Low-temperature X-ray single-crystal analysis of a conductive mixed-valence MMX-chain system, Pt2(dta)4I (dta = CH3CS2-)

被引：11
作者：
Kitagawa, H
Nakagami, S
Mitani, T
机构：
[1] Univ Tsukuba, Dept Chem, Tsukuba, Ibaraki 3058571, Japan
[2] Japan Adv Inst Sci & Technol, Tatsunokuchi, Ishikawa 9231292, Japan
来源：
SYNTHETIC METALS | 2001年 / 116卷 / 1-3期
关键词：
MX chain; mixed valence; molecular conductor; metal-insulator transition; X-ray single-crystal analysis;
D O I：
10.1016/S0379-6779(00)00446-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The one-dimensional (1-D) chain structure of the title compound (Pt-2(dta)(4)I) (dia = CH3CS2-) has been investigated by X-ray single-crystal analysis at low temperatures. An anomalous behavior was observed for the temperature dependence of the lattice constant a (perpendicular to chain). Below 90 K, a slight increase of the beta value was observed, which might relate to the expected spin-Peierls distortion associated with dta-ligand twisting. A little difference in Pt-I distances was observed at 16 K. No obvious superstructure reflections were observed at low temperatures. (C) 2001 Elsevier Science B.V. All rights reserved.
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收藏
页码：401 / 404
页数：4
相关论文
共 20 条
[11]   Mixed-valence states in MMX-chains complex, Pt-2(dta)(4)I [J].
Kitagawa, H ;
Onodera, N ;
Ahn, JS ;
Mitani, T ;
Kim, M ;
Ozawa, Y ;
Toriumi, K ;
Yasui, K ;
Manabe, T ;
Yamashita, M .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1996, 285 :311-316
[12]   Valence localization and its ordering in a mixed-valence MMX-chain complex, Pt2(dta)4I (dta = CH3CS2-) [J].
Kitagawa, H ;
Onodera, N ;
Mitani, T .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2000, 342 (342) :111-120
[13]   Charge ordering with lattice distortions in a conductive MMX-chain complex, Pt2(dta)4I (dta = CH3CS2-) [J].
Kitagawa, H ;
Onodera, N ;
Sonoyama, T ;
Yamamoto, M ;
Fukawa, T ;
Mitani, T ;
Seto, M ;
Maeda, Y .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (43) :10068-10080
[14]  
KITAGAWA H, 1997, SYNTHETIC MET, V86, P193
[15]   Solitons, polarons, and excitons in quasi-one-dimensional halogen-bridged transition metal compounds [J].
Okamoto, H ;
Yamashita, M .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1998, 71 (09) :2023-2039
[16]   CONTROL OF CDW STATE IN HALOGEN-BRIDGED METAL-COMPLEXES [J].
OKAMOTO, H ;
MITANI, T ;
TORIUMI, K ;
YAMASHITA, M .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1992, 13 (04) :L9-L14
[17]  
ROBERT V, UNPUB INORG CHEM
[18]  
WHANGBO MH, 1986, INORG CHEM, V25, P1727
[19]   MOTT-HUBBARD STATE IN ONE-DIMENSIONAL IODO-BRIDGED BINUCLEAR METAL DITHIOACETATO COMPLEXES, M2(DTA)4I (M=PT AND NI) [J].
YAMASHITA, M ;
WADA, Y ;
TORIUMI, K ;
MITANI, T .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1992, 216-18 :207-212
[20]  
[No title captured]
12