DIMORPHISM OF HEXAAQUANICKEL(II) bis(p-NITROBENZOATE) DIHYDRATE SALT: A NEW TRICLINIC CRYSTAL FORM

被引：2

作者：

Ibragimov, A. B. ^{[1
]}

Englert, U. ^{[2
]}

Ashurov, J. M. ^{[3
]}

Wang, A. ^{[2
]}

机构：

[1] Uzbek Acad Sci, Inst Gen & Inorgan Chem, Tashkent, Uzbekistan

[2] Rhein Westfal TH Aachen, Inst Inorgan Chem, Aachen, Germany

[3] Uzbek Acad Sci, Inst Bioorgan Chem, Tashkent, Uzbekistan

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2018年 / 59卷 / 02期

关键词：

polymorphism; p-nitrobenzoic acid; Ni(II) complex; hexaaqua cation; crystal structure; X-ray crystallography; O-NITROBENZOIC ACID; COMPLEXES;

D O I：

10.1134/S0022476618020221

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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)center dot 2H(2)O. Crystal data are: a = 5.9626(8), b = 7.3552(11), c = 12.3459(17) A, alpha = 97.885(12), beta = 96.714( 11), gamma = 91.158(11)degrees, V = 532.28(13) angstrom(3), space group P (1) over bar, 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.

引用

页码：411 / 414

页数：4

共 43 条

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