EMISSION-SPECTRA OF CO2- RADICALS, STABILIZED IN SRCO3 OBTAINED BY THERMAL-DECOMPOSITION OF SRC2O4.H2O

被引:0
|
作者
DEGEN, J [1 ]
SCHMIDTKE, HH [1 ]
STOYANOVA, R [1 ]
ANGELOV, S [1 ]
ATANASOV, M [1 ]
机构
[1] BULGARIAN ACAD SCI,INST GEN & INORGAN CHEM,BU-1040 SOFIA,BULGARIA
关键词
D O I
10.1016/0301-0104(90)85055-2
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
Emission spectra of CO2- radicals in SrCO3 are recorded between T=2 K and room temperature. Lifetimes and time-resolved spectra are measured at T= 10 K and excitation spectra at room temperature. At helium temperatures a progression in the totally symmetric mode v1 of CO2- is observed. From an analysis of the band profile, the geometry change in the excited state relative to the ground electronic state is obtained. The spectrum is assigned to vibronic transitions of at least three CO2- species of very similar energy which are on different sites (traps) in the host lattice. © 1990.
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页码:415 / 420
页数:6
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