Stable, six coordinated Bu2SnLA type complexes have been prepared [where LH =
RCOC:C(OH)N(C6H5)N:︹CCH3; R = -4-F-C6H4-(L1H), R = -4-Cl-C6H4-(L2H), R= -4-Br-C6H4-(L3H), R=
-CF3(L4H) and AH=C(O)C6H4C(O)︹NCHR′COOH; R'= -H(A1H), -CH3(A2H), -CH(CH3)2(A3H)] by the
interaction of 1:1:1 molar ratios of di-n-butyltin(IV) dichloride with corresponding organic moieties in
refluxing benzene using two moles of Et3N as a base. In these complexes LH and AH behave as bidentate
and coordination is taking place through oxygen, this is inferred from IR and 13C NMR studies. These
complexes possess tin atoms in skew trapezoidal bipyramidal geometry with the C-Sn-C angles ranging from
149.88° to 156.84°. Some of these complexes with their corresponding organic moieties (LH, AH) were
tested for their antimicrobial activities.