Chemical control of the monovalent-divalent electron-transfer phase transition in biferrocenium-TCNQ salts.
An ionic molecular crystal of (1',1'''-dineopentylbiferrocene)(F1TCNQ)3 exhibits a first-order phase transition from a monovalent state (D(+)A3(-)) to a divalent state (D(2+)A3(2-)) at around 120 K. The transition was successfully controlled by modulation of the redox potentials using FnTCNQ (n = 0-2) and by chemical-pressure effects.
Department of Chemistry, Graduate School of Science, Kobe University, Rokkodai, Nada, Hyogo 657-8501, Japan. tmochida@platinum.kobe-u.ac.jp.
Tomoyuki
T
Mochida
Yusuke
Y
Funasako
Kousuke
K
Takazawa
Masashi
M
Takahashi
Michio M
MM
Matsushita
Tadashi
T
Sugawara