Diorganotin halide carboxylates, thiocarboxylates and halide haloacetates

Synthesis and characterization of diphenylmethyltin(IV) mono‐, di‐, and trichloroacetate

“…In fact, similar to other triorganotin acetates [17], polymeric solid state structures of diphenylmethyltin acetates in solution depolymerize to their monomers as a four-coordinated species and then coordination of solvent returns it to the fiveor six-coordinated status. The 2 J ( 119 Sn C 1 H) value also slightly increases with increasing chlorine substitution on the acetate group, a trend which is similar to that found for trimethyltin chloroacetates and opposite to that of dimethyltin chloride chloroacetates [16]. The increase in 2 J ( 119 Sn C 1 H) values with increase in chlorine substitution on the acetate group may be interpreted as an increase in Lewis acidity of tin rather than as a significant reduction in Lewis basicity of the carboxylate carbonyl oxygen.…”

“…The predominant effect may be revealed only by crystal structure determination. Surprisingly, ν asym (CO 2 ) absorption bands of all diphenylmethyltin acetate in the solid state show splitting with frequency separation of about 15-25 cm −1 , such splitting observed in solution for dimethyltin chloride acetates, which previously has been attributed to the rotational isomerism [16], may be only because of the lowering symmetry of the SnC 3 skeleton.…”

Morphological studies on Sn-O coordination driving self-assembly of well-defined organotin-containing block copolymers

“…For the synthesis of the monomer, acetoxydibutyltin methacrylate (ADBTMA), some improvements were made on the basis of previous literatures [47,48] . Herein, we employed a step-adding material in a simple one-pot methodology to prepare the organotin monomer and characterized it by 1 H-NMR, 13 C-NMR and 119 Sn-NMR (Scheme 1).…”

“…In addition, based on exchange reaction between diorganotin dicarboxylate and diorganotin dichloride [47,48] , the reactions of these three different ratio block copolymers with the different amounts of diorganotin dichloride for regulating the self-assembly of three block copolymers were designed. For example, when one equivalent Bu 2 SnCl 2 to organotin units was added, the average size of nanoparticles sharply reduced.…”

Synthesis, Characterization and Thermal Studies of Transition Metal Complexes with O-, S-Donor Ligands

“…The difference between υ COO asym and υ COO sym is important in the prediction of the nature of the binding mode of the ligand [21][22][23]. The difference between the two vibration frequencies was in the range of 142-198cm -1 , suggesting a bidentate coordination mode of the COO-in the complexes [24].…”