REACTION-KINETICS OF MO(A(7)S(3), A(5)S(2), A(5)D(J), A(5)G(J)) WITH O-2

The gas phase reactivities of Mo(a(7)S(3) a(5)S(2), a(5)D(J), a(5)G(J)) with O-2 in the temperature range 297-620 K are reported. Mo atoms were produced by the photodissociation of Mo(CO)(6) and MoCl4 and detected by laser-induced fluorescence. The disappearance rates of all states are found to be pressure independent with argon buffer gas. The disappearance rate constants of the s(1)d(5) a(7)S(3), a(5)S(2) and a (5)G(J), states are on the order of the gas kinetic rate constant. The s(2)d(4) a(5)D(J) states are not as reactive and are found to be temperature dependent. Results are discussed in terms of the different electron configurations of the states.