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Proceedings Paper

Picosecond Spectroscopy Of Metalloporphyrins And Hemoproteins
Author(s): K. D. Straub; P. M. Rentzepis
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Paper Abstract

Picosecond spectroscopy has been used to study the excited state dynamics of metalloporphyrins and hemoproteins. The relative effects of intersystem crossing, low-lying charge transfer states and ligand ejection on the excited state lifetimes in various metalloporphyrins differs according to the properties of the central metal ion. Hemoproteins relax rapidly from the excited state but even in such fast processes ligand dissociation can occur, although not all axial ligands undergo photodissociation. In general, axial ligands, when present, can control the energy levels of the central metal and by doing so can control the rate of intersystem crossing and non-radiative decay through intermediate charge transfer states.

Paper Details

Date Published: 10 March 1987
PDF: 5 pages
Proc. SPIE 0712, Lasers in Medicine, (10 March 1987); doi: 10.1117/12.937329
Show Author Affiliations
K. D. Straub, John L. McClellan Memorial Veterans Hospital and University of Arkansas for Medical Sciences (United States)
P. M. Rentzepis, University of California (United States)


Published in SPIE Proceedings Vol. 0712:
Lasers in Medicine
Stephen N. Joffe; John A. Parrish, Editor(s)

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