Structural characterization of a mixed-ligand complex of copper(II) with 1,10-phenanthroline and the m-aminobenzoate ion

S. S. Batool, S. R. Gilani*, M. N. Tahir, W. T A Harrison

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


A new copper(II) complex of 1,10-phenanthroline (C12H8N2) and the meta-aminobenzoate ion (m-amb; C7H6NO2 ), having the formula Cu(C12H8N2)(C7H6NO2)Cl∙0.5H2O, is prepared and characterized by elemental analysis, IR spectroscopy, and single crystal X-ray diffraction. The structure is built up from monomeric units in which the coordination environment around the metal ion is a square plane arising from a bidentate 1,10-phenanthroline molecule, a monodentate m-amb anion, and a chloride ion. A very long (Cu–N = 2.856(5) Å) bond to the nitrogen atom of an adjacent m-amb ion generates [101] polymeric chains in the crystal. The crystal structure is consolidated by N–H∙∙∙O and O–H∙∙∙O hydrogen bonds and C–H∙∙∙O, C–H∙∙∙Cl, and aromatic π–π stacking interactions. Crystal data: C19H15ClCuN3O2.5, Mr = 424.33, monoclinic, P21/n (No. 14), a = 9.8200(5) Å, b = 10.9291(7) Å, c = 16.3803(9) Å, β = 105.293(3)°, V = 1695.74(17) Å3, Z = 4, R(F) = 0.043, wR(F2) = 0.122.

Original languageEnglish
Pages (from-to)991-996
Number of pages6
JournalJournal of Structural Chemistry
Issue number5
Early online date16 Dec 2016
Publication statusPublished - 16 Dec 2016

Bibliographical note

The authors thank the Higher Education Commission of Pakistan for providing research funds. The authors also acknowledge the guidance provided by Dr. Saeed Ahmad in the research work. We are also thankful to the Department of
Chemistry, University of Engineering and Technology, Lahore, Pakistan for providing research and laboratory facilities. Crystallographic data for 1 have been deposited with the Cambridge Crystallographic Data Centre (CCDC 1042555). The data can be obtained free of charge via or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, UK; e-mail:


  • 1,10-phenanthroline
  • coordination polymer
  • copper(II)
  • m-aminobenzoate ion
  • synthesis


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