Acta Crystallographica Section C

Crystal Structure Communications

Volume 61, Part 4 (April 2005)

organic compounds

gd1365 scheme

Acta Cryst. (2005). C61, o227-o230 [doi:10.1107/S0108270105004506]

9-(2,6-Dichlorophenoxycarbonyl)-10-methylacridinium trifluoromethanesulfonate and its precursor 2,6-dichlorophenyl acridine-9-carboxylate

A. Sikorski, K. Krzyminski, A. Konitz and J. Blazejowski

Abstract: The title compounds, C₂₁H₁₄Cl₂NO₂⁺·CF₃O₃S^-, (I), and C₂₀H₁₁Cl₂NO₂, (II), form triclinic crystals. Adjacent cations of (I) are oriented either parallel or antiparallel; in the latter case, they are related by a centre of symmetry. Together with the CF₃SO₃^- anions, the antiparallel-oriented cations of (I) form layers in which the molecules are linked via a network of C-HO and [bold pi] - interactions (between the benzene rings). These layers, in turn, are linked via a network of multidirectional - interactions between the acridine rings, and the whole lattice is stabilized by electrostatic interactions between ions. Adjacent molecules of (II) are oriented either parallel or antiparallel; in the latter case, they are related by a centre of symmetry. Parallel-oriented molecules are arranged in chains stabilized via C-HCl interactions. These chains are oriented either parallel or antiparallel and are stabilized, in the latter case, via multidirectional [bold pi] - interactions and more generally via dispersive interactions. Acridine and independent benzene moieties lie parallel in the lattices of (I) and (II), and are mutually oriented at an angle of 33.4 (2)° in (I) and 9.3 (2)° in (II).

Formula: C₂₁H₁₄Cl₂NO₂⁺·CF₃O₃S^- and C₂₀H₁₁Cl₂NO₂


	Structure factor file (CIF format) (199.0 kbytes) Contains datablock I

	Structure factor file (CIF format) (149.1 kbytes) Contains datablock II

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