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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 20, Number 6
BKCSDE 20(6)
June 20, 1999

Title	Time-Resolved Resonanec Raman Spectroscopic Study on Metallo-tetraphenylporphyrins: Effects of Metal Sizes
Author	Sea Chae Jeoung, dongho Kim, Dae Won Cho, Minjoong Yoon
Keywords
Abstract	The variation of Jahn-Teller(J-T) distortion imposed on various metallo- tetraphenylporphyrins(MTPPS;M=ZnⅡ,PdⅡ,PtⅡ,and RhⅢ) has been investigated by time-resolved resonance Raman spectroscopy. B1g and B2g modes of the triplet(π,π*) states for the heavy-metal porphyrins exhibit the enhancement of their intensities compared with those of 3ZnⅢTPP, 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.
Page	657 - 662
Full Text	PDF

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