Resonance Raman investigation of transient photoinduced ligation changes in nickel octaethyl porphyrin

The first picosecond and nanosecond time-resolved Raman spectra of photoexcited metalloporphyrins in the coordinating solvent piperidine are presented. Our data demonstrate that time-resolved resonance Raman spectra can be obtained from nickel octaethyl porphyrins and confirm the existence of photoi...

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Bibliographic Details
Published in:Chemical physics letters 1986-05, Vol.126 (5), p.465-471
Main Authors: Findsen, E.W., Shelnutt, J.A., Friedman, J.M., Ondrias, M.R.
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
General molecular conformation and symmetry
stereochemistry
Molecular properties and interactions with photons
Physics
Properties of molecules and molecular ions
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Summary:The first picosecond and nanosecond time-resolved Raman spectra of photoexcited metalloporphyrins in the coordinating solvent piperidine are presented. Our data demonstrate that time-resolved resonance Raman spectra can be obtained from nickel octaethyl porphyrins and confirm the existence of photoinduced ligation changes in nickel octaethyl porphyrin species on a sub-nanosecond timescale. It is inferred from the power-dependent behavior of various porphyrin vibrational modes that multiple photochemical effects are contributing to the observed transient spectra.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(86)80137-3