Email this article Dimorphism of Hexaaquanickel(Ii) Bis(p-Nitrobenzoate) Dihydrate Salt: A New Triclinic Crystal Form
- Authors: Ibragimov A.B.1, Englert U.2, Ashurov J.M.3, Wang A.2
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Affiliations:
- Institute of General and Inorganic Chemistry
- Institute of Inorganic Chemistry
- Institute of Bioorganic Chemistry
- Issue: Vol 59, No 2 (2018)
- Pages: 411-414
- Section: Article
- URL: https://journals.rcsi.science/0022-4766/article/view/161887
- DOI: https://doi.org/10.1134/S0022476618020221
- ID: 161887
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Abstract
Room temperature crystallization from a water/ethanol solution of NiSO4, p-nitrobenzoic acid (HPNBA), and thiourea yields single crystals of [Ni(H2O)6](PNBA)2·2H2O. Crystal data are: a = 5.9626(8), b = 7.3552(11), c = 12.3459(17) Å, α = 97.885(12), β = 96.714(11), γ = 91.158(11)°, V = 532.28(13) Å3, space group Pī, Z = 1. An alternative monoclinic crystal form of the same compound with a slightly lower packing efficiency was previously obtained. The Ni(II) cation is located on a crystallographic inversion center and octahedrally coordinated by six water molecules. The PNBA moieties occupy an outer coordination sphere acting as counter-anions. An intricate system of H bonds between the complex cation, the PNBA anions, and the co-crystallized water molecules results in a three-dimensional network.
About the authors
A. B. Ibragimov
Institute of General and Inorganic Chemistry
Email: ullrich.englert@ac.rwth-aachen.de
Germany, Uzbekistan
U. Englert
Institute of Inorganic Chemistry
Author for correspondence.
Email: ullrich.englert@ac.rwth-aachen.de
Germany, Aachen
J. M. Ashurov
Institute of Bioorganic Chemistry
Email: ullrich.englert@ac.rwth-aachen.de
Germany, Uzbekistan
A. Wang
Institute of Inorganic Chemistry
Email: ullrich.englert@ac.rwth-aachen.de
Germany, Aachen
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