Spectral studies and antimicrobial activities of organosilicon(IV) and organotin(IV) complexes of nitrogen and sulfur donor Schiff bases derived from 4-amino-5-mercapto-3-methyl-s-triazole
Affiliations: Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India | Department of Bio-technology, Kurukshetra University, Kurukshetra, Haryana, India
Abstract: Some new organosilicon(IV) and organotin(IV) complexes formulated as R2SiCl[L1], R2SiCl[L2], R2Si[L1]2, R2Si[L2]2, R2SnCl[L1], R2SnCl[L2], R2Sn[L1]2, and R2Sn[L2]2 have been synthesized by the reactions of Me2SiCl2 and Me2SnCl2 with Schiff bases in 1:1 and 1:2 molar ratios. L1 [2-(chlorobenzylidineamino)-5-mercapto-3-methyl-s-triazole] and L2[4-(flourobenzylidineamino)-5-mercapto-3-methyl-s-triazole] have been synthesized by the condensation of 2-chlorobenzaldehyde and 4-flourobenzaldehyde with 4-amino-5-mercapto-3-methyl-s-triazole. Newly synthesized organosilicon and organotin complexes have been characterized by elemental analysis, molar conductance measurements, spectral studies, including UV, IR, 1H, 13C, 29Si, and 119Sn NMR. The nature of these complexes is non-electrolytic. With the help of these techniques, trigonal bipyramidal and octahedral geometries are proposed for the newly synthesized complexes. The biological activity of these complexes against various bacteria and fungi has been investigated and then compared with free ligands.
