Acta Crystallographica Section C

Volume 65, Part 9 (September 2009)

organic compounds

 

Three-dimensional networks in bis(imidazolium) 2,2'-dithiodibenzoate and 4-methylimidazolium 2-[(2-carboxyphenyl)disulfanyl]benzoate

L. Wei, Z. Wang and X. Meng

Abstract: Cocrystallization of imidazole or 4-methylimidazole with 2,2'-dithiodibenzoic acid from methanol solution yields the title 2:1 and 1:1 organic salts, 2C₃H₅N₂⁺·C₁₄H₁₀O₄S₂^2-, (I), and C₄H₇N₂⁺·C₁₄H₁₀O₄S₂^-, (II), respectively. Compound (I) crystallizes in the monoclinic C2/c space group with the mid-point of the S-S bond lying on a twofold axis. The component ions in (I) are linked by intermolecular N-HO hydrogen bonds to form a two-dimensional network, which is further linked by C-HO hydrogen bonds into a three-dimensional network. In contrast, by means of N-HO, N-HS and O-HO hydrogen bonds, the component ions in (II) are linked into a tape and adjacent tapes are further linked by -, C-HO and C-H interactions, resulting in a three-dimensional network.

Formula: 2C₃H₅N₂⁺·C₁₄H₈O₄S₂^2- and C₄H₇N₂⁺·C₁₄H₉O₄S₂^-

	Structure factor file (CIF format) (110.0 kbytes) [ doi:10.1107/S0108270109030686/fg3123Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (164.6 kbytes) [ doi:10.1107/S0108270109030686/fg3123IIsup3.hkl ] Contains datablock II

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