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Open AccessArticle

Synthesis and Crystal Chemistry of Octahedral Rhodium(III) Chloroamines

BAM Federal Institute for Materials Research and Testing, Richard-Willstätter Str. 11, D-12489 Berlin, Germany
Nikolaev Institute of Inorganic Chemistry, Lavrentiev ave. 3, 630090 Novosibirsk, Russia
Novosibirsk State University, Pirogova str. 2, 630090 Novosibirsk, Russia
Author to whom correspondence should be addressed.
Dedicated to Prof. Dr. Anatoly V. Belyaev on the Occasion of his 80th Birthday.
Academic Editor: Barbara Modec
Molecules 2020, 25(4), 768; (registering DOI)
Received: 16 January 2020 / Revised: 5 February 2020 / Accepted: 10 February 2020 / Published: 11 February 2020
(This article belongs to the Special Issue Advances in Coordination Chemistry)
Rhodium(III) octahedral complexes with amine and chloride ligands are the most common starting compounds for preparing catalytically active rhodium(I) and rhodium(III) species. Despite intensive study during the last 100 years, synthesis and crystal structures of rhodium(III) complexes were described only briefly. Some [RhClx(NH3)6-x] compounds are still unknown. In this study, available information about synthetic protocols and the crystal structures of possible [RhClx(NH3)6−x] octahedral species are summarized and critically analyzed. Unknown crystal structures of (NH4)2[Rh(NH3)Cl5], trans–[Rh(NH3)4Cl2]Cl⋅H2O, and cis–[Rh(NH3)4Cl2]Cl are reported based on high quality single crystal X-ray diffraction data. The crystal structure of [Rh(NH3)5Cl]Cl2 was redetermined. All available crystal structures with octahedral complexes [RhClx(NH3)6-x] were analyzed in terms of their packings and pseudo-translational sublattices. Pseudo-translation lattices suggest face-centered cubic and hexagonal closed-packed sub-cells, where Rh atoms occupy nearly ideal lattices. View Full-Text
Keywords: rhodium complexes; ligand substitution; crystal structure; pseudo-translational sublattices rhodium complexes; ligand substitution; crystal structure; pseudo-translational sublattices
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Yusenko, K.V.; Sukhikh, A.S.; Kraus, W.; Gromilov, S.A. Synthesis and Crystal Chemistry of Octahedral Rhodium(III) Chloroamines. Molecules 2020, 25, 768.

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