Coordination Chemistry of N-Heterocyclic Stannylenes: A Combined Synthetic and Mossbauer Spectroscopy Study

Stephen M. Mansell, Rolfe H. Herber*, Israel Nowik, Douglas H. Ross, Chris Russell, Duncan F. Wass

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

48 Citations (Scopus)

Abstract

The N-heterocyclic stannylenes (NHSns), [(Dipp)N(CH2)(n)N(Dipp)Sn] (Dipp = 2,6- (Pr2C6H3)-Pr-i; n = 2, 1; n = 3, 5) and [(Bu-t)N(CHMe)(2)N(Bu-t)Sn] (10) are competent ligands toward a variety of transition metal centers, as seen in the complexes [W(CO)(s)center dot 1] (2), [(OC)(4)Fe(mu-1)(2)Fe(CO)(4)] (3), [(OC)(4)Fe(mu-1)Fe(CO)(4)] (4), [Fe(CO)(4)center dot 5](n) (6, n = 1 or 2), [(OC)(4)Fe(mu-5)Fe(CO)(4)] (7), [Ph3PPt(mu-1)(2)PtPPh3] (8), [Fe(CO)(4)center dot 10] (11), and [(eta(5)-C5H5)(OC)(2)Mn center dot 10] (12). X-ray crystallographic studies show that the NHSns are structurally largely unperturbed binding to the metal, but in contrast to the parent NHCs, NHSns often adopt a bridging position across dinudear metal units. The balance between terminal and bridging positions for the stannylene is evidently closely balanced as shown by the observation of both monomers and dimers for 6 in the solid state and in solution. Sn-119 and Fe-57 Mossbauer spectroscopy of the complexes shows the tin atoms in such complexes to be consistent with electron deficient Sn(II) centers.

Original languageEnglish
Pages (from-to)2252-2263
Number of pages12
JournalInorganic Chemistry
Volume50
Issue number6
DOIs
Publication statusPublished - 21 Mar 2011

Keywords

  • TRANSITION-METAL-COMPLEXES
  • THERMALLY STABLE SILYLENES
  • CARBENE ANALOGS
  • STRUCTURAL-CHARACTERIZATION
  • HOMOLEPTIC COMPLEXES
  • MOLECULAR-STRUCTURES
  • TIN ANALOGS
  • REACTIVITY
  • GERMYLENES
  • LIGAND

Fingerprint

Dive into the research topics of 'Coordination Chemistry of N-Heterocyclic Stannylenes: A Combined Synthetic and Mossbauer Spectroscopy Study'. Together they form a unique fingerprint.

Cite this