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09:45
Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
Published on: April 27, 2017
Hexakis[3-(aminocarbonyl)pyridinium] decavanadate(V) dihydrate
Silvia Pacigová1, Erik Rakovský, Michal Sivák
1Department of Inorganic Chemistry, Comenius University, Faculty of Natural Sciences, Mlynská dolina, 842 15 Bratislava, Slovak Republic.
Acta Crystallographica. Section C, Crystal Structure Communications
|September 1, 2007
Summary
This study details the crystal structure of a decavanadate compound. Hydrogen bonding and pi-stacking interactions create a complex three-dimensional supramolecular network.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Decavanadate anions are complex polyoxometalates with diverse structural possibilities.
- Understanding the self-assembly of inorganic anions with organic cations is crucial for materials science.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, (C(6)H(7)N(2)O)(6)[V(10)O(28)].2H2O.
- To investigate the intermolecular interactions governing the supramolecular assembly.
Main Methods:
- Single-crystal X-ray diffraction at 120 K.
- Analysis of hydrogen bonding (N-H...O, O-H...O, C-H...O) and pi-stacking interactions.
Main Results:
- The compound crystallizes in monoclinic (C2/c) symmetry.
- A one-dimensional chain of decavanadate anions is formed via hydrogen bonding with water molecules.
- A 3D supramolecular network is established through extensive hydrogen bonding and pi-stacking interactions between pyridine rings.
Conclusions:
- The crystal structure reveals a sophisticated supramolecular architecture driven by specific intermolecular forces.
- Hydrogen bonding influences the conformation of organic cations, causing twisting of carboxamide groups relative to pyridine rings.
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