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.