title: [Synthesis and spectral characterization of boron complexes of bis-schiff base from acylpyrazolone].
abstract: Three novel bis-schiff base complexes [B(PMaFP)2en]Ac, [B(PMaFP)2pen]Ac and [B(PMTHP)2en]Ac have been synthesized, where (HPMalphaFP)2 en = N,N'-bis [(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl) alpha-furylmethylidyne] ethylenediimine, (HPMalphaFP)2pen = N,N'-bis[(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl) alpha-furylmethylidyne]-o-phenylenediimine and (HPMTHP)2en = N,N'-bis[(1-phenyl-3-methyl-5-oxo-4-pyrazolinyl)-2-thenoylmethylidyne] ethylenediimine. They were characterized by elemental analysis, IR, UV-Vis, 1H NMR, 13C NMR, and molar conductance measurements. The results show that the bis-schiff base is a quadridentate ligand and boron is four-coordinated in the complexes.
authors.affiliation: Department of Chemistry, Harbin Normal University, Harbin, China.
authors.forename: Jin-zhou
authors.initials: JZ
authors.lastname: Li
authors.forename: Yu-mei
authors.initials: YM
authors.lastname: An
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.forename: Wen-jin
authors.initials: WJ
authors.lastname: Yu