A second polymorph of aqua(2,9-dimethyl-1,10-phenanthroline-κ2N,N′)bis(formato-κO)copper(II)

A second polymorph of aqua(2,9-dimethyl-1,10-phenanthroline-κ2N,N′)bis(formato-κO)copper(II)

A new monoclinic polymorphic form of the title compound, [Cu(HCO2)2(C14H12N2)(H2O)], is described. It differs from the first orthorhombic polymorph [Pan, Lin & Zheng (2005). Z. Kristallogr. New Cryst. Struct. 220, 495–496] in the deviation of the Cu atom relative to the plane of th...

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Bibliographic Details
Main Authors: Jian-Li Lin, Wei Xu, Hong-Zhen Xie
Format: Article
Language:English
Published: International Union of Crystallography 2008-08-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536808022812
Description
Summary:A new monoclinic polymorphic form of the title compound, [Cu(HCO2)2(C14H12N2)(H2O)], is described. It differs from the first orthorhombic polymorph [Pan, Lin & Zheng (2005). Z. Kristallogr. New Cryst. Struct. 220, 495–496] in the deviation of the Cu atom relative to the plane of the 2,9-dimethyl-1,10-phenanthroline (dmp) ligand. In the present structure, the Cu atom is shifted from the mean plane of the dmp ligand by only 0.005 (1) Å, compared with 0.318 (6) Å in the orthorhombic form. Hydrogen-bonding and π–π stacking interactions (mean interplanar distance of 3.59 Å in the title compound) in the two different polymorphs are both essential to the supramolecular assembly.
ISSN:1600-5368

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