Synthesis and crystal structures of new C₆₀ complexes with asymmetric tetrathiafulvalenes

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• 作者：Konarev ; Dmitri V. ; Neretin ; Ivan S. ; Slovokhotov ; Yury L. ; Litvinov ; Alexey L. ; Otsuka ; Akihiro ; et. al.
• 关键词：TMTSeF ; tetramethyltetraselenafulvalene ; TMDTDM-TTF ; tetramethylenedithiodimethyl-tetrathiafulvalene ; BET-TTF ; bis(ethylenethio)-tetrathiafulvalene ; BEDT-TTF ; bis(ethylenedithio)-tetrathiafulvalene ; OMTTF ; octamethylenetetrathiafulvalene ; twin-BEDT-TTF ; b
• 刊名：Synthetic Metals
• 出版年：2002
• 出版时间：November 20, 2002
• 年：2002
• 卷：131
• 期：1-3
• 页码：87-92
• 全文大小：291 K

文摘

New charge transfer complexes of fullerene C₆₀ with two types of tetrathiafulvalenes: bis(4,5-dihydronaphtho[1,2-d])-tetrathiafulvalene (BDHN-TTF(C₆₀)₂C₇H₈, 1) and three bis(alkylthio)ethylenedithio-tetrathiafulvalenes (C_nTET-TTF(C₆₀)_x, where x=2, n=2 (2); x=1.5, n=4 (3); x=3, n=7 (4)) were obtained. Compounds 1 and 2 were studied by single crystal X-ray diffraction. In both crystal structures, the three-dimensional (3D) packing of fullerene molecules formed by waved dense hexagonal layers was revealed. The donor molecules arranged in the fullerene framework attain bent conformation to fit to the spherical fullerene surface. Intermolecular contacts have typical van der Waals lengths. According to optical data, the complexes obtained have a neutral ground state with the charge transfer bands at 11×10³cm⁻¹.