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Acta Crystallogr C. 2001 Jun;57(Pt 6):714-6. Epub 2001 Jun 12.

(2-Methylquinolin-8-olato)iron(III) and -copper(II) complexes.

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Materials Chemistry Laboratory, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China.


The crystal structures of tris(2-methylquinolin-8-olato-N,O)iron(III), [Fe(C10H8NO)3], (I), and aquabis(2-methylquinolin-8-olato-N,O)copper(II), [Cu(C10H8NO)2(H2O)], (II), have been determined. Compound (I) has a distorted octahedral configuration, in which the central Fe atom is coordinated by three N atoms and three O atoms from three 2-methylquinolin-8-olate ligands. The three Fe-O bond distances are in the range 1.934 (2)-1.947 (2) A, while the three Fe-N bond distances range from 2.204 (2) to 2.405 (2) A. In compound (II), the central Cu(II) atom and H2O group lie on the crystallographic twofold axis and the coordination geometry of the Cu(II) atom is close to trigonal bipyramidal, with the three O atoms in the basal plane and the two N atoms in apical positions. The Cu-N bond length is 2.018 (5) A. The Cu-O bond length in the basal positions is 1.991 (4) A, while the Cu-O bond length in the apical position is 2.273 (6) A. There is an intermolecular OW-H...O hydrogen bond which links the molecules into a linear chain along the b axis.


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