Antimony(III) and bismuth(III) complexes containing O- and N-chelating ligands: synthesis, FT-IR, 1H and 13C NMR spectroscopic and mass spectrometric studies

Abstract

Reaction of SbCl3 with sodium salt of vanillinidene-2-methylaminobenzene (vmabH) and salicylidene-3-nitroaminobenzene (snabH) in 1:1 and 1:2 molar ratios afforded complexes of the type [Sb(η2-sb)nCl3−n ](1–4) [where sb=vanillinidene-2-methyl-1-aminobenzene (vmabH) (1, 2) and salicylidene-3-nitroaminobenzene (snabH) (3, 4)]. Bismuth complexes of type [Bi(PBT)nCl3−n ] (5, 6) have been synthesized similarly by the reaction of BiCl3 with sodium salt of 2-(o-hydroxyphenyl)-benzothiazole (HPBT) in different molar ratios (where n=1−2). These newly synthesized complexes of antimony and bismuth have been characterized by elemental (C, H, N, S, Sb, and Bi) analysis and spectroscopic IR, 1H NMR, and 13C NMR techniques. The molecular composition of three selective complexes has been confirmed by mass spectrometric studies.

Keywords

• antimony(iii) complexes
• bismuth(iii) complexes
• 2-(o-hydroxyphenyl)-benzothiazole (hpbt)