Coordination complexes of TiX4 (X = F, Cl) with a bulky N-heterocyclic carbene: Syntheses, characterization and molecular structures

Adinarayana Doddi, Christian Gemel, Rüdiger W. Seidel, Manuel Winter, Roland A. Fischer

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Reactions of the sterically encumbered N-heterocyclic carbene IPr (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, [:C{[N(2,6-iPr 2C6H3)]CH}2]) (1) with TiX 4 (X = Cl, F) in diethyl ether or THF afford the metal halide mono- and bis-carbene complexes, [Cl4Ti-C{N(2,6-iPr 2C6H3)CH}2] (2), [Cl 4Ti{C{N(2,6-iPr2C6H 3)CH}2}2] (3) and [F4Ti{C{N(2,6- iPr2C6H3)CH}2} 2] (4). Compounds 2-4 have been completely characterized by elemental analysis, NMR spectroscopic methods (1H, 13C and 19F NMR) and single crystal X-ray structure determination. Furthermore, the reaction of [Cl4Ti-C{N(2,6-iPr 2C6H3)CH}2] (2) with ZnMe 2 yields monomeric [ZnCl2·IPr] (5), involving the transfer of carbene and chlorido ligands from Ti (IV) to Zn(II).

Original languageEnglish
Pages (from-to)1103-1108
Number of pages6
JournalPolyhedron
Volume52
DOIs
StatePublished - 22 Mar 2013
Externally publishedYes

Keywords

  • N-heterocyclic carbene
  • Titanium
  • X-ray crystallography
  • Zinc

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