LASER-ABLATED BORON ATOM REACTION WITH CARBON-DISULFIDE - INFRARED-SPECTRUM OF SBCS IN SOLID ARGON AND AB-INITIO GEOMETRY AND FREQUENCY CALCULATIONS FOR POSSIBLE PRODUCTS

Codeposition of laser ablated boron atoms with a mixture of carbon dis ulfide in argon produced SBCS with absorption bands at 1201.9 and 1226 .8 cm-1 for B-11 and B-10, respectively. Carbon-13 substitution shifte d these bands to 1188.2 and 1210.3 cm-1. Sulfur-34 isotopic counterpar ts were observed at 1192.7 and 1217.6 cm-1 and scrambled isotopic sulf ur revealed intermediate new bands at 1197.2, 1222.8, and 1221.8 cm-1, respectively. Ab initio calculations of isotopic frequencies confirme d the identification of the SBCS insertion product.