Synthesis, characterization, and structure of [GaCl3(NHC)] complexes

Nicolas Marion, Eduardo C. Escudero-Adan, Jordi Benet-Buchholz, Edwin D. Stevens, Louis Fensterbank, Max Malacria, Steven Patrick Nolan

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

The reaction of GaCl3 with 1 equiv of NHC ligand (NHC = N-heterocyclic carbene) at room temperature in pentane yielding the corresponding 1:1 adduct [GaCl3(NHC)] is reported. Using IPr (N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene), IMes (N,N'-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene), and IPrMe (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene), three NHC-containing Ga-III adducts have been synthesized in good yields and fully characterized by H-1 and C-13 NMR, HRMS, elemental analysis, and X-ray diffraction studies for the first time. The solid-state structure of [GaCl3(IMes)] presented, as a special feature, two different positions of the main molecule with an occupation ratio of 50%. These positions of the molecule are shifted with respect to each other along the c-axis by 0.96 angstrom.

Original languageEnglish
Pages (from-to)3256-3259
Number of pages4
JournalOrganometallics
Volume26
Issue number13
DOIs
Publication statusPublished - 18 Jun 2007

Keywords

  • N-HETEROCYCLIC-CARBENE
  • ALPHA,BETA-UNSATURATED CARBONYL-COMPOUNDS
  • GACL3-CATALYZED ORTHO-ETHYNYLATION
  • GROUP-13 TRIHYDRIDES
  • GALLIUM TRICHLORIDE
  • MOLECULAR-STRUCTURE
  • LEWIS-ACIDS
  • DERIVATIVES
  • INDOLES
  • CYCLOISOMERIZATION

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