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Preparation of C60 Charge Transfer Complexes with Organic Donor Molecules and Alkali Doping

Published online by Cambridge University Press:  10 February 2011

A. Otsuka
Affiliation:
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-01, JAPAN
G. Saito
Affiliation:
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-01, JAPAN
S. Hirate
Affiliation:
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-01, JAPAN
S. Pac
Affiliation:
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-01, JAPAN
T. Ishida
Affiliation:
Division of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-01, JAPAN
A. A. Zakhidov
Affiliation:
Institute for Molecular Science, Okazaki 444, JAPAN
K. Yakush
Affiliation:
Institute for Molecular Science, Okazaki 444, JAPAN
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Abstract

Solid charge transfer (CT) complexes of C60 with TSeC1-TTF, EDT-TTF, EOET-TTF, and TDAP (1, 3, 6, 8-tetrakis(dimethylamino)pyrene) were newly prepared. All the obtained black crystals were proved to be neutral despite of their rather strong electron donor ability. Lattice parameters of them except for EOET-TTF complex were determined together with those of HMTTeF·C60, which had been reported with different values. Rubidium doping under a mild condition was examined on the complexes of TDAP, EOET-TTF, HMTTeF, BEDT-TTF, hydroquinone and ferrocene to search for the superconductors of new crystal and electronic structures. Among them, the rubidium-doped ferrocene complex easily showed an apparent superconducting signal in SQUID magnetization measurements. The doping effect on these CT complexes is compared to that on OMTTF complex.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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