Issue 1, 2006

When in the presence of the strong hydrogen bonds, the weak hydrogen bonds gain an importance

Abstract

The crystal structures of brucinium hydrogen N-benzoyl-D-aspartate tetrahydrate (1), brucinium N-benzoyl-D-asparaginate trihydrate (2), brucinium N-tert-butoxycarbonyl-L-alaninate 2-propanol solvate hydrate (3) and brucinium N-tert-butoxycarbonyl-L-prolinate ethanol solvate hydrate (4) were determined. In all crystals under investigation, the brucinium cations form corrugated layers with anions and solvent molecules between them. Our investigations concerning the nature of the brucine layers show that such self-assemblies provide optimally appropriate surfaces for interactions in the hydrophilic environment from which the crystals of brucinium salts were usually grown. In an effort to obtain the most appropriate surfaces, weak hydrogen bonds gain in importance. This suggestion seems to be confirmed by the presence of the same pattern of the weak hydrogen bonds that one can observe in many crystals containing brucine (molecular/ionic).

Graphical abstract: When in the presence of the strong hydrogen bonds, the weak hydrogen bonds gain an importance

Supplementary files

Article information

Article type
Paper
Submitted
31 Oct 2005
Accepted
01 Dec 2005
First published
09 Dec 2005

CrystEngComm, 2006,8, 66-74

When in the presence of the strong hydrogen bonds, the weak hydrogen bonds gain an importance

A. Białońska and Z. Ciunik, CrystEngComm, 2006, 8, 66 DOI: 10.1039/B515365D

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