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Crystalline nickel(II) di-i-amyl dithiophosphate, [Ni{S2P(O-i-C5H11)2}2]: Preparation, structure, heteronuclear (13C, 31P) CP/MAS NMR spectra, and thermal behavior
Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences, Blagoveshchensk.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.
Institute of Geology and Nature Management, Far Eastern Branch of the Russian Academy of Sciences .
Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences, Blagoveshchensk.
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2017 (English)In: Russian journal of coordination chemistry, ISSN 1070-3284, E-ISSN 1608-3318, Vol. 43, no 4, 223-231 p.Article in journal (Refereed) Published
Abstract [en]

The crystalline nickel(II) di-i-amyl) dithiophosphate (Dtph), [Ni{S2P(O-i-C5H11)2}2] (I) was isolated on a preparative scale and characterized by 13C, 31P MAS NMR, and X-ray diffraction (CIF file CCDC no. 1469369). The χ2-statistic diagrams were constructed from full 31P CP/MAS NMR spectra for calculating the 31P chemical shift anisotropy: δaniso = δzz–δiso and the asymmetry parameter η = (δyy–δxx)/(δzz–δiso). The key structural unit of I is the centrosymmetric [Ni{S2P(O-i-C5H11)2}2] molecule in which the nickel atom coordinates two Dtph ligands in the isobidentate fashion. In molecule I, each carbon, oxygen, and sulfur atom is statistically disordered over two sites with equal occupancies. However, the disorder does not affect nickel and phosphorus. These results were interpreted as the presence in I of two [Ni{S2P(O-i-C5H11)2}2] molecules rotated through 21.0(1)° (the angle between the [NiS4] chromophore planes) relative to each other around the bisecting P–Ni–P axis passing through both four-membered [NiS2P] rings. The two molecules occupy crystal lattice sites with equal probabilities. The thermal behavior of I was studied by simultaneous thermal analysis under argon. The course of the thermal destruction of the complex was established, nickel pyrophosphate (Ni2P2O7) was identified as the final product of thermal transformations.

Place, publisher, year, edition, pages
2017. Vol. 43, no 4, 223-231 p.
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Physical Chemistry
Research subject
Chemistry of Interfaces
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URN: urn:nbn:se:ltu:diva-63126DOI: 10.1134/S1070328417040030ISI: 000399830100004ScopusID: 2-s2.0-85018504670OAI: oai:DiVA.org:ltu-63126DiVA: diva2:1090434
Note

Validerad; 2017; Nivå 2; 2017-04-24 (andbra)

Available from: 2017-04-24 Created: 2017-04-24 Last updated: 2017-05-18Bibliographically approved

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