Matrix isolation spectroscopic study of the 1:1 complexes of TiF4 with NH3 and (CH3)3N

被引：2

作者：

Ault, BS ^{[1
]}

机构：

[1] Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1998年 / 102卷 / 37期

关键词：

D O I：

10.1021/jp982152a

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 matrix isolation technique with twin-jet deposition has been coupled with infrared spectroscopy for the isolation, identification, and characterization of the 1:1 complexes of TiF4 with NH3 and (CH3)(3)N For each of these complexes, two perturbed Ti-F stretching modes were observed to be red-shifted 40-90 cm(-1) from the triply degenerate parent TiF4 mode at 792 cm(-1), indicating a reduction of symmetry in the complex to at least C-3 upsilon. In addition, the symmetric deformation mode of the NH3 subunit shifted 228 cm(-1) to higher energy, indicating that TiF4 is a moderate strength Lewis acid. Merged jet deposition of these reagents led to no observed product in the matrix and no parent TiF4, suggesting that a reaction to form a nonvolatile product in the merged or reaction region had occurred, probably forming the very stable 1:2 complex.

引用

页码：7245 / 7249

页数：5

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