Knowledge Bank

Infrared spectra of $Si(C\equiv CH)4,Ge(C\equiv CH)4$, and $Sn(C\equiv CH)4$ have been measured from 33 to $4000cm-1$ for the vapor and for solutions in several solvents. Raman spectra with polarizations were obtained for solutions. $T1$ symmetry was assumed and was completely satisfactory. Fundamentals for species $a1$ and $f2$ could be assigned with little difficulty, but only a few of the Raman active e fundamentals were observed.