Electron attachment products of methylene chloride in solid argon: an experimental and quantum chemical IR spectroscopic study Original Research Article

The nature and structure of electron attachment products in the photoinduced electron transfer reaction DMA + CH2Cl2→hvDMA+ + (electron attachment products) in solid argon has been studied by FTIR spectroscopy (DMA = N,N-dimethylaniline, hν = 4.88 eV Hg lamp radiation) along with extensive ab initio calculations. Two attachment products have been identified: the radical anion of CH2Cl2 and the dichloromethane anion (HCCl2−. The radical anion turns out to have a C1 hydrogen bridged structure (ClHCH…Cl−1). This structure as well as the species of HCCl2− have not been detected before.