Add time:07/12/2019         Source:sciencedirect.com

The IR spectra (300–4000 cm−1) of bis-(N,N-diethyldithiocarbamato)-nickel(II) as N2 matrix and oriented polycrystalline layer are reported. All the observed bands are assigned and classified on the grounds of their polarisation in the symmetry classes of D2h, the highest possible molecular symmetry.Remarkably, polarisation of the absorptions around 1000 cm−1 rules out the assignment to any C-S stretching, in contrast with previous assignments. The room temperature crystal spectra do not show evidence for crystal splitting. The matrix spectrum shows features related to the existence of rotamers around the H2C-N bond, which give useful assistance in the assignment.

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