Time-resolved resonance Raman spectroscopic study on metallo- tetraphenylporphyrins: Effects of metal sizes

Sae Chae Jeoung, Dongho Kim, Dae Won Cho, Minjoong Yoon

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The variation of Jahn-Teller (J-T) distortion imposed on various metallo- tetraphenylporphyrins (MTPPs; M = Zn(II), Pd(II), Pt(II) and Rh(III)) has been investigated by time-resolved resonance Raman spectroscopy. B(1g) and B(2g) modes of the triplet (π,π*) states for the heavy-metal porphyrins exhibit the enhancement of their intensities compared with those of 3Zn(II)TPP, while the enhancement of phenyl internal mode is reduced. These results suggest that the J-T distortion becomes manifest as the metal size increases, and consequently the porphyrin-to-phenyl ring charge transfer in the excited triplet state is inhibited.

Original languageEnglish
Pages (from-to)657-662
Number of pages6
JournalBulletin of the Korean Chemical Society
Issue number6
Publication statusPublished - 1999 Jun 20


All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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