Crystal structure of bis-[(oxalato-κ²O¹,O²)(1,4,8,11-tetra-aza-cyclo-tetra-decane-κ⁴N)chromium(III)] dichromate octa-hydrate from synchrotron X-ray data.

ABSTRACT: The asymmetric unit of the title compound, [Cr(C₂O₄)(C₁₀H₂₄N₄)]₂[Cr₂O₇]·8H₂O (C₁₀H₂₄N₄ = 1,4,8,11-tetra-aza-cyclo-tetra-decane, cyclam; C₂O₄ = oxalate, ox) contains one [Cr(ox)(cyclam)]⁺ cation, one half of a dichromate anion that lies about an inversion centre so that the bridging O atom is equally disordered over two positions, and four water mol-ecules. The terminal O atoms of the dichromate anion are also disordered over two positions with a refined occupancy ratio 0.586 (6):0.414 (6). The Cr^III ion is coordinated by the four N atoms of the cyclam ligand and one bidentate oxalato ligand in a cis arrangemen

SUBMITTER: Moon D 

PROVIDER: S-EPMC5347064 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature