J. Phys. IV France 114 (2004) 471
Hydrogen-bonded charge-transfer complexes of TTFs containing nucleobase or imidazole moietyY. Morita1, 2, T. Murata1, E. Miyazaki1, S. Maki1, K. Fukui2, Y. Umemoto1, H. Yamochi3, G. Saito3 and K. Nakasuji1
1 Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
2 PRESTO, JST, Honcho, Kawaguchi, Saitama 332-0012, Japan
3 Division of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
Novel electron-donor molecules based on tetrathiafulvalene (TTF) and imidazole skeleton with hydrogen-bonded (H-bonded) functionality 1-5 and 7-10 have been designed and synthesized. The cyclic voltammograms for TTF-based donors 1-5 exhibit two-stage one-electron reversible waves, while oligo(imidazole)s 7-10 show irreversible one. The room-temperature conductivities of their tetracyanoquinodimethane (TCNQ) complexes for 1, 2, 4, 5, 8 and 9 exhibit 0.11, 0.07, 2.3, 0.38, 0.16 and 0.10 Scm -1, respectively, revealing high electrical conductivity than those of known charge-transfer (CT) complexes derived from organic donors with amino or hydroxyl groups and organic acceptor molecules. Key words. TTF, nucleobase, imidazole, hydrogen-bonding, charge-transfer complex, conductivity.
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