Two-dimensional networks of ethylenedithiotetrathiafulvalene derivatives with the hydrogen-bonded functionality of uracil, and channel structure of its tetracyanoquinodimethane complex.
Ethylenedithiotetrathiafulvalene (EDT-TTF) derivatives with N1-butyluracil or N1-phenyluracil moiety were designed and synthesized as new hydrogen-bonded electron-donor molecules with the aim of introducing multiple S...S interactions into the hydrogen-bonded structures composed of the TTF-nucleobase systems. In the crystals of the EDT-TTF derivatives, two-dimensional sheet and layer structures were formed through pi...pi, multiple S...S interactions, and complementary double hydrogen bonds. In the tetracyanoquinodimethane (TCNQ) charge-transfer complex of the EDT-TTF-N1-butyluracil dyad with a segregated column, a layer structure of the electron-donor molecules was constructed through the noncovalent interactions. The n-butyl group of the uracil moiety served to separate the space between the donor layers, resulting in construction of a channel structure. Disordered TCNQ molecules were located in the microporous space of the channel. The TCNQ complex exhibited high electric conductivity (sigmart= 2.1 S cm(-1)) in a single crystal.
Morita
Yasushi
Y
Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan. morita@chem.sci.osaka-u.ac.jp
Miyazaki
Eigo
E
Umemoto
Yoshikazu
Y
Fukui
Kozo
K
Nakasuji
Kazuhiro
K