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Photophysical hole burning in the resonance Raman excitation profile of the chlorophyll a dimer in solution

โœ Scribed by A. De Wilton; L.V. Haley; J.A. Koningstein

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
270 KB
Volume
97
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The R.mun c\sltdtion ~~roiiles of norm.11 mode\ of chloroph? 113 ditners in hcunc exhibit sharp minims betwxn 427 mc! 450 not. In thi\ spcctrA r.tnfc_ .t non-line&r relationship bet\rcn the Ratnart intensities and the intensity of the pttbcd I.tsrr I\ obscrvcd. Thrsc non-hnc.tritia indiutc popul.Aon of IONCI-lying mcited states of the chlorophyll a dirncr. The I<.oxm w_~ttcrm~ from thcsc cxcitcd stats is xxeA.tr than the rigorous resonance-enhanced Rwmn smttcritq from the Wz ~cporl hcr12 llic f1ts.l observ&ion of hole burning III tlx R.ml.m c\cilation profile of the ~cs~~JIIc~' cn-

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โœ Masayuki Kanzaki; Tetsuro Yuzawa; Hidefumi Hiura; Hiroaki Takahashi ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 299 KB

Resonance Raman spectra of the lowest excited triplet state of chlorophyll a are obtained in benzene and in methanol by pumping at 660 nm in the Q, band and pmbing at 460 nm which is close to the absorption maximum of the T, state. Tbe spectrum observed in polar methanol differs significantly from t