Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 12 (December 2002)

Acta Cryst. (2002). C58, o700-o703 [doi:10.1107/S0108270102018760]

Trimethyl[3-methyl-1-(o-tolenesulfonyl)indol-2-ylmethyl]ammonium iodide and benzyl[3-bromo-1-(phenylsulfonyl)indol-2-ylmethyl]tolylamine

P. R. Seshadri, D. Velmurugan, J. Govindaraj, S. Kannadasan, P. C. Srinivasan, S. Shanmuga Sundara Raj, H.-K. Fun and M. J. Kim

Abstract: The title compounds, C₂₀H₂₅N₂O₂S⁺·I^-, (I), and C₂₉H₂₅BrN₂O₂S, (II), respectively, both crystallize in space group P $\overline 1$ . The pyrrole ring subtends an angle with the sulfonyl group of 33.6° in (I) and 21.5° in (II). The phenyl ring of the sulfonyl substituent makes a dihedral angle with the best plane of the indole moiety of 81.6° in (I) and 67.2° in (II). The lengthening or shortening of the C-N bond distances in both compounds is due to the electron-withdrawing character of the phenylsulfonyl group. The S atoms are in distorted tetrahedral configurations. The molecular structures are stabilized by C-HO and C-HI interactions in (I), and by C-HO and C-HN interactions in (II).

Formula: C₂₀H₂₅N₂O₂S⁺·I^- and C₂₉H₂₅BrN₂O₂S

Online 8 November 2002


	Structure factor file (CIF format) (247.9 kbytes) Contains datablock I

	Structure factor file (CIF format) (212.6 kbytes) Contains datablock II

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