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Dichloro and alkylchloro gallium derivatives of dichalcogenoimidodiphosphinate ligands: isolation of a spirogallium cation.

Authors
  • Muñoz-Hernández, Miguel-Angel
  • Montiel-Palma, Virginia
  • Huitrón-Rattinger, Estefanía
  • Cortés-Llamas, Sara
  • Tiempos-Flores, Norma
  • Grevy, Jean-Michel
  • Silvestru, Cristian
  • Power, Philip
Type
Published Article
Journal
Dalton transactions (Cambridge, England : 2003)
Publication Date
Jan 07, 2005
Issue
1
Pages
193–199
Identifiers
PMID: 15605163
Source
Medline
License
Unknown

Abstract

Dichloro and chloromethyl Ga(III) complexes of general formulae [XClGa-eta2-{R2P(E)NP(E'R'2-E,E'}](X = Cl, R, R'= Ph, E, E'= O (1), S (2), Se (3); R = Ph, R'= OEt, E = O, E'= S (4); R = Me, R'= Ph, E, E'= S (5) and X = Me, E, E'= O (6), S (7), Se (8)) were synthesised by either metathesis reactions between GaCl3 and the potassium salt of the ligand (X = Cl) or by methane eliminations from in situ prepared GaMe2Cl and the protonated ligands LH (X = Me). Redistribution reaction of (3) in either CDCl3 or THF afforded the solvent-free tetracoordinate gallium spirocycle cation [Ga-{eta2-{Ph2P(Se)NP(Se)Ph2-Se,Se'})2]+ (9+). The molecular structures of complexes 2, 4, 5, 7 and 9(+) show non-planar gallacycle rings.

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