Structural and vibrational properties of diglyme and longer glymes.

The conformational states of diglyme in both the solid and liquid states have been determined by an integrated use of both IR and Raman spectroscopy together with ab initio/density functional theory (DFT) calculations. Using knowledge from diglyme also made possible the study of the conformational state of longer glymes, including a quantitative study of the D-LAM mode. We hereby unambiguously can assign the (tgt)(n) conformational state to all glymes and PEO in the solid state.