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

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 8
Packing diagram for (IV)

: Yellow polyhedra represent Cu(bpy)(H₂O)₂²⁺ cations and magenta polyhedra represent SnF₆²⁻ anions.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

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