN SPring-8 Center, 1-1-1
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35
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Takaishi S, Yamashita M. One-dimensional Halogen-bridged NiIIICompounds: Chemistry and Physics in Strongly Correlated Electron Systems. CHEM LETT 2008. [DOI: 10.1246/cl.2008.382] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Day P, Hush NS, Clark RJH. Mixed valence: origins and developments. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2008; 366:5-14. [PMID: 17827130 DOI: 10.1098/rsta.2007.2135] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Mixed-valence compounds were recognized by chemists more than a century ago for their unusual colours and stoichiometries, but it was just 40 years ago that two seminal articles brought together the then available evidence. These articles laid the foundations for understanding the physical properties of such compounds and how the latter correlate with molecular and crystal structures. This introduction to a discussion meeting briefly surveys the history of mixed valence and sets in context contributions to the discussion describing current work in the field.
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Affiliation(s)
- Peter Day
- Davy Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, UK
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37
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Takaishi S, Yamashita M. Solitons, polarons and their dynamics in mixed-valence halogen-bridged MX-chains. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2008; 366:93-100. [PMID: 17827123 DOI: 10.1098/rsta.2007.2142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
This article describes the photo-generation processes of elementary excitations such as solitons and polarons, and their dynamics in the one-dimensional (1D) halogen-bridged Pt compound [Pt(en)2Br](ClO4)2. Spin-solitons were photo-generated via relaxation processes of CT excitons and self-trapped excitons, made evident by photo-induced absorption and photo-induced electron spin resonance spectra. Polarons were not generated from CT excitons. Diffusion of spin-solitons on the 1D chain was studied quantitatively by analysing 1H NMR spin-lattice relaxation times (T1).
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Affiliation(s)
- Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University and CREST(JST), 6-3 Aramaki-Aza-aoba, Aoba-ku, Sendai 980-8578, Japan.
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38
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Takaishi S, Yamashita M, Matsuzaki H, Okamoto H, Tanaka H, Kuroda SI, Goto A, Shimizu T, Takenobu T, Iwasa Y. One-Dimensional Bromo-Bridged NiIII Complexes [Ni(S,S-bn)2Br]Br2 (S,S-bn=2S,3S-diaminobutane): Synthesis, Physical Properties, and Electrostatic Carrier Doping. Chemistry 2008; 14:472-7. [DOI: 10.1002/chem.200701299] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Chisholm MH. Metal to metal multiple bonds in ordered assemblies. Proc Natl Acad Sci U S A 2007; 104:2563-70. [PMID: 17299047 PMCID: PMC1815223 DOI: 10.1073/pnas.0610364104] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Indexed: 11/18/2022] Open
Abstract
The synthesis and properties of metal-metal (MM) quadruply bonded compounds of molybdenum and tungsten in liquid crystalline phases are described. Covalently linked MM quadruply bonded complexes, dimers of dimers, are shown to give rise to mixed valence complexes upon oxidation and the degree of electron delocalization is shown to be correlated with the M(2)delta bridge pi interactions. Class III behavior or complete delocalization is observed to M(2) to M(2) distances of up to 14 A. When the M(2) unit is attached to oligothiophenes via a carboxylate tether, the photophysical properties of the thienyl units are greatly modified due to M(2)delta-thienyl pi conjugation and spin-orbit coupling. This leads to long-lived emissive states and electroluminescence in solid-state devices.
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Affiliation(s)
- Malcolm H Chisholm
- Newman-Wolfrom Chemical Laboratories, Ohio State University, Columbus, OH 43210, USA.
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40
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Robert V. A vibronic approach to the band-filling and temperature-dependent metal-insulator transition. J Chem Phys 2006; 121:4297-301. [PMID: 15332978 DOI: 10.1063/1.1775769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A model of vibronic origin is used to investigate the important issue of metal-insulator transition in low-dimensional materials. For zero temperature, the stability of the single-band model chain is controlled by the competition between the internal electron-phonon coupling and the nearest-neighbor hopping integral. Assuming one particular deformation mode, one can analytically derive an instability criterion in which the band filling is explicitly included. The carrier doping directly controls the stability of a one-dimensional chain. For a half-filled band, the Peierls instability is recovered. For finite temperatures, a similar criterion is derived and can be used to investigate the metal-insulator transition temperatures.
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Affiliation(s)
- Vincent Robert
- Laboratoire de Chimie, UMR 5182 Ecole normale superieure de Lyon, 46 allee d'Italie, 69364 Lyon Cedex 07, France.
