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Crystals 2016, 6(9), 102; doi:10.3390/cryst6090102

The First Homoleptic Complex of Seven-Coordinated Osmium: Synthesis and Crystallographical Evidence of Pentagonal Bipyramidal Polyhedron of Heptacyanoosmate(IV)

1
Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia
2
Novosibirsk State University, Novosibirsk 630090, Russia
3
Laboratoire des Multimatériaux et Interfaces (UMR 5615), Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
*
Author to whom correspondence should be addressed.
Academic Editors: Thomas Doert and Mathias Wickleder
Received: 9 August 2016 / Revised: 17 August 2016 / Accepted: 18 August 2016 / Published: 23 August 2016
(This article belongs to the Special Issue Crystal Structure of Complex Compounds)
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Abstract

The ligand exchange in (n-Bu4N)2OsIVCl6 (n-Bu4N = tetra-n-butylammonium) leads to the formation of the osmium(IV) heptacyanide, the first fully inorganic homoleptic complex of heptacoordinated osmium. The single-crystal X-ray diffraction (SC-XRD) study reveals the pentagonal bipyramidal molecular structure of the [Os(CN)7]3− anion. The latter being a diamagnetic analogue of the highly anisotropic paramagnetic synthon, [ReIV(CN)7]3− can be used for the synthesis of the model heterometallic coordination compounds for the detailed study and simulation of the magnetic properties of the low-dimensional molecular nanomagnets involving 5d metal heptacyanides. View Full-Text
Keywords: osmium; heptacyanoosmate(IV); pentagonal bipyramid polyhedron osmium; heptacyanoosmate(IV); pentagonal bipyramid polyhedron
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Peresypkina, E.V.; Gavriluta, A.; Vostrikova, K.E. The First Homoleptic Complex of Seven-Coordinated Osmium: Synthesis and Crystallographical Evidence of Pentagonal Bipyramidal Polyhedron of Heptacyanoosmate(IV). Crystals 2016, 6, 102.

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