Gv. Chertihin et al., REACTIONS OF LASER-ABLATED VANADIUM ATOMS WITH DIOXYGEN - INFRARED-SPECTRA OF VO, VO2, OOVO2, AND V2O2 IN SOLID ARGON, The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 101(28), 1997, pp. 5090-5096
Laser-ablated V atoms react with O-2 to give primarily the bent VO2 di
oxide molecule and a smaller yield of the monoxide VO. The OVO valence
angle is estimated as 118+/-3 degrees from oxygen isotopic v(3) frequ
encies and 121 degrees from DFT calculations. New absorptions appear o
n annealing to 35 K that can be assigned to two V2O2 isomers and the s
uperoxo adduct to VO2, namely the OOVO2 molecule. Both VO2 and OOVO2 r
eveal weak v(1) + v(3) combination bands, which support the assignment
of v(1) and v(3) fundamental vibrations.