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41
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Umakoshi K, Kojima T, Kim YH, Onishi M, Nakao Y, Sakaki S. Deep Blue Mixed-Valent PtIIIPtIIIPtII Complex [Pt3Br2(μ-pz)6] (pz=Pyrazolate) Showing Valence-Detrapping Behavior in Solution. Chemistry 2006; 12:6521-7. [PMID: 16800011 DOI: 10.1002/chem.200600649] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The oxidation of the pyrazolate bridged cyclic PtII trimer, [Pt3(mu-pz)6] (1), in the presence of bromide ion gave a deep blue mixed-valent Pt(II,III,III) complex, [Pt3Br2(mu-pz)6] (2). The structural analysis of 2 disclosed that the complex has localized Pt--Pt bond. Our theoretical calculations revealed that the HOMO and LUMO of Pt3 (II,III,III) species mainly consists of (dsigma-dsigma) and (dsigma-dsigma)* orbitals, respectively, and the origin of deep blue color of the bromo complex, 2, arises from the (dsigma-dsigma)-->(dsigma-dsigma)* transition. Unique fluxional behavior was observed due to valence-detrapping of 2 in solution. The activation parameters of the valence-detrapping of 2 obtained by Eyring analyses were DeltaH(not equal)=37(2) kJ mol(-1) and DeltaS(not equal)=-67(7) J mol(-1) K(-1).
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Affiliation(s)
- Keisuke Umakoshi
- Department of Applied Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi, Nagasaki 852-8521, Japan.
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42
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Pley M, Wickleder M. Monomers, Chains and Layers of [Pt2(SO4)4] Units in the Crystal Structures of the Platinum(III) Sulfates (NH4)2[Pt2(SO4)4(H2O)2], K4[Pt2(SO4)5] and Cs[Pt2(SO4)3(HSO4)]. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200400755] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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43
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Berry JF, Cotton FA, Daniels LM, Murillo CA, Wang X. Oxidation of Ni3(dpa)4Cl2 and Cu3(dpa)4Cl2: nickel-nickel bonding interaction, but no copper-copper bonds. Inorg Chem 2003; 42:2418-27. [PMID: 12665379 DOI: 10.1021/ic0262740] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Of the known trinuclear dipyridylamido complexes of the first-row transition metals, M(3)(dpa)(4)Cl(2) (dpa is the anion of di(2-pyridyl)amine, M = Cr, Co, Ni, Cu), the one-electron-oxidation products of only Cr(3)(dpa)(4)Cl(2) and Co(3)(dpa)(4)Cl(2) have been isolated previously. Here we report one-electron-oxidation products of Ni(3)(dpa)(4)Cl(2) (1) and Cu(3)(dpa)(4)Cl(2) (3): Ni(3)(dpa)(4)(PF(6))(3) (2) and [Cu(3)(dpa)(4)Cl(2)]SbCl(6) (4). While there are no Ni-Ni bonds in 1, the Ni-Ni distances in 2 are 0.15 A shorter than those in 1, very suggestive of metal-metal bonding interactions. In contrast, the oxidation of 3 to 4 is accompanied by a lengthening of the Cu-Cu distances, as expected for an increase in electrostatic charge between positively charged nonbonded metal ions, which is further evidence against Cu-Cu bonding in either 3 or 4. A qualitative model of the electronic structures of all [M(3)(dpa)(4)Cl(2)](n+) (n = 0, 1) compounds is presented and discussed.
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Affiliation(s)
- John F Berry
- Department of Chemistry and Laboratory for Molecular Structure and Bonding, PO Box 30012, Texas A&M University, College Station, Texas 77842-3012, USA
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44
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Kojima N. Gold Valence Transition and Phase Diagram in the Mixed-Valence Complexes, M2[AuIX2][AuIIIX4] (M = Rb, Cs; X = Cl, Br, and I). BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2000. [DOI: 10.1246/bcsj.73.1445] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Yamashita M, Ishii T, Matsuzaka H, Manabe T, Kawashima T, Okamoto H, Kitagawa H, Mitani T, Marumoto K, Kuroda Si SI. Tuning of Charge Density Wave Strengths by Competition between Electron-Phonon Interaction of Pd(II)-Pd(IV) Mixed-Valence States and Electron Correlation of Ni(III) States in Quasi-One-Dimensional Bromo-Bridged Ni-Pd Mixed-Metal MX Chain Compounds Ni(1)(-)(x)()Pd(x)()(chxn)(2)Br(3). Inorg Chem 1999; 38:5124-5130. [PMID: 11671259 DOI: 10.1021/ic990219i] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of single crystals of quasi-one-dimensional bromo-bridged Ni-Pd mixed-metal MX chain compounds Ni(1)(-)(x)()Pd(x)()(chxn)(2)Br(3) (chxn = 1(R),2(R)-diaminocyclohexane) have been obtained by electrochemical oxidation methods of the mixed methanol solutions of parent Ni(II) complex [Ni(chxn)(2)]Br(2) and Pd(II) complex [Pd(chxn)(2)]Br(2) with various mixing ratios. To investigate the competition between the electron correlation of the Ni(III) states (or spin density wave states) and the electron-phonon interaction of the Pd(II)-Pd(IV) mixed-valence states (or charge density wave states) in the Ni-Pd mixed-metal compounds, IR, Raman, ESR, XP, and Auger spectra have been measured. The IR, resonance Raman, XP, and Auger spectra show that the Pd(II)-Pd(IV) mixed-valence states are influenced and gradually approach the Pd(III) states with the increase of the Ni(III) components. This means that in these compounds the electron-phonon interaction in the Pd(II)-Pd(IV) mixed-valence states is weakened with the strong electron correlation in the Ni(III) states.
