FORCE CONSTANTS OF $CF_{3}COZ$ AND $CH_{2}COZ$ COMPOUNDS

Abstract

Normal-coordinate analyses (using a modified UBFF) have been carried out for $CF_{3}CHO$, $CF_{a}CFO$ and $CF_{3}COCI$, and compared with parallel calculations for the corresponding $CH_{a}$ compounds. The structures, assignments and force-field restrictions used will be discussed, as will the resulting force constants and their chemical implications.