VACUUM-ULTRAVIOLET LASER TIME-OF-FLIGHT MASS-SPECTROSCOPY - ION-PAIR SPECTRA OF (BRCL)-BR-79-CL-35

被引：25

作者：

DIMOV, SS ^{[1
]}

LIPSON, RH ^{[1
]}

TURGEON, T ^{[1
]}

VANSTONE, JA ^{[1
]}

WANG, P ^{[1
]}

YANG, DS ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,DEPT CHEM,LONDON N6A 5B7,ON,CANADA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 100卷 / 12期

关键词：

D O I：

10.1063/1.466721

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：

A newly built vacuum ultraviolet (VUV) laser/time-of-flight mass spectrometer is described, which has been used to record the first vibrationally and rotationally resolved spectra of the E0(+) ion-pair state <--X0(+) ground state transition of jet-cooled bromine monochloride BrCl, near 145 nm. The mass resolution of the instrument (m/Delta m approximate to 1000) was sufficient to obtain single isotopomer data. Preliminary results for (BrCl)-Br-79-Cl-35 are reported. Like other interhalogens, BrCl vibronic band intensities vary widely in the VUV, presumably as a result of excited state perturbations. This scenario has been corroborated by the observation of an irregularly spaced vibrational progression, and the irregular behavior of the excited state rotational constants as a function of upsilon'.

引用

页码：8666 / 8672

页数：7

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