Low-frequency vibrational modes of riboflavin and related compounds

Masae Takahashi, Yoichi Ishikawa, Jun Ichi Nishizawa, Hiromasa Ito

研究成果: Article査読

74 被引用数 (Scopus)

抄録

The low-frequency vibrations of riboflavin and related compounds (alloxazine, lumichrome, lumiflavin as the ring system and d-mannitol as the side-chain system) were observed by far-infrared (terahertz) spectroscopy. Vibrational mode assignments in this spectrally congested range were made using high precision quantum chemical calculations. These resonance frequencies located below 200 cm -1 indicate the existence of motions important for biological reactions. The observed absorption bands in the low-frequency region of riboflavin are assigned to the in-plane and out-of-plane-ring deformations of pyrimidine and isoalloxazine, and to the torsion modes of the ribityl chain.

本文言語English
ページ(範囲)475-482
ページ数8
ジャーナルChemical Physics Letters
401
4-6
DOI
出版ステータスPublished - 2005 1月 11
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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