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In situ resonance Raman spectra of carotenoids in bird's feathers
Author(s) -
Veronelli M.,
Zerbi G.,
Stradi R.
Publication year - 1995
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250260815
Subject(s) - polyene , feather , raman spectroscopy , carotenoid , molecule , pigment , chemistry , resonance (particle physics) , resonance raman spectroscopy , photochemistry , organic chemistry , biology , optics , biochemistry , paleontology , physics , atomic physics
Micro resonance Raman spectra of a series of synthetic carotenoids and of a large number of bird's feathers which contain various kinds of carotenoids were analysed on the basis of the effective conjugation coordinate (ECC) theory. The data obtained on parrots provide the first structural data on the chemical nature of the pigments embedded in their feathers, and show that these pigments are unmethylated polyene molecules. Data on the molecular orientation of the carotenoids and on the presence of different pigments in the same feather are presented and discussed.