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

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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
Volume20
Issue number6
Publication statusPublished - 1999 Jun 20

Fingerprint

Jahn-Teller effect
Porphyrins
Metals
Heavy Metals
Excited states
Raman spectroscopy
Charge transfer
tetraphenylporphyrin

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

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title = "Time-resolved resonance Raman spectroscopic study on metallo- tetraphenylporphyrins: Effects of metal sizes",
abstract = "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.",
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Time-resolved resonance Raman spectroscopic study on metallo- tetraphenylporphyrins : Effects of metal sizes. / Jeoung, Sae Chae; Kim, Dongho; Cho, Dae Won; Yoon, Minjoong.

In: Bulletin of the Korean Chemical Society, Vol. 20, No. 6, 20.06.1999, p. 657-662.

Research output: Contribution to journalArticle

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T1 - Time-resolved resonance Raman spectroscopic study on metallo- tetraphenylporphyrins

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AU - Jeoung, Sae Chae

AU - Kim, Dongho

AU - Cho, Dae Won

AU - Yoon, Minjoong

PY - 1999/6/20

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N2 - 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.

AB - 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.

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