POLARIZED VIBRATIONAL-SPECTRA OF BET-CENTER-DOT-H3PO4 SINGLE-CRYSTAL .1. ANTIFERRODISTORTIVE PHASE

Citation
Mm. Ilczyszyn et H. Ratajczak, POLARIZED VIBRATIONAL-SPECTRA OF BET-CENTER-DOT-H3PO4 SINGLE-CRYSTAL .1. ANTIFERRODISTORTIVE PHASE, Journal of molecular structure, 375(3), 1996, pp. 213-222
Citations number
13
Categorie Soggetti
Chemistry Physical
ISSN journal
00222860
Volume
375
Issue
3
Year of publication
1996
Pages
213 - 222
Database
ISI
SICI code
0022-2860(1996)375:3<213:PVOBS.>2.0.ZU;2-1
Abstract
The polarized infrared and Raman spectra of a single crystal of betain e phosphoric acid (CH3)(3)N+CH2COO-. H3PO4 were measured. The results obtained are discussed on the basis of the crystal structure. Characte ristic spectral features due to hydrogen bond vibrational modes were i dentified from their polarization behaviour resulting from two short h ydrogen bonds connecting the PO43- groups into infinite chains paralle l to the antiferroelectric axis and from two other strong hydrogen bon ds linking the betaine molecules and PO43- groups.