ラマン散乱による水素結合系混晶におけるH結合とD結合の相互作用の解明 [in Japanese] Raman Scattering Study of HSO_4 and DSO_4 in TKHS-TKDS Mixed crystals [in Japanese]
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In K<SUB>3</SUB>H (SO<SUB>4</SUB>) <SUB>2</SUB>-K<SUB>3</SUB>D (SO<SUB>4</SUB>) <SUB>2</SUB> mixed crystals, internal v<SUB>2</SUB> mode frequencies of DSO<SUB>4</SUB> show abrupt splitting at the phase transition temperature, while those of HSO<SUB>4</SUB> split continuously. The length of D-hydrogen bond is concluded to be independent of the D concentration. This conclusion is supported by the measurement of the characteristic time τ<SUB>c</SUB><SUP>-1</SUP> of deuteron motion; gradients of the temperature dependence of τ<SUB>c</SUB><SUP>-1</SUP> are almost the same for any concentration of D studied.
X-RAYS 40(1), 48-51, 1998-02-28
The Crystallographic Society of Japan