Resonance raman spectra and excitation profiles of soret-excited metalloporphyrins

L. D. Cheung; Nai Teng Yu; R. H. Felton

doi:10.1016/0009-2614(78)84030-5

Resonance raman spectra and excitation profiles of soret-excited metalloporphyrins

L. D. Cheung^*, Nai Teng Yu, R. H. Felton

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

33 Citations (Scopus)

Abstract

Resonance Raman spectra of nickel, chromium, and copper porphyrins, excited at their Soret maxima, show decreasing scattering intensity due to depolarized modes. This order correlates with diminished ¹Q(0-0) absorption in the porphyrins. The data are interpreted in terms of Jahn-Teller distortions in both Q and B states. General agreement between predicted and observed excitation profiles of nickel etioporphyrin I support a vibronic treatment of the excited states. The effect of tight focusing of the incident beam is to quench most Raman scattering intensity, except the 1384 cm^-1 line of the nickel complex.

Original language	English
Pages (from-to)	527-530
Number of pages	4
Journal	Chemical Physics Letters
Volume	55
Issue number	3
DOIs	https://doi.org/10.1016/0009-2614(78)84030-5
Publication status	Published - 1 May 1978
Externally published	Yes

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title = "Resonance raman spectra and excitation profiles of soret-excited metalloporphyrins",

abstract = "Resonance Raman spectra of nickel, chromium, and copper porphyrins, excited at their Soret maxima, show decreasing scattering intensity due to depolarized modes. This order correlates with diminished 1Q(0-0) absorption in the porphyrins. The data are interpreted in terms of Jahn-Teller distortions in both Q and B states. General agreement between predicted and observed excitation profiles of nickel etioporphyrin I support a vibronic treatment of the excited states. The effect of tight focusing of the incident beam is to quench most Raman scattering intensity, except the 1384 cm-1 line of the nickel complex.",

author = "Cheung, \{L. D.\} and Yu, \{Nai Teng\} and Felton, \{R. H.\}",

year = "1978",

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T1 - Resonance raman spectra and excitation profiles of soret-excited metalloporphyrins

AU - Cheung, L. D.

AU - Yu, Nai Teng

AU - Felton, R. H.

PY - 1978/5/1

Y1 - 1978/5/1

N2 - Resonance Raman spectra of nickel, chromium, and copper porphyrins, excited at their Soret maxima, show decreasing scattering intensity due to depolarized modes. This order correlates with diminished 1Q(0-0) absorption in the porphyrins. The data are interpreted in terms of Jahn-Teller distortions in both Q and B states. General agreement between predicted and observed excitation profiles of nickel etioporphyrin I support a vibronic treatment of the excited states. The effect of tight focusing of the incident beam is to quench most Raman scattering intensity, except the 1384 cm-1 line of the nickel complex.

AB - Resonance Raman spectra of nickel, chromium, and copper porphyrins, excited at their Soret maxima, show decreasing scattering intensity due to depolarized modes. This order correlates with diminished 1Q(0-0) absorption in the porphyrins. The data are interpreted in terms of Jahn-Teller distortions in both Q and B states. General agreement between predicted and observed excitation profiles of nickel etioporphyrin I support a vibronic treatment of the excited states. The effect of tight focusing of the incident beam is to quench most Raman scattering intensity, except the 1384 cm-1 line of the nickel complex.

UR - http://www.scopus.com/inward/record.url?scp=0040719650&partnerID=8YFLogxK

U2 - 10.1016/0009-2614(78)84030-5

DO - 10.1016/0009-2614(78)84030-5

M3 - Journal Article

AN - SCOPUS:0040719650

SN - 0009-2614

VL - 55

SP - 527

EP - 530

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3

ER -

Resonance raman spectra and excitation profiles of soret-excited metalloporphyrins

Abstract

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