High-pressure Raman spectra of p-diiodobenzene

被引：1

作者：

Farina, L ^{[1
]}

Palazzi, L ^{[1
]}

Venuti, E ^{[1
]}

Della Valle, RG ^{[1
]}

Brillante, A ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Chim Fis & Inorgan, I-40136 Bologna, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2000年 / 104卷 / 47期

关键词：

D O I：

10.1021/jp0022353

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report a detailed experimental investigation of Raman phonon spectra of crystals of 1,4-diiodobenzene (p-DIB) in the pressure range 0-7.5 GPa. Strong modifications of spectral profiles as a function of pressure suggest the possibility of two pressure-induced phase transitions at 0.4 and 1.7 GPa. Quasi-harmonic lattice dynamics (QHLD) calculations, based on intermolecular atom-atom potentials, are applied to model the ambient p,T crystal structure and the pressure dependence of the Raman-active lattice phonons.

引用

页码：11070 / 11074

页数：5

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