Magnetic alignment in solid state and temperature hysteresis in aqueous tetrahydrofuran solution for tetrathiafulvaleno[18]annulenes

Hideo Enozawa; Masashi Hasegawa; Eigo Isomura; Tohru Nishinaga; Tadashi Kato; Masafumi Yamato; Tsunehisa Kimura; Masahiko Iyoda

doi:10.1002/cphc.200900545

Magnetic alignment in solid state and temperature hysteresis in aqueous tetrahydrofuran solution for tetrathiafulvaleno[18]annulenes

Chemphyschem. 2009 Oct 19;10(15):2607-11. doi: 10.1002/cphc.200900545.

Authors

Hideo Enozawa¹, Masashi Hasegawa, Eigo Isomura, Tohru Nishinaga, Tadashi Kato, Masafumi Yamato, Tsunehisa Kimura, Masahiko Iyoda

Affiliation

¹ Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan.

PMID: 19681092
DOI: 10.1002/cphc.200900545

Abstract

Tris(tetrathiafulvaleno)dodecadehydro[18]annulene-hexaesters have a multi-functionality that is very sensitive to small differences in the ester side-chain. Self-aggregation of the [18]annulenes in amphiphilic media such as THF-H(2)O (v/v, 1:1) either produce a fibrous structure or result in temperature hysteresis of the color and (1)H NMR signals. This temperature hysteresis in solution is due to both strong self-aggregation behavior and unique cluster formation in a binary solution of THF and water.