The ((B)over-tilde2A′←(X)over-tilde2A′) laser induced fluorescence excitation spectrum of DCO in a supersonic jet expansion

被引：9

作者：

Gripp, J ^{[1
]}

Kuczmann, A ^{[1
]}

Stöck, C ^{[1
]}

Temps, F ^{[1
]}

Tröllsch, A ^{[1
]}

机构：

[1] Univ Kiel, Inst Phys Chem, D-24098 Kiel, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2000年 / 2卷 / 08期

关键词：

D O I：

10.1039/a910318j

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：

The laser induced fluorescence (LIF) excitation spectrum of DCO ((B) over tilde (2)A' <-- (X) over tilde (2)A') has been investigated in a supersonic free jet expansion. Eleven vibrational bands including the origin band were observed in the energy range from 38 600 to 42 500 cm(-1). The band intensities were found to decrease rapidly with increasing excitation in the (B) over tilde state due to fast predissociation. High resolution spectra were recorded for the (000), (001), (010) and (100) vibrational bands to determine precise fundamental vibrational term energies and rotational constants and spin-rotation constants of the (B) over tilde state. The data were used to derive the following structural parameters for DCO ((B) over tilde): r(D-C) = 1.121(6) Angstrom, r(C-O) = 1.371(1) Angstrom and (DCO) = 105.1(2)degrees.

引用

页码：1653 / 1657

页数：5

共 57 条

[41] ASYTOP - A PROGRAM FOR DETAILED ANALYSIS OF GAS-PHASE MAGNETIC-RESONANCE SPECTRA OF ASYMMETRIC-TOP MOLECULES [J].