Topochemical bias in the hydrogen-bonded networks of guanidinium carboxybenzenesulfonates Electronic supplementary information (ESI) available: X-Ray powder diffraction spectra of 2 and 3 compared with those of their constituents. See http://www.rsc.org/suppdata/nj/b0/b009197i/
Videnova-Adrabińska, Veneta; Turowska-Tyrk, Ilona; Borowiak, Teresa; Dutkiewicz, Grzegorz; Videnova-AdrabiŠska Veneta; Institute of Inorganic Chemistry and Metallurgy of Rare Elements, WrocŠaw Uni.italv;ersity of Technology; Turowska-Tyrk Ilona; Institute of Physical and Theoretical Chemistry, WrocŠaw Uni.italv;ersity of Technology; Borowiak Teresa; Faculty of Chemistry, Adam Mickiewicz Uni.italv;ersity; Dutkiewicz Grzegorz; Faculty of Chemistry, Adam Mickiewicz Uni.italv;ersity
Журнал:
New Journal of Chemistry
Дата:
2001
Аннотация:
Herein we describe the changes in the packing patterns and discuss the structural modifications in guanidinium carboxybenzenesulfonates G·CBS [C(NH2)3]<sup>+</sup>[XC6H4SO3]<sup>â </sup> (where X is the carboxylic group) compared with those in guanidinium benzenesulfonate G·BS. Generally, the one-dimensional arrangements in all three crystals comprise the same ribbon formations. However, the further organization of the ribbons is significantly different in G·CBS. We analyse the donor and acceptor efficacy of the additional functional group to disrupt some of the basic hydrogen bonds between the guanidinium and the sulfonium portions in G·BS. Since the carboxylic group introduces a mismatching of the sites on the counter ions, the changes in the symmetry relations essentially depend upon the topology of the substituent X, which results in modified packing patterns. All engineering peculiarities are analysed with respect to the symmetry constraints and geometrical demands of the packing forces.
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