ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Raman and infrared spectra of phosphatidylcholine-acid mixtures (1:1) are reported and discussed in terms of both general structural and specific interactions as a function of the acidic strength of the proton donor. The infrared spectra indicate the formation of a strong, highly polarizable hydrogen bond with monochloro-, dichloro- and trichloroacetic acids. The complete transfer of the proton from the donor to the phospholipid is observed with hydrochloric acid. The Raman data suggest conformational changes in the lateral packing of the acylic chains of the phospholipid. The importance of both these specific interactions, namely hydrogen bonding and structural modifications, in biological systems is discussed and related to biological activity.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250110403
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