Abstract
A series of dibutyltin(IV) complexes of Schiff bases derived from 2-minophenol and benzaldehyde (HL1), anisaldehyde (HL2), 2-furfural (HL3), acetophenone (HL4), benzylmethyl ketone (HL5), benzil (HL6), salicylaldehyde (H2L7), 2-hydroxy-l-naphthaldehyde (H2L8) and 2-hydroxy-acetophenone (H2L9) have been synthesized by the reaction of dibutyltin(IV) oxide with the preformed Schiff bases in 1:l or 1:2 molar ratios in benzene with azeotropical removal of water. The analytical data are in agreement with the proposed stoichiometries of the complexes. Molar conductance values of the complexes (10−−3 M) in methanol indicate their non-electrolytic nature. Cis-trigonal bipyramidal or trans-octahedral geometries have been proposed for the complexes Bu2SnL2 (where HL = HL1 to HL6) and Bu2SnL (where H2L = H2L7 to H2L9), respectively, on the basis of electronic, infrared, far-infrared, 1H, 13C and 119Sn NMR, and 119Sn Mössbauer spectral studies. All the Schiff bases and their dibutyltin complexes undergo reduction in the range -0.28 V to -2.5 V and their polarographic reduction is diffusion controlled and irreversible.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
