Phenyltin halides

An independent check for tetrahedral compounds was not possible, but comparisons between Tables XIII and XIV suggest that the [L]-values cannot simply be transferred from one geometry to another. It has recently been suggested that the phenyltin halides Ph3SnX and... 

Column temperatures of llO C for butyltin halides, 180 C for phenyltin halides, and 210°C for octyltin halides were found to be satisfactory. Small variations were made from these temperatures as the columns were progressively exhausted after continuous use. 

Figures 122 and 123 illustrate the resolution for typical butyl-tin and octyltin mixtures. A quantitative calibration is also made for the corresponding alkyl halide present in the mixture usually at less than 5% w/w. The chromatographs for phenyltins are substantially similar to those for the octyltins, with slightly less resolution of the early peaks.

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