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- W2092433750 abstract "Two 1∶1 interhalogen adducts of N-methylbenzothiazole-2-selone (mbts) have been prepared and crystallographically characterised: mbts·IBr (1) and mbts·ICl (2). Both exhibit the charge transfer ‘spoke’ structure consisting of a linear Se–I–X arrangement (X = Br or Cl) where d(C–Se) increases from that seen for mbts by 0.058(5) and 0.062(8) Å (1 and 2 respectively); d(C–N) decreases by 0.019(4) and 0.019(9) Å. This indicates electron density moves towards the Se–I–X moiety upon co-ordination, causing a partial positive charge to reside on the nitrogen atom. The I–X bond lengthens with respect to the unco-ordinated species for both molecules. The addition of two equivalents of ICl to mbts gave a dark purple material of stoichiometry C8H7Cl2.9I1.1NSSe 3; the fractional stoichiometry for iodine and chlorine may be indicative of ‘halogen scrambling’. An additional product from this reaction was examined crystallographically and found to consist of the ion pair [C8H7NSCl]+[ICl2]–4, i.e. the C–Se double bond has been completely cleaved and replaced by a C–Cl single bond. The positive charge is again supported mostly by the nitrogen atom; d(C–N) decreases to 1.294(10) Å indicating a double bond." @default.
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- W2092433750 date "1999-01-01" @default.
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- W2092433750 title "The reaction of N-methylbenzothiazole-2-selone with the interhalogens iodine monobromide and iodine monochloride" @default.
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- W2092433750 doi "https://doi.org/10.1039/a902188d" @default.
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