Reactions of 2-(arylazo)aniline with iridium trichloride: Synthesis, characterization and structure of new cyclometallated complexes of iridium(III)
摘要:
Reactions of 2-(arylazo)aniline, HL (H represents the dissociable protons upon orthometallation and HL is p-RC6H4N=NC6H4-NH2; R=H for HL1; CH3 for HL2 and Cl for HL3) with IrCl3 in methanol afforded ortho-metallated complexes of composition (L)(HL)IrCl2 (2) and (L)(MeOH)IrCl2 (3), respectively. Complex (L)(MeOH)IrCl2 (3) converted into (L)(CH3CN)IrCl2 (4) upon refluxing in acetonitrile. The X-ray structure of the complexes (L-1)(HL1)IrCl2 (2a) and (L-3)(CH3CN)IrCl2 (4c) have been determined and characterized unequivocally. The anionic L binds the metal in tridentate (C, N, N) manner for all the complexes. (C) 2011 Elsevier B.V. All rights reserved.
Reactions of 2-(arylazo)aniline with iridium trichloride: Synthesis, characterization and structure of new cyclometallated complexes of iridium(III)
摘要:
Reactions of 2-(arylazo)aniline, HL (H represents the dissociable protons upon orthometallation and HL is p-RC6H4N=NC6H4-NH2; R=H for HL1; CH3 for HL2 and Cl for HL3) with IrCl3 in methanol afforded ortho-metallated complexes of composition (L)(HL)IrCl2 (2) and (L)(MeOH)IrCl2 (3), respectively. Complex (L)(MeOH)IrCl2 (3) converted into (L)(CH3CN)IrCl2 (4) upon refluxing in acetonitrile. The X-ray structure of the complexes (L-1)(HL1)IrCl2 (2a) and (L-3)(CH3CN)IrCl2 (4c) have been determined and characterized unequivocally. The anionic L binds the metal in tridentate (C, N, N) manner for all the complexes. (C) 2011 Elsevier B.V. All rights reserved.