Reactions of laser-ablated scandium atoms with dioxygen. Infrared spectra of ScO, OScO, (O-2)ScO, (ScO)(2), and Sc(O-2)(2) in solid argon

被引：70

作者：

Chertihin, GV

Andrews, L

Rosi, M

Bauschlicher, CW

机构：

[1] UNIV CHEM,DEPT CHEM,CHARLOTTESVILLE,VA 22901

[2] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1997年 / 101卷 / 48期

关键词：

D O I：

10.1021/jp972482f

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：

Laser-ablated Sc atoms react with Oz during condensation in excess argon to give ScO, OScO, and (O-2)ScO as major products, which are identified from oxygen isotopic substitution on their matrix infrared spectra. The linear suboxide molecule ScOSc is a minor product. Annealing allows further association to form ScO3, (ScO)(2) and Sc(O-2)(2). The OScO molecule is bent: based on the oxygen-18 shift in the nu(3) mode, the valence angle is 128 +/- 4 degrees. The nu(3) fundamental of OScO at 722 cm(-1) is substantially lower than the ScO fundamental at 976 cm(-1), which is in accord with weaker bonds in the dioxide. Similar reactions in excess nitrogen give evidence of extensive ligation.

引用

页码：9085 / 9091

页数：7

共 55 条

[21] Reactions of laser-ablated iron atoms with oxygen molecules in condensing argon. Infrared spectra and density functional calculations of iron oxide product molecules [J].