Investigations of tri-t-butyl tin hydride complexes of transition metals in small molecule activation and catalysis

Sedigheh Etezadi, Anjaneyulu Koppaka, Mohan M. Gamage, Burjor Captain

Research output: Contribution to journalReview articlepeer-review

7 Scopus citations


Transition metal complexes containing the sterically encumbered SnBut3 group are the focus of this brief review. The ability of tin compounds to modify both heterogeneous and homogeneous catalysts has been known for some time. Our recent efforts center on utilizing the reagent But3SnH to investigate the influence of this ligand, which combines a steric profile similar to that of PBut3, with functional reactivity at the Sn-H bond. These properties of the SnBut3 ligand allow preparation of new complexes and comparison of their structures and reactivities with less encumbered trialkyl stannanes. This has allowed fine-tuning of the strained molecular geometry at the coordinatively unsaturated site and study of how that influences small molecule activation. Reversible H2 binding and activation, H2–D2 scrambling to form HD, C-H activation of bound ligands and solvents, catalytic hydrogenation, and catalytic hydrostannylation have all been observed for select complexes. In addition, a range of metal cluster complexes incorporating stannane moieties have been prepared and structurally characterized. The But3SnH ligand provides a new dimension for preparation of new molecular architectures with potential applications in homogeneous and heterogeneous catalysis.

Original languageEnglish (US)
Pages (from-to)122-132
Number of pages11
JournalJournal of Organometallic Chemistry
StatePublished - 2017


  • Bimetallic
  • Catalysis
  • Steric strain
  • Tin
  • Unsaturation

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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