Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1410982 | Journal of Molecular Structure | 2007 | 16 Pages |
Abstract
The crystal structures of glycine–methanesulfonic acid (1:1) and glycine–p-toluenesulfonic acid (1:1) have been investigated by X-ray diffraction at 293 K. They belong to centrosymmetric: (i) P21/n space group of monoclinic system and (ii) Pbca space group of orthorhombic system, respectively. Both crystals consist of glycinium–sulfonate dimers (methane- or p-toluenesulfonate, respectively) with medium-strong and very similar O–H⋯O hydrogen bonds. N–H⋯O bonds connect glycinium–sulfonate dimers into infinite chains. Both sulfonic acids reveal very similar acidic properties. In glycine–p-toluenesulfonic acid (1:1) crystal very weak, C–H⋯π improper hydrogen bonds are formed. Vibrational spectra of the crystals are related to their structures.
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Authors
D. Chwaleba, M.M. Ilczyszyn, M. Ilczyszyn, Z. Ciunik,