Infrared vibrational spectra of L-histidinium dihydrogen orthophosphate orthophosphoric acid (LHP)

被引：26

作者：

Espinosa, E

Wyncke, B

Brehat, F

Gerbaux, X

Veintemillas, S

Molins, E

机构：

[1] Univ Nancy 1, LCM3B URA 809 CNRS, F-54506 Vandoeuvre Nancy, France

[2] Inst Ciencia Mat Barcelona, CSIC, Cerdanyola 08193, Spain

来源：

INFRARED PHYSICS & TECHNOLOGY | 1997年 / 38卷 / 07期

关键词：

far infrared spectroscopy; lattice vibrations; molecular vibrations; L-histidinium dihydrogen orthophosphate orthophosphoric acid (LHP);

D O I：

10.1016/S1350-4495(97)00029-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The entire vibrational spectrum of a single crystal of L-histidinium dihydrogen orthophosphate orthophosphoric acid (LHP) was studied by infrared (IR) spectroscopy from 10 up to 4000 cm(-1). The polarized infrared (IR) reflectivity spectra were measured between 7 and 250 K, in the frequency range 10-600 cm(-1) From the IR spectral analysis, the phonon modes were classified within their symmetry species, and their longitudinal (LO) and transverSal (TO) optical frequencies calculated. A tentative assignment of the various internal modes observed in the transmissivity spectrum of LHP, between 300 and 1000 cm(-1), is proposed. The present study did not reveal any low-temperature structural phase transition. (C) 1997 Elsevier Science B.V.

引用

页码：449 / 458

页数：10

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