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

Authors
CHERTIHIN GV ANDREWS L ROSI M BAUSCHLICHER CW
Citation
Gv. Chertihin et al., 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, The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 101(48), 1997, pp. 9085-9091
Citations number
55
Journal title
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory → ACNP
ISSN journal
10895639
Volume
101
Issue
48
Year of publication
1997
Pages
9085 - 9091
Database
ISI
SICI code
1089-5639(1997)101:48<9085:ROLSAW>2.0.ZU;2-F
Abstract
Laser-ablated Sc atoms react with Oz during condensation in excess arg on to give ScO, OScO, and (O-2)ScO as major products, which are identi fied from oxygen isotopic substitution on their matrix infrared spectr a. The linear suboxide molecule ScOSc is a minor product. Annealing al lows further association to form ScO3, (ScO)(2) and Sc(O-2)(2). The OS cO molecule is bent: based on the oxygen-18 shift in the nu(3) mode, t he valence angle is 128 +/- 4 degrees. The nu(3) fundamental of OScO a t 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 rea ctions in excess nitrogen give evidence of extensive ligation.