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Crystal structures of three copper(II)-2,2'-bi-pyridine (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.

ABSTRACT: We report the hydro-thermal syntheses and crystal structures of aqua-bis-(2,2'-bi-pyridine-?2 N,N')copper(II) hexa-fluorido-silicate tetra-hydrate, [Cu(bpy)2(H2O)][SiF6]·4H2O (bpy is 2,2'-bi-pyridine, C10H8N2), (I), bis-(2,2'-bi-pyridine-3?2 N,N')-di-?-fluorido-1:3?2 F:F;2:3?2 F:F-deca-fluorido-1?5 F,2?5 F-ditantalum(V)copper(II), [Cu(bpy)2(TaF6)2], (II), tris-(2,2'-bi-pyridine-?2 N,N')copper(II) bis[hexa-fluorido-tantalate(V)], [Cu(bpy)3][TaF6]2, (III), and catena-poly[[di-aqua-(2,2'-bi-pyridine-?2 N,N')copper(II)]-?-fluorido-tetra-fluorido-tin-?-fluorido], [Cu(bpy)(H2O)2SnF6] n , (IV). Compounds (I), (II) and (III) contain locally chiral copper coordination complexes with C 2, D 2, and D 3 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.

SUBMITTER: Nisbet ML 

PROVIDER: S-EPMC7869541 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Crystal structures of three copper(II)-2,2'-bi-pyridine (bpy) compounds, [Cu(bpy)<sub>2</sub>(H<sub>2</sub>O)][SiF<sub>6</sub>]·4H<sub>2</sub>O, [Cu(bpy)<sub>2</sub>(TaF<sub>6</sub>)<sub>2</sub>] and [Cu(bpy)<sub>3</sub>][TaF<sub>6</sub>]<sub>2</sub> and a related coordination polymer, [Cu(bpy)(H<sub>2</sub>O)<sub>2</sub>SnF<sub>6</sub>] <sub><i>n</i></sub>.

Nisbet Matthew L ML   Hiralal Emily E   Poeppelmeier Kenneth R KR  

Acta crystallographica. Section E, Crystallographic communications 20210126 Pt 2

We report the hydro-thermal syntheses and crystal structures of aqua-bis-(2,2'-bi-pyridine-κ<sup>2</sup> <i>N</i>,<i>N</i>')copper(II) hexa-fluorido-silicate tetra-hydrate, [Cu(bpy)<sub>2</sub>(H<sub>2</sub>O)][SiF<sub>6</sub>]·4H<sub>2</sub>O (bpy is 2,2'-bi-pyridine, C<sub>10</sub>H<sub>8</sub>N<sub>2</sub>), (I), bis-(2,2'-bi-pyridine-3κ<sup>2</sup> <i>N</i>,<i>N</i>')-di-μ-fluorido-1:3κ<sup>2</sup> <i>F</i>:<i>F</i>;2:3κ<sup>2</sup> <i>F</i>:<i>F</i>-deca-fluorido-1κ<sup>5</sup> <i>F</i>,2κ<  ...[more]

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