Crystal structures of three copper(II)–2,2′-bipyridine (bpy) compounds, [Cu(bpy)2(H2O)][SiF6]·4H2O, [Cu(bpy)2(TaF6)2] and [Cu(bpy)3][TaF6]2 and a related coordination polymer, [Cu(bpy)(H2O)2SnF6]n

Autor: Matthew L. Nisbet, Emily Hiralal, Kenneth R. Poeppelmeier
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 2, Pp 158-164 (2021)
Druh dokumentu: article
ISSN: 2056-9890
20569890
DOI: 10.1107/S2056989021000633
Popis: We report the hydrothermal syntheses and crystal structures of aquabis(2,2′-bipyridine-κ2N,N′)copper(II) hexafluoridosilicate tetrahydrate, [Cu(bpy)2(H2O)][SiF6]·4H2O (bpy is 2,2′-bipyridine, C10H8N2), (I), bis(2,2′-bipyridine-3κ2N,N′)-di-μ-fluorido-1:3κ2F:F;2:3κ2F:F-decafluorido-1κ5F,2κ5F-ditantalum(V)copper(II), [Cu(bpy)2(TaF6)2], (II), tris(2,2′-bipyridine-κ2N,N′)copper(II) bis[hexafluoridotantalate(V)], [Cu(bpy)3][TaF6]2, (III), and catena-poly[[diaqua(2,2′-bipyridine-κ2N,N′)copper(II)]-μ-fluorido-tetrafluoridotin-μ-fluorido], [Cu(bpy)(H2O)2SnF6]n, (IV). Compounds (I), (II) and (III) contain locally chiral copper coordination complexes with C2, D2, and D3 symmetry, respectively. The extended structures of (I) and (IV) are consolidated by O—H...F and O—H...O hydrogen bonds. The structure of (III) was found to be a merohedral (racemic) twin.
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