Direct mapping of vibrational-specific angular distributions of the polyatomic reaction product: CN+D2→DCN+D

A newly developed Doppler-selected time-of-flight (a 3D) method was applied to map out for the first time the vibrational-specific angular distributions of the DCN product from the title reaction. A tentative vibrational assignment was given for the observed structures. It was found that the nascent DCN is formed with substantial excitations in both C–D stretch and DCN bend modes. While the pure C–D stretch and those associated with low bend excitations are predominantly backward scattered, the highly excited DCN in both modes also exhibit a substantial forward scattered component in the angular distribution.