TY - JOUR
T1 - Nuclear Magnetic Resonance and Phase Transitions in Scandium Acetates, Sc(CH3COO)3 and Sc(CD3COO)3
AU - Kataoka, Hiroshi
AU - Takeda, Sadamu
AU - Nakamura, Nobuo
PY - 1993
Y1 - 1993
N2 - The first-order and second-order quadrupolar shifts of the 45Sc nuclear magnetic resonance (NMR) spectrum were investigated in the range of 4 to 300 K in relation to the structural phase transitions of Sc(CH3COO)3 and Sc(CD3COO)3. It was found that the transition temperature (re) of the deuterated compound was lower (158 K) than that of the protonated compound (167 K). Below the transition temperature, two sets of first-order quadrupolar shifts in the 45Sc NMR spectrum were clearly distinguished, which correspond to the two different sites of scandium ions in the crystal. The magnitude of the splitting, (Ivq), between the two different shifts decreased upon heating to exhibiting the critical phenomena described by the formula.
AB - The first-order and second-order quadrupolar shifts of the 45Sc nuclear magnetic resonance (NMR) spectrum were investigated in the range of 4 to 300 K in relation to the structural phase transitions of Sc(CH3COO)3 and Sc(CD3COO)3. It was found that the transition temperature (re) of the deuterated compound was lower (158 K) than that of the protonated compound (167 K). Below the transition temperature, two sets of first-order quadrupolar shifts in the 45Sc NMR spectrum were clearly distinguished, which correspond to the two different sites of scandium ions in the crystal. The magnitude of the splitting, (Ivq), between the two different shifts decreased upon heating to exhibiting the critical phenomena described by the formula.
UR - http://www.scopus.com/inward/record.url?scp=21144468779&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.62.1478
DO - 10.1143/JPSJ.62.1478
M3 - 学術論文
AN - SCOPUS:21144468779
SN - 0031-9015
VL - 62
SP - 1478
EP - 1481
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 5
ER -