Structural studies of metal diselenocarbamates. Crystal and molecular structures of nickel(II), copper(II), and zinc(II) diethyldiselenocarbamates

1 January 1971

journal article
Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A

p. 264-269
https://doi.org/10.1039/j19710000264

Abstract

The crystal and molecular structures of nickel(II), copper(II), and zinc(II) diethyldiselenocarbamates have been determined and refined by anisotropic least-squares methods to final R values of 0·076, 0·115, and 0·075 respectively. Isomorphism and isostructurality with the analogous diethyldithiocarbamates permit a significant comparison between the M–Se and C–Se and the corresponding M–S and C–S bond lengths. An average increase of 0·113 Å in the M–Se bond length with respect to that of M–S was found, while C–Se was, on average, longer by 0·152 Å than the C–S bond lengths. These different increases indicate a higher order for the selenium–metal bonds than for the sulphur–metal bonds in the diethyldithiocarbamates.

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