cis-Dithiolatonickel as metalloligand to dinitrosyl iron units: the di-metallic structure of Ni(-SR)[Fe(NO)2] and an unexpected, abbreviated metalloadamantyl cluster, Ni2(-SR)4[Fe(NO)2]3. Academic Article uri icon


  • The reaction of Fe(CO)(2)(NO)(2) and Ni(N(2)S(2)) (N(2)S(2) = N,N'-Bis(2-mercaptoethyl)-1,4-diazacycloheptane) by a single CO replacement yields [Ni(N(2)S(2))]Fe(NO)(2)(CO), while an excess of Fe(CO)(2)(NO)(2) leads to triply bridging thiolate sulphurs in a cluster of core composition Ni(2)S(4)Fe(3), lacking one Fe(NO)(2) unit to complete the adamantane-like structure. This structural type was earlier identified in a Cu(I)Cl aggregate of M(II)(N(2)S(2)) (M(II) = Ni, Cu), in which complete M(II)(2)S(4)Cu(I)(4) core structures were obtained as the major, and, in the case of Cu(II)(N(2)S(2)), the incomplete Cu(II)(2)S(4)Cu(I)(3) as a minor, product. The full Ni(2)S(4)Fe(4) cluster has not yet been realized for Fe = Fe(NO)(2). Computational analysis of the NiFe-heterobimetallic complex addresses structural issues including a Ni-S-Fe of 90 in the bimetallic complex.

published proceedings

  • Dalton Trans

author list (cited authors)

  • Hsieh, C., Chupik, R. B., Brothers, S. M., Hall, M. B., & Darensbourg, M. Y.

citation count

  • 17

complete list of authors

  • Hsieh, Chung-Hung||Chupik, Rachel B||Brothers, Scott M||Hall, Michael B||Darensbourg, Marcetta Y

publication date

  • June 2011