ABSORPTION SPECTRUM OF VAPORIZED TITANIUM MONOFLUORIDE

被引:23
作者
DIEBNER, RL
KAY, JG
机构
[1] Department of Chemistry, University of Toledo, Toledo
[2] Department of Chemistry, Drexel Institute of Technology, Philadelphia
关键词
D O I
10.1063/1.1672547
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 electronic absorption spectrum of TiF(G) has been obtained utilizing the techniques of flash heating and kinetic spectroscopy. No spectroscopic data have previously been reported for this molecule, which is observed in the vapor only during the preparative photoflash. The spectrum may be produced by the flash heating of powdered TiF3 or TiF4. It may also be obtained from the powdered metal flashed in the presence of CF4, SF6 or solid aluminum trifluoride. Three band systems have been observed, the main system occurring in the region 3930-4088 Å. The other two systems are in the regions 3855-3906 Å and 3650-3775 Å. The principal spectroscopic features resemble those of TiCl obtained by flash heating TiCl3(g) or Na2TiCl 4(s). A vibrational analysis of the main system of TiF shows it to be a Δv = 0 sequence for the transition from the 4σ -(δ2σ) ground state to a 4II (δ2π or δσπ) excited state. An absorption band attributed to the (1,0) transition is consistent with ω′ = 593 cm-1. A number of bands remain unassigned.
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页码:3547 / &
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