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- W2037431098 abstract "The reaction of the tertiary phosphites (RO)3P (R = Ph, 4-MeC6H4, 4-ButC6H4, 2,4-But2C6H3, 2,6-Me2C6H3, 2,4,6-Me3C6H2 or 2-PhC6H4) with one and two mole equivalents of diiodine has been investigated. In all cases the tetra-iodide compounds (RO)3PI4 were isolated regardless of the stoichiometry employed. The three compounds (RO)3PI4 (R = Ph, 4-MeC6H4 or 2,4-But2C6H3) have been crystallographically characterised for comparative purposes and represent the first examples of crystal structures for compounds of this formula. The structural characterisation of these compounds illustrates the structural dependence of (RO)3PI4 compounds on R. For (RO)3PI4 (R = Ph or 2,4-But2C6H3) the compounds exist as discrete molecular species whereas, for R = 4-MeC6H4 the triiodide fragments of discrete molecules link via long-range I–I interactions to form a dimer. Additionally, d(I–I) for the (RO)3PI and I3 fragments is sensitive to R, being 3.227(1) Å for (2,4-But2C6H3O)3PI4 and 3.3888(7) Å for (PhO)3PI4. In contrast to the analogous R3PI4 compounds, which show great variation in δ in their 31P-{1H} NMR spectra depending on R, the (RO)3PI4 compounds described all exhibit quite similar δ values irrespective of R." @default.
- W2037431098 created "2016-06-24" @default.
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- W2037431098 date "2000-01-01" @default.
- W2037431098 modified "2023-10-18" @default.
- W2037431098 title "The reaction of tertiary aryl phosphites with diiodine at ambient temperatures; structural characterisation of the tertiary phosphite tetraiodides (PhO)3PI4, (4-MeC6H4O)3PI4 and (2,4-But2C6H3O)3PI4" @default.
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- W2037431098 doi "https://doi.org/10.1039/a909057f" @default.
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