Spectroscopy of the triplet state of pseudoisocyanine molecular aggregates

Autor:	E. Daltrozzo, Josef Friedrich, G. Gradl
Rok vydání:	1990
Předmět:	Chemistry Relaxation (NMR) General Engineering Spin–lattice relaxation Nuclear magnetic resonance spectroscopy Physical and Theoretical Chemistry Triplet state Photochemistry Spectroscopy Phosphorescence J-aggregate Excitation
Zdroj:	The Journal of Physical Chemistry. 94:2301-2305
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100369a020
Popis:	We investigate the triplet state of molecular aggregates of pseudoisocyanine iodide by emission, excitation, and optically detected magnetic resonance spectroscopy. The phosphorescence seems to stem entirely from aggregated species. It is enhanced by reabsorption processes. H and J aggregates can be distinguished by their different triplet energies and zero-field resonances. The spin-lattice relaxation does not play any significant role in the triplet dynamics up to temperatures as high as 8 K
Databáze:	OpenAIRE
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