Vibrational energy of the monoalkyl zinc product formed in the photodissociation of dimethyl zinc, diethyl zinc, and dipropyl zinc

摘要: The gas‐phase photodissociation of (CH3)2Zn, (C2H5)2Zn, and (n‐C3H7)2Zn has been examined at 248 nm using laser‐induced fluorescence to detect the monoalkyl zinc radical atom photoproducts. For each compound, is primary photoproduct formed sufficiently hot that it spontaneously dissociates an alkyl a Zn without absorption second photon. Photodissociation was in presence He buffer gas measure probability quenching secondary spontaneous dissociation species. all three dialkyl compounds, step increases substantially over pressure range 0–400 Torr. vs fit RRKM theory conjunction with time‐dependent master equation, treating nascent vibrational energy distribution product as adjustable function. data for C2H5Zn n‐C3H...