Synthesis and structure determination of racemic (Δ/Λ)-tris-(ethyl-enedi-amine)-cobalt(III) trichloride hemi(hexa-aqua-sodium chloride)

The synthesis and crystal structure of the title racemic compound, [Co(C H N ) ]Cl .{[Na(H O) ]Cl} , are reported. The trivalent cobalt atom, which resides on a crystallographic threefold axis, is chelated by a single ethyl-ene di-amine (en) ligand and yields the tris-chelate [Co(en) ] cation with d...

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Published in:Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2021-10, Vol.77 (Pt 10), p.1010-1013
Main Authors: Conrad-Marut, Linden H, Reinheimer, Eric W, Johnson, Adam R
Format: Article
Language:English
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Research Communications
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Summary:The synthesis and crystal structure of the title racemic compound, [Co(C H N ) ]Cl .{[Na(H O) ]Cl} , are reported. The trivalent cobalt atom, which resides on a crystallographic threefold axis, is chelated by a single ethyl-ene di-amine (en) ligand and yields the tris-chelate [Co(en) ] cation with distorted octa-hedral geometry after the application of crystal symmetry. The sodium cation (site symmetry ), has a single water mol-ecule bound to it in the asymmetric unit and yields a distorted, octa-hedrally coordinated hydrated [Na(H O) ] cation after the application of symmetry. One of the chloride ions lies on a general position and the other has site symmetry. An extensive array of C-H O, N-H Cl and O-H Cl hydrogen bonds exists between the ethyl-ene di-amine ligands, the water mol-ecules of hydration, and the anions present, thereby furnishing solid-state stability.
ISSN:2056-9890
2056-9890
DOI:10.1107/S2056989021009336