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Effects of modification of molecular structure on Raman spectral depolarization ratios: aqueous betaine (CH3)3NCH2CO2 center dot 29D2O versus (CH3)4NBr center dot 29D2O

Date

Authors

Spinner, Ernest

Publisher

Elsevier

Abstract

Replacement of a CH in (CH3)4N+ by a CO2- group raises ρ from 0.012 to 0.034 for symmetric N-C stretching and from ca. 0.026 to 0.031 for all-in-phase methyl C-H stretching. ρ for antisymmetric C-H stretching and CH3 bending remains in the 0.73-0.75 ran

Keywords

Keywords: Chemical bonds; Heavy water; Hydration; Molecular structure; Organic compounds; Positive ions; Depolarization ratios; Raman spectroscopy; betaine; deuterium oxide; quaternary ammonium derivative; tetramethylammonium; article; chemical structure; chemistry Depolarization ratios; Lack of hydration asymmetry effects; Raman spectra; Trimethylammonioacetate zwitterion

URI

http://hdl.handle.net/1885/88539

Collections

ANU Research Publications

Source

Spectrochimica Acta: part A

Type

Journal article

DOI

10.1016/S1386-1425(02)00290-1

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