TY - JOUR
T1 - H-transfer motions in an H-bonded (chloranilic acid)-(1,3-diazine) 1:2 molecular complex studied by 35Cl NQR and 1H NMR
AU - Ikeda, Ryuichi
AU - Takahashi, Satoshi
AU - Nihei, Taka Aki
AU - Ishihara, Hideta
AU - Ishida, Hiroyuki
PY - 2005/7/15
Y1 - 2005/7/15
N2 - 35Cl NQR and 1H NMR relaxation times (T1Q, T1H) were measured in a hydrogen-bonded (chloranilic acid)-(1,3-diazine) 1:2 molecular complex in a temperature range of ca. 100-300 K. NQR frequencies observed were explained by the monovalent (1-) ionic structure of chloranilic acid, implying partial H-transfer to diazine molecules. This H-transfer was shown to be dynamic by observing a single T1H minimum at ca. 120 K. Two new relaxation processes observed by NQR in high-temperature range, but undetected by NMR, were shown to be H-transfer motions between differently charged states of chloranilic acid molecules.
AB - 35Cl NQR and 1H NMR relaxation times (T1Q, T1H) were measured in a hydrogen-bonded (chloranilic acid)-(1,3-diazine) 1:2 molecular complex in a temperature range of ca. 100-300 K. NQR frequencies observed were explained by the monovalent (1-) ionic structure of chloranilic acid, implying partial H-transfer to diazine molecules. This H-transfer was shown to be dynamic by observing a single T1H minimum at ca. 120 K. Two new relaxation processes observed by NQR in high-temperature range, but undetected by NMR, were shown to be H-transfer motions between differently charged states of chloranilic acid molecules.
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U2 - 10.1246/bcsj.78.1241
DO - 10.1246/bcsj.78.1241
M3 - Article
AN - SCOPUS:23244449637
SN - 0009-2673
VL - 78
SP - 1241
EP - 1245
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
IS - 7
ER -