Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate

The title hydrated salt, C7H18N3+·OCN−.1.5H2O, was synthesized starting from N,N,N′,N′,N′′,N′′-hexamethylguanidinium chloride by a twofold anion-exchange reaction. The asymmetric unit contains two cations, two cyanate anions and three water molecules. One cation shows orientational disorder and two...

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Main Authors: Ioannis Tiritiris, Willi Kantlehner
Format: Article
Language:English
Published: International Union of Crystallography 2015-12-01
Series:Acta Crystallographica Section E: Crystallographic Communications
Subjects:
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2056989015024317
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author Ioannis Tiritiris
Willi Kantlehner
author_facet Ioannis Tiritiris
Willi Kantlehner
author_sort Ioannis Tiritiris
collection DOAJ
description The title hydrated salt, C7H18N3+·OCN−.1.5H2O, was synthesized starting from N,N,N′,N′,N′′,N′′-hexamethylguanidinium chloride by a twofold anion-exchange reaction. The asymmetric unit contains two cations, two cyanate anions and three water molecules. One cation shows orientational disorder and two sets of N-atom positions were found related by a 60° rotation, with an occupancy ratio of 0.852 (6):0.148 (6). The C—N bond lengths in both guanidinium ions range from 1.329 (2) to 1.358 (10) Å, indicating double-bond character, pointing towards charge delocalization within the NCN planes. Strong O—H...N hydrogen bonds between the crystal water molecules and the cyanate ions and strong O—H...O hydrogen bonds between the water molecules are present, resulting in a two-dimensional hydrogen bonded network running parallel to the (001) plane. The hexamethylguanidinium ions are packed in between the layers built up by water molecules and cyanate ions.
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spelling doaj.art-38112fd49dfb4d6bafd36a455d545d952022-12-21T23:50:07ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902015-12-017112o1076o107710.1107/S2056989015024317rz5180Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrateIoannis Tiritiris0Willi Kantlehner1Fakultät Chemie/Organische Chemie, Hochschule Aalen, Beethovenstrasse 1, D-73430 Aalen, GermanyFakultät Chemie/Organische Chemie, Hochschule Aalen, Beethovenstrasse 1, D-73430 Aalen, GermanyThe title hydrated salt, C7H18N3+·OCN−.1.5H2O, was synthesized starting from N,N,N′,N′,N′′,N′′-hexamethylguanidinium chloride by a twofold anion-exchange reaction. The asymmetric unit contains two cations, two cyanate anions and three water molecules. One cation shows orientational disorder and two sets of N-atom positions were found related by a 60° rotation, with an occupancy ratio of 0.852 (6):0.148 (6). The C—N bond lengths in both guanidinium ions range from 1.329 (2) to 1.358 (10) Å, indicating double-bond character, pointing towards charge delocalization within the NCN planes. Strong O—H...N hydrogen bonds between the crystal water molecules and the cyanate ions and strong O—H...O hydrogen bonds between the water molecules are present, resulting in a two-dimensional hydrogen bonded network running parallel to the (001) plane. The hexamethylguanidinium ions are packed in between the layers built up by water molecules and cyanate ions.http://scripts.iucr.org/cgi-bin/paper?S2056989015024317crystal structurecyanatehexamethylguanidiniumsaltO—H...O hydrogen bondsO—H...N hydrogen bonds
spellingShingle Ioannis Tiritiris
Willi Kantlehner
Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
Acta Crystallographica Section E: Crystallographic Communications
crystal structure
cyanate
hexamethylguanidinium
salt
O—H...O hydrogen bonds
O—H...N hydrogen bonds
title Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
title_full Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
title_fullStr Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
title_full_unstemmed Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
title_short Crystal structure of N,N,N′,N′,N′′,N′′-hexamethylguanidinium cyanate 1.5-hydrate
title_sort crystal structure of n n n n n n hexamethylguanidinium cyanate 1 5 hydrate
topic crystal structure
cyanate
hexamethylguanidinium
salt
O—H...O hydrogen bonds
O—H...N hydrogen bonds
url http://scripts.iucr.org/cgi-bin/paper?S2056989015024317
work_keys_str_mv AT ioannistiritiris crystalstructureofnnnnnnhexamethylguanidiniumcyanate15hydrate
AT willikantlehner crystalstructureofnnnnnnhexamethylguanidiniumcyanate15hydrate