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

Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia
Novosibirsk State University, Novosibirsk 630090, Russia
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
Crystals 2016, 6(9), 102;
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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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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