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Extent and rate of solubilization of tin by iodomethane–water mixtures
Author(s) -
Craig Peter J.,
Laurie Stuart H.,
McDonagh Reman
Publication year - 1998
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/(sici)1099-0739(199804)12:4<237::aid-aoc699>3.0.co;2-k
Subject(s) - chemistry , tin , dissolution , alkyl , hydride , halide , hydrolysis , metal , inorganic chemistry , reaction rate , activation energy , organic chemistry , catalysis
The dissolution of tin metal by iodomethane–water mixtures has been studied and the influence of several parameters on both the extent and rate of reaction investigated. The rate‐determining step shows a pseudo‐first‐order dependence on iodomethane (CH 3 I). The reaction is strongly dependent upon both water and oxygen. The activation energy of only 16 kJ mol −1 is interpreted in terms of a facile bond‐breaking and making process at the metal surface, generating methyltin species. Analysis by hydride generation and GC–AA confirmed the formation of methylated species ranging from monomethyl‐ to tetramethyl‐tin; inorganic tin (from hydrolysis) was the major form, however. These findings are similar to those made earlier by us on the solubilization of arsenic from GaAs by alkyl halide‐water mixtures, and a similar multi‐step scheme is proposed. © 1998 John Wiley & Sons, Ltd.