PHOTOPHYSICAL BEHAVIOR OF DOUBLY BRIDGED D7-D7 METAL METAL BONDED COMPOUNDS - THE CRYSTAL-STRUCTURE AND THE EXCITED-STATE AND GROUND-STATE ELECTRONIC-SPECTRA OF RE2(CO)6[BIS(DIMETHYLPHOSPHINO)METHANE]2

被引:6
作者
MILDER, SJ
CASTELLANI, MP
WEAKLEY, TJR
TYLER, DR
MISKOWSKI, VM
STIEGMAN, AE
机构
[1] UNIV OREGON,DEPT CHEM,EUGENE,OR 97403
[2] CALTECH,JET PROP LAB,PASADENA,CA 91109
关键词
D O I
10.1021/j100380a015
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
Re2(CO)6(dmpm)2 shows photophysical behavior in a rigid medium that differs dramatically from that observed in fluid solution. In a hydrocarbon glass at 77 K, metal-metal bond homolysis is suppressed and an intense phosphorescence is observed. The transient absorption spectrum, which shows only weak transitions to the red of the ground state 1(σ → σ) transition, permits assignment of the emitting state to a 3(σ → σ*) transition. The crystal structure of Re2(CO)6(dmpm)2 is also reported. The ground-state electronic structure is discussed relative to the structural data. © 1990 American Chemical Society.
引用
收藏
页码:6599 / 6603
页数:5
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