Hot band spectroscopy of DCBr near 0.96 mu m

High resolution measurements of the 2(2)(0) (bending) hot band of the (A) o ver tilde(1)A" <-- (X) over tilde(1)A' band system of deuterobromomethylene between 10290 cm(-1) and 10540 cm(-1) are described. The spectra were reco rded by direct absorption of a continuous-wave frequency-modulated external cavity diode laser following pulsed ultraviolet laser photolysis of deuter ated bromoform. Although the bending vibrational spacings in the (X) over t ilde(1)A' stare are not regular, the rotational structure in its (020) leve l was found to be unperturbed at the accuracy of the experimental measureme nts. This observation provides strong evidence that the position of the exc ited tripler (a) over tilde(3) A", state lies to higher energy, at least 16 37cm(-1) above the zero point level of the ground state.