PHOTODISSOCIATION SPECTROSCOPY OF MG+-AR

被引：26

作者：

PILGRIM, JS ^{[1
]}

YEH, CS ^{[1
]}

DUNCAN, MA ^{[1
]}

机构：

[1] UNIV GEORGIA,DEPT CHEM,ATHENS,GA 30602

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 210卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(93)87030-7

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：

Mg+-Ar ion-molecule complexes are produced in a pulsed supersonic nozzle cluster source. The complexes are mass selected and studied with laser photodissociation spectroscopy in a reflectron time-of-flight mass spectrometer system. An electronic transition assigned as X 2SIGMA+-->2PI is observed with an origin at 31387 cm-1 (vac) for Mg-24+-Ar. The Mg-24+-Ar spectrum is characterized by a 15 member progression with a frequency (omega(e)') of 272 cm-1. An extrapolation of this progression fixes the excited state dissociation energy (D0') at 5552 cm -1. The corresponding ground-state value (D0'') is 1270 cm-1 (3.6 kcal/mol). The 2PI1/2,3/2 spin-orbit splitting is 76 cm-1.

引用

页码：322 / 326

页数：5

共 31 条

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