Tricyclohexyltin bromide

The following chemicals are utilized without further purification (from Ventron-Alfa Inorganics unless noted otherwise), dibutyltin dichloride (Fisher), diethyltin dichloride, dimethyl-tin dichloride, dioctyltin dichloride, dilauryltin dichloride (Metallcxner Labs.), triphenyltin chloride, tri-n-butyltin chloride (Aldrich), tribenzyltin chloride, tricyclohexyltin bromide, tri-n-propyltin chloride, dibutyltin dibromde, diphenyltin dichloride (Metallomer Labs.), dextran (molecular weight 200,000-300,000 United States Biochemical Corp.), triethylenediamine (Eastman), triethylamine (Eastanan), piperdine (Matheson, Coleman and Bell), N,N-dimethylaniline (Fisher), Aniline (Baker), 4-dimethylamino-pyridine (gift from Reilly Tar and Chemical Corp.), 3,5-lutidine (Aldrich) and pyridine (Baker). 

The following chemicals were used without further ourifi-cation dibutyltin dichloride (Fisher Scientific Co., Fairlawn, N.J.), diphenyltin dichloride (Metallomer Laboratories, Maynard, Mass.), dibutyltin dibromide, dilauryltin dichloride, tri-n-propyltin chloride, diethyltin dichloride, dimethyltln dichloride, dioctyltin dichloride, tricyclohexyltin bromide, triphenyltin dichloride and tribenzyltin chloride (all from Ventron-Alfa Inorganics, Danvers, Mass.), tri-n-butyltin chloride (Aldrich Chemical Co., Milwaukee, Wis.) and dextran (molecular weight - 200,000 - 300,000 United States Biochemical Corp., Cleveland, Ohio). 

Some other triorganotin monochlorides are not associated in the solid state. Tri-phenyltin monochloride (Sn-Cl 2.353 A) [186] was described as discrete unassociated in the solid state and even tricyclohexyltin chloride was first described as monomeric [187], like the triorganotin bromides and iodide investigated so far (see Table 4.1). Tris(m-tolyl)tin chloride (Sn-Cl 2.379 A) and tris(3,5-dimethylphenyl)tin chloride (Sn-Cl 2.357 A) are also discrete monomers [187a]. 

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