ROTATIONALLY RESOLVED PHOTODISSOCIATION SPECTROSCOPY OF MG+-AR

被引:58
作者
SCURLOCK, CT [1 ]
PILGRIM, JS [1 ]
DUNCAN, MA [1 ]
机构
[1] UNIV GEORGIA,DEPT CHEM,ATHENS,GA 30602
关键词
D O I
10.1063/1.470683
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 metal ion-complex Mg-24(+)-Ar has been prepared in a pulsed nozzle/laser vaporization source, mass selected with a reflection time-of-flight mass spectrometer and studied with photodissociation spectroscopy at high resolution. The (5,0) band of the A (2) Pi(r)<--X (2) Sigma(+) transition has been rotationally analyzed and the rotational constants, B '' = 0.1409(7) cm(-1) and B' = 0.1836(8) cm(-1), and spin-orbit constant, A' = 73.94(2) cm(-1), have been determined. The bond distances in the ground and excited states of the complex (r ''(0) = 2.88 Angstrom, r'(5) = 2.52 Angstrom)) compare well with the values predicted by theory, and they confirm the suspected nature of the electrostatic bonding in this system. (C) 1995 American Institute of Physics.
引用
收藏
页码:3293 / 3298
页数:6
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