Diorgano-gallium and -indium complexes with salen ligands: Synthesis, characterization, crystal structure and C-C coupling reactions

作者：Kushwah Nisha P; Pal Manoj K; Wadawale Amey P; Jain Vimal K^*

来源：Journal of Organometallic Chemistry, 2009, 694(15): 2375-2379.

DOI：10.1016/j.jorganchem.2009.03.029

• Gallium
• Indium
• Phenolate
• Schiff base
• X-ray structures

The reactions of triorgano-gallium and -indium etherate with salen ligands in benzene afforded complexes of the type [R(2)MOC(6)H(4)CR'=NCH(2)-](2), (R/M/R' = Me/Ga/H (1), Et/Ga/H (2), Me/In/H (3), Et/Ga/Me (4)) in nearly quantitative yields. These complexes have been characterized by elemental analysis, IR, UV-Vis, NMR ((1)H and (13)C{(1)H}) and mass spectral data. The organogallium complexes showed photoluminescence in blue-green region. The complex, [(Me(2)Ga)(2)(O-(C(6)H(4))CH=N-CH(2)-)(2)] on recrystallization from benzene-hexane and dichloromethane gave orthorhombic and monoclinic forms, respectively. Both the forms are dimeric with gallium atoms acquiring a distorted tetrahedral configuration defined by two methyl groups, phenolate oxygen and azomethene nitrogen. The complexes [(Me(2)Ga)(2)(O-(C(6)H(4))CH=N-CH(2)-)(2)] and [(Me(2)In)(2)(O-(C(6)H(4))CH=N-CH(2)-)(2)] have been employed as alkylating agent for C-C coupling reaction of 1-bromonaphthalene in presence of PdCl(2)(PPh(3))(2).

• 出版日期2009-7-1