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cis-Dithiolatonickel as metalloligand to dinitrosyl iron units: the di-metallic structure of Ni(μ-SR)[Fe(NO)(2)] and an unexpected, abbreviated metalloadamantyl cluster, Ni(2)(μ-SR)(4)[Fe(NO)(2)](3).
MedLine Citation:
PMID:  21552576     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Chung-Hung Hsieh; Rachel B Chupik; Scott M Brothers; Michael B Hall; Marcetta Y Darensbourg
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-6
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Texas A&M University, 3255 TAMU, College Station, TX, USA. marcetta@chem.tamu.edu.
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