Abstract
The crystal structures of 3-[4-(chlorophenyl)methyl]-2-(1-pyrrolidiniomethyl)-1H-benzimidazolium tetrachlorocopper(II), (C19H22ClN3)[CuCl4], and 3-[4-(chlorophenyl)methyl]-2-(1-pyrrolidiniomethyl)-1H-benzimidazolium tetrachlorocobalt(II), (C19H22ClN3)[CoCl4], show different conformations of the free radical dihydro cations of clemizole, a potent anti-allergic agent. The anions, CuCl42− and CoCl42−, exhibit flattened tetrahedral and normal tetrahedral geometries, respectively.
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Schedule a callMore From: Acta crystallographica. Section C, Crystal structure communications
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