Issue 12, 2008

Remarkable structural similarities between organic co-crystals and a metal–organic coordination network—insights into hydrogen bonded aliphatic ammonium chlorides

Abstract

The reaction of trans-1,4-diaminocyclohexane and piperazine with hydrochloric acid in dimethylsulfoxide or water led to new co-crystals and chloride salts, namely trans-1,4-diammoniocyclohexane dichloride dimethylsulfoxide 1, trans(ammonio-4-amino)cyclohexane monochloride 2, and piperazinium dichloride hemihydrate 3. The crystal structures show unexpected similarities to already noted organic and metal–organic derivatives. Furthermore, hot-stage microscopy, variable-temperature X-ray diffraction studies, and thermoanalytical measurements revealed decomposition reactions, solvent-free reaction pathways, and phase transition at temperatures between 160 and 210 °C.

Graphical abstract: Remarkable structural similarities between organic co-crystals and a metal–organic coordination network—insights into hydrogen bonded aliphatic ammonium chlorides

Supplementary files

Article information

Article type
Paper
Submitted
25 Jul 2008
Accepted
03 Oct 2008
First published
03 Nov 2008

CrystEngComm, 2008,10, 1939-1947

Remarkable structural similarities between organic co-crystals and a metal–organic coordination network—insights into hydrogen bonded aliphatic ammonium chlorides

U. Baisch, K. Rubini and D. Braga, CrystEngComm, 2008, 10, 1939 DOI: 10.1039/B812892H

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