
TY  - JOUR
A1  - Taylor, D 
T1  - The crystal structure of Hexakis(2-pyridone)copper(II) perchlorate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1975
VL  - 28
IS  - 12
SP  - 2615
EP  - 2622
KW  - 
UR  - https://doi.org/10.1071/CH9752615 
N2  - Crystals of hexakis(2-pyridone)copper(II) perchlorate, [Cu(C5H5NO)6] (ClO4)2, are monoclinic, a 9.453(2), b 10.492(3), c 17.794(4) &#506;, &#946; 95.57(2)°, space group P21/c with Z = 2. The structure was solved by Fourier methods using X-ray diffractometer data and refined by block-diagonal least-squares to convergence at R 0.037, Rw 0.044 for 3054 independent reflections. The octahedral coordination of the copper atom in the centrosymmetric cation is tetragonally distorted with Cu-O bond lengths of 1.922(2), 1.952(2) and 2.546(2) &#506;. The ligands are in the pyridone tautomeric form and coordinate the copper atom through the exocyclic oxygen atoms. There are N-H...O bonding interactions between the ligands in the equatorial plane and the axial ligands (N...O distances of 2.781(3) and 2.894(3) &#506;). The perchlorate ions (Cl-O, 1.412-1.436 &#506;) are hydrogen-bonded to the N-H groups of the axial ligands (N...O 2.958 &#506;. 
ER  -

