Temperature-Dependent Infrared Study on L- and DL-α-Alanine
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概要
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Infrared spectra from 4000 to 30 cm<SUP>−1</SUP> of L- and DL-α-alanine and their <I>N</I>-deuterated analogues were measured at temperatures ranging from 295 to 100 K. Highly temperature-dependent bands were observed at 972 cm<SUP>−1</SUP> (at 100 K) for L-α-alanine and 975 cm<SUP>−1</SUP> for DL-α-alanine. The temperature dependence of the half-widths of these bands indicates that above 200 K the vibrational modes are considerably modulated by some motions, possibly arising from breaking of hydrogen bonds. These bands are thus assigned to the first overtone of the NH<SUB>3</SUB><SUP>+</SUP> torsional mode.
- 公益社団法人 日本化学会の論文
著者
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Kaneko Norio
Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University
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Takahashi Hiroaki
Department Of Biochemistry And Molecular Biology Graduate School Of Science And Engineering Saitama
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Higasi Keniti
Department of Chemistry, School of Science and Engineering, Waseda University
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