Fluorescence studies on the photo-induced ligation in the excited singlet state of magnesium tetraphenylporphine

Seigo Yamauchi, Yasuko Suzuki, Tohru Ueda, Kimio Akiyama, Yasunori Ohba, Masamoto Iwaizumi

研究成果: Article査読

8 被引用数 (Scopus)

抄録

We found that axial ligation of pyridine occurs more efficiently in the excited singlet state than in the ground state for five-coordinated magnesium tetraphenylporphine (MgTPP) at room temperature in methylcyclohexane solution. The rates of association and dissociation of an axial ligand were determined from the decay of the fluorescence. The former process is faster than the latter by a factor of 8.5 in the ligand of 1 M pyridine. The results are interpreted in terms of the changes in electronegativity of the central Mg cation through the metal-porphyrin interaction.

本文言語English
ページ(範囲)121-126
ページ数6
ジャーナルChemical Physics Letters
232
1-2
DOI
出版ステータスPublished - 1995 1月 6
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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