Abstract
Reactions of titanium dioxide with acetylene molecules have been studied using matrix isolation infrared absorption spectroscopy. The titanium dioxide molecules were prepared by the reactions of laser-ablated titanium atoms with dioxygen. In solid argon, titanium dioxide molecule reacted with acetylene to form the TiO 2 -C 2 H 2 complex spontaneously on annealing. The complex underwent photochemical rearrangement to the OTi(OH)CCH and H 2 Ti(CO) 2 isomers upon UV-visible photolysis. The product absorptions were identified by isotopic substitutions and density functional calculations of isotopic frequencies.
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