Reactions of Au+(1S) and  Au+(3D) with CH3F and CH3Cl have  been carried out in a drift cell at both room temperature and reduced  temperatures at a pressure of 3.5 torr. Au+(1S) is  observed to yield an association product in addition to  AuCH2+ in parallel steps with both neutrals. Reaction of  Au+(3D) with CH3F also results in HF  elimination, which in this case is thought to produce  3AuCH2+. With CH3Cl,  Au+(3D) reacts to form AuCH3+ and  CH3Cl+ in parallel steps. An additional product channel  initiated by Au+(3D) is also observed with both methyl  halides which yields CH2X+ as a higher-order product.  Product distributions were determined for association vs. HX elimination to be  79% association/21% HX elimination for X=F and 50% association/50% HX  elimination when x=Cl. The observed two body rate constants were  below the ADO limit for all reactions except for CH3Cl with  Au+(1S).

Near-thermal reactions of Au+(1S,3D) with CH3X (X=F,Cl)

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.