Crystal and molecular structure of aquabis(2,2′-bipyridine)di-µ-hydroxo-sulphatodicopper(II) tetrahydrate
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 13,p. 1267-1272
- https://doi.org/10.1039/dt9750001267
Abstract
The structure of the title compound has been determined from single-crystal three-dimensional X-ray diffractometric data. The structure was solved by the heavy-atom method, and refined by least-squares techniques to R 0·078 for 1962 independent reflections. The copper atoms are bridged by two hydroxo-ligands to give a binuclear species with Cu⋯Cu 2·893(2)Å. Each copper atom has square pyramidal geometry with mean basal Cu–N 2·00 and Cu–O 1·94 Å; the apical Cu–OH2 is 2·244(5) and Cu–OSO3 2·207(5)Å. The dihedral angle between the CuO2 planes is 6·1 °, and between the basal CuN2O2 planes 7·9°. The unco-ordinated water molecules provide a network for hydrogen bonding between the binuclear complexes. The unit cell is monoclinic with Z= 4, a= 9·683 ± 0·01, b= 34·52 ± 0·03, c= 7·822 ± 0·01 Å, β= 103·50 ± 0·05°, space group P21/c.Keywords
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