Conformation of L-Tyrosine Studied by Fluorescence-Detected UV-UV and IR-UV Double-Resonance Spectroscopy

• Inokuchi, Yoshiya

• Kobayashi, Yusuke

• Ito, Takafumi

• Ebata, Takayuki

抄録

The laser-induced fluorescence spectrum of jet-cooled L-tyrosine exhibits more than 20 vibronic bands in the 35450-35750 cm-1 region. We attribute these bands to eight conformers by using results of UV-UV hole-burning spectroscopy. These isomers are classified into four groups; each group consists of two rotational isomers that have a similar side-chain conformation but different orientations of the phenolic OH. The splitting of band origins of rotational isomers is 31, 21, 5, and 0 cm-1 for these groups. IR-UV spectra suggest that conformers belonging to two of the four groups have an intramolecular OH・・・N hydrogen bond between the COOH and NH2 groups. By comparing experimental and theoretical results of L-tyrosine with those of L-phenylalanine, we propose probable conformers of L-tyrosine.

収録刊行物

• Journal of Physical Chemistry A

  Journal of Physical Chemistry A 111 (17), 3209-3215, 2007-05-03

  American Chemical Society

詳細情報

• CRID: 1050859215938495488
• NII論文ID: 120005627693
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00037970
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles