Structures and properties of three new homobinuclear nanosized supramolecular copper coordination polymers derived from carboxylate type ligands and benzimidazole


  • Rