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Updated: Jul 9, 2026

Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
Diaquabis(quinoxaline-2-carboxylato-kappa2N1,O)copper(II)
Yue Feng1, Gang Liu, Xiu-Mei Tian
1School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, People's Republic of China.
Abstract:
In the title compound, [Cu(C9H5N2O2)2(H2O)2], the Cu(II) ion lies on an inversion centre and has an elongated centrosymmetric octahedral environment, equatorially trans-coordinated by two N,O-bidentate quinoxaline-2-carboxylate ligands and axially coordinated by two water O atoms. Symmetry-related molecules are linked by strong O-H...O hydrogen bonds, involving the uncoordinated carboxyl O atom of the carboxylate group and the coordinated water molecules, to form a two-dimensional network. Weak intermolecular C-H...N interactions also stabilize the crystal structure.
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