Vibrational studies of the cluster carbonyls of ruthenium and osmium. Part 2. Single-crystal Raman and infrared data for [Ru3(CO)12] in the CO stretching region

Abstract

Single-crystal Raman and i.r. data are used to give a complete assignment of the crystal modes of [Ru₃(CO)₁₂]. The results are definitive in so far as the complex molecule retains its D_3h vibrational identity in the crystal. They are used to confirm the solution assignments, and the validity of the oriented gas-phase approximation for complex molecules is discussed.