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Acta Cryst. (2008). E64, m740  [ doi:10.1107/S1600536808012002 ]

(2,9-Dimethyl-1,10-phenanthroline-[kappa]2N,N')bis(2-hydroxybenzoato)-[kappa]O;[kappa]2O,O'-cobalt(II)

P.-Z. Zhao, X.-P. Xuan and Q.-H. Tang

Abstract: In the title compound, [Co(C7H5O3)2(C14H12N2)], the CoII ion is five-coordinated by two N atoms from one 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand and three O atoms from two 2-hydroxybenzoate anions in a distorted trigonal bipyramidal geometry. The carboxylate group of one of the two 2-hydroxybenzoate anions is monodentate with a normal Co-O distance [1.9804 (18) Å], while the other is bidentate with two longer Co-O bonds [2.1981 (18) and 2.1359 (19) Å]. The crystal structure is stabilized by aromatic [pi]-[pi] stacking interactions [centroid-centroid distances of 4.0380 (3) and 3.8216 (3) Å between dmphen/dmphen and benzene/dmphen rings, respectively] and C-H...[pi](benzene) interactions.


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