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Affiliation(s)
- Masahiro Yamashita
- Graduate School of Science & PRESTO (JST), Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397, Japan, Graduate School of Human Informatics, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan, Department of Applied Physics & PRESTO (JST), The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, Japan Advanced Institute for Science and Technology, Ishikawa 923-1292, Japan, and Department of Applied Physics, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
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46
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Yamashita M, Manabe T, Inoue K, Kawashima T, Okamoto H, Kitagawa H, Mitani T, Toriumi K, Miyamae H, Ikeda R. Tuning of Spin Density Wave Strengths in Quasi-One-Dimensional Halogen-Bridged Ni(III) Complexes with Strong Electron Correlations, [Ni(III)(chxn)(2)X]Y(2). Inorg Chem 1999; 38:1894-1899. [PMID: 11670963 DOI: 10.1021/ic9812499] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of quasi-one-dimensional halogen-bridged Ni(III) complexes, [Ni(chxn)(2)X]Y(2) (chxn = 1R,2R-diaminocyclohexane; X = Cl, Br, and mixed halides; Y = Cl, Br, mixed halides, NO(3), BF(4), and ClO(4)) have been synthesized in order to investigate the effect of the bridging halogens and counteranions on their crystal, electronic structures, and moreover the spin density wave strengths. In the crystal structures, the [Ni(chxn)(2)] moieties are symmetrically bridged by halogen ions, forming linear-chain Ni(III)-X-Ni(III) structures. The hydrogen bonds between the aminohydrogens of chxn and the counteranions are constructed not only along the chains but also over the chains, forming the two-dimensional hydrogen-bond networks. While the Ni(III)-X-Ni(III) distances or b axes are almost constant in the compounds with the same bridging halogens, the c axes which correspond to the interchain distances in the directions of the interchain hydrogen bonds are remarkably lengthened with the increase of the ionic radius of the counterions; X < NO(3) < BF(4) < ClO(4). These compounds show the very strong antiferromagnetic interactions among spins on Ni 3d(z)2 orbitals through the superexchange mechanisms via the bridging halogen ions. Judging from the results of X-ray photoelectron spectra (XPS), Auger spectra, and single-crystal reflectance spectra, these Ni compounds are not Mott-insulators but charge-transfer-insulators. Their electronic structures or the spin density wave strengths are found to be tuned by the combinations of the counteranions and the bridging halogens.
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Affiliation(s)
- Masahiro Yamashita
- Graduate School of Human Informatics and PRESTO (JST), Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan, Department of Applied Physics, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, Japan Advanced Institute for Science and Technology, Ishikawa 923-1292, Japan, Faculty of Science, Himeji Institute of Technology, Hyogo 678-12, Japan, Department of Chemistry, Jyosai University, Saitama 350-02, Japan, and Department of Chemistry, University of Tsukuba, Tsukuba 305-8571, Japan
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47
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Lippert B. Impact of Cisplatin on the recent development of Pt coordination chemistry: a case study. Coord Chem Rev 1999. [DOI: 10.1016/s0010-8545(98)00192-1] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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48
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Kimizuka N, Oda N, Kunitake T. Supramolecular Assemblies Comprised of One-Dimensional Mixed Valence Platinum Complex and Anionic Amphiphiles in Organic Media. CHEM LETT 1998. [DOI: 10.1246/cl.1998.695] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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49
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Unique complexation by the tridentate ligands, 6-diphenylphosphino-2-pyridonate (pyphos) and 6-diphenylphosphino-2-pyridone (pyphosH), on ruthenium(II): Crystal structures of (pyphosH)RuCl(μ-Cl)Mo2Cl(pyphos)3, RuCl2(CO)(pyphosH)2, [Ru(pyphos)3](μ-Na)2[Ru(pyphos)3]. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)06003-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Barrie PJ, Austin EJ, Barbieri A, Clark RJ. 15N solid-state NMR studies of platinum ammine complexes. Inorganica Chim Acta 1997. [DOI: 10.1016/s0020-1693(97)05599-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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