title: Trimethyl[3-methyl-1-(o-tolenesulfonyl)indol-2-ylmethyl]ammonium iodide and benzyl[3-bromo-1-(phenylsulfonyl)indol-2-ylmethyl]tolylamine.
abstract: The title compounds, C(20)H(25)N(2)O(2)S(+).I(-), (I), and C(29)H(25)BrN(2)O(2)S, (II), respectively, both crystallize in space group P-1. The pyrrole ring subtends an angle with the sulfonyl group of 33.6 degrees in (I) and 21.5 degrees in (II). The phenyl ring of the sulfonyl substituent makes a dihedral angle with the best plane of the indole moiety of 81.6 degrees in (I) and 67.2 degrees 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-H.O and C-H.I interactions in (I), and by C-H.O and C-H.N interactions in (II).
authors.affiliation: Department of Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: P R
authors.initials: PR
authors.lastname: Seshadri
authors.forename: D
authors.initials: D
authors.lastname: Velmurugan
authors.forename: J
authors.initials: J
authors.lastname: Govindaraj
authors.forename: S
authors.initials: S
authors.lastname: Kannadasan
authors.forename: P C
authors.initials: PC
authors.lastname: Srinivasan
authors.forename: S
authors.initials: S
authors.lastname: Shanmuga Sundara Raj
authors.forename: H K
authors.initials: HK
authors.lastname: Fun
authors.forename: M J
authors.initials: MJ
authors.lastname: Kim