Low-Temperature Matrix Isolation Studies of BCl(N3)2: Infrared Spectra and Photolysis Processes
摘要:
BCl(N-3)(2) was isolated in a low-temperature argon matrix and its FTIR spectrum measured. The splitting due to the natural abundances of B-10 and B-11 and ab initio calculations of the ground-state frequencies support the identification of the IR spectrum. The observed frequencies for the B-10 species are 2165, 2161, 1371, 1354, and 1029 cm(-1). Upon UV photolysis, the BCl(N-3)(2) peaks decreased, and new peaks appeared at 1677 and 1724 cm(-1) with a 4:1 intensity ratio, indicating a single B atom containing molecule. Based on ab initio calculations, the known photolysis mechanisms for similar compounds and the isotopic splitting, these peaks are assigned as the ring-breathing mode in ClBN2, a compound in which the B and the two N atoms form a three-membered ring.