Comparisons of zinc with cadmium in N 2 S 2 coordination and as S-bonded adducts to tungsten carbonyls Academic Article uri icon

abstract

  • The synthesis and characterization of bis-mercaptoethanediazaheptane cadmium(II) is reported and compared to the analogous zinc complex. Of significance is the dimeric form of the [Zn(N(2)S(2))](2) complex achieves penta-coordination about zinc through a bridging thiolate whereas cadmium engages two thiolate as S-bridges resulting in hexa-coordination about cadmium within a coordination polymer whose X-ray crystal structure is reported here. In the presence of W(CO)(5), this polymer breaks up, generating dimeric [Cd(N(2)S(2))](2) with two W(CO)(5) units appended to the terminal thiolates, a feat that is not observed for the zinc dimer analogue. The greater thiophilicity of cadmium over zinc is noted in several features of these complexes.

altmetric score

  • 0.25

author list (cited authors)

  • Denny, J. A., Foley, W. S., Almaraz, E., Reibenspies, J. H., Bhuvanesh, N., & Darensbourg, M. Y.

citation count

  • 5

publication date

  • January 2012