Tris(2,2′-bipyridine-κ2N,N′)cobalt(III) tris(oxalato-κ2O1,O2)ferrate(III) monohydrate

Eduard N Chygorin,Volodymyr N Kokozay,Irina V Omelchenko,Svitlana R Petrusenko,Oleg V Shishkin

doi:10.1107/s1600536812003224

Eduard N Chygorin, Volodymyr N Kokozay + Show 3 more

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https://doi.org/10.1107/s1600536812003224

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Abstract

The title compound, [Co(C10H8N2)3][Fe(C2O4)3]·H2O, consists of two discrete tris(chelate) metal ions (CoIIIN6 and FeIIIO6 chromophores) and a water molecule. The structure is highly symmetrical; the CoIII and FeIII ions occupy positions with site symmetry 3.2. The coordination polyhedra of the metal atoms have a nearly octahedral geometry with noticeable trigonal distortions. The Co—N and Fe—O bond lengths are equal by symmetry, viz. 1.981 (2) and 1.998 (4) Å, respectively. The cations and anions are arranged alternately along their threefold rotation axes parallel to [001], forming chains that are packed in a hexagonal manner. The water molecules occupy voids between the chains. The crystal under investigation was an inversion twin.

Highlights

The Co—N and Fe—O bond lengths are equal by symmetry, viz. 1.981 (2) and 1.998 (4) Å, respectively
The cations and anions are arranged alternately along their threefold rotation axes parallel to [001], forming chains that are packed in a hexagonal manner
−z; (viii) −x+y+1, y, −z; (ix) −y+1, x−y, z; (x) −y+1, −x+1, −z; (xi) −y+2, −x+2, −z+1

Summary

Structure Reports

Experimental a Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrs’ka Street, Kyiv 01601, Ukraine, and bSTC ‘Institute for Single. R factor = 0.063; wR factor = 0.155; data-to-parameter ratio = 20.1. The title compound, [Co(C10H8N2)3][Fe(C2O4)3]H2O, consists of two discrete tris(chelate) metal ions The structure is highly symmetrical; the CoIII and FeIII ions occupy positions with site symmetry 3.2. The coordination polyhedra of the metal atoms have a nearly octahedral geometry with noticeable trigonal distortions. The Co—N and Fe—O bond lengths are equal by symmetry, viz. 1.981 (2) and 1.998 (4) Å, respectively. The cations and anions are arranged alternately along their threefold rotation axes parallel to [001], forming chains that are packed in a hexagonal manner. The water molecules occupy voids between the chains.

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