VIBRATIONAL AND ELECTRONIC-SPECTRA OF MATRIX-ISOLATED PENTACENE CATIONS AND ANIONS

被引：93

作者：

SZCZEPANSKI, J ^{[1
]}

WEHLBURG, C ^{[1
]}

VALA, M ^{[1
]}

机构：

[1] UNIV FLORIDA,CTR CHEM PHYS,GAINESVILLE,FL 32611

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 232卷 / 03期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1016/0009-2614(94)01340-2

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：

Pentacene cations and anions have been formed by electron bombardment of a vapor phase mixture of pentacene, Ar and CCl4 and trapped in an argon matrix. The electronic and infrared spectra of both ions have been recorded. Increasing concentrations of CCl4 resulted in the eventual disappearance of the anion spectrum. The intensity distributions of the IR spectra of the ions are similar but differ markedly from the distribution of neutral pentacene. The ion intensities resemble the distribution of the so-called interstellar 'unidentified infrared' bands. The visible bands of neural, cationic and anionic pentacene are compared with the diffuse inters tellar bands.

引用

页码：221 / 228

页数：8

共 22 条

[1] INTERSTELLAR POLYCYCLIC AROMATIC-HYDROCARBONS - THE INFRARED-EMISSION BANDS, THE EXCITATION EMISSION MECHANISM, AND THE ASTROPHYSICAL IMPLICATIONS [J].