The formation of single-bonded (C60-)2 and (C70-)2 dimers in ionic complexes of fullerenes

被引：5
|
作者：
Konarev, DV [1 ]
Khasanov, SS
Vorontsov, II
Saito, G
Otsuka, A
机构：
[1] Kyoto Univ, Grad Sch Sci, Div Chem, Sakyo Ku, Kyoto 6068502, Japan
[2] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Region, Russia
[3] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Region, Russia
[4] Russian Acad Sci, Inst Organoelement Cpds, Moscow 119991, Russia
[5] Kyoto Univ, Res Ctr Low Temp & Mat Sci, Sakyo Ku, Kyoto 6068502, Japan
来源：
SYNTHETIC METALS | 2003年 / 135卷 / 1-3期
关键词：
fullerenes C-60 and C-70; ionic complexes; dimers; X-ray diffraction; electron paramagnetic resonance; SQUID measurements;
D O I：
10.1016/S0379-6779(02)00855-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
New ionic complexes of fullerenes C-60 and C-70: Cp*2CrC60(C6H4C12)(2) (1) and Cs-2(C-70)(2).CTV'(DMF)(7).(C6H6)(0.75) (2) (Cp*Cr-2: decamethylchromocene; CTV: cyclotriveratrylene) have been obtained as single crystals. It is shown that paramagnetic fullerene radical anions form diamagnetic single-bonded (C-60(-))2 and (C-70(-))2 dimers in both complexes at low temperatures, the molecular structures of which are presented. The dimer-monomer phase transitions at 200-220 K in 1 (reversible) and at 360-390 K in 2 are discussed.
引用
收藏
页码：781 / 782
页数：2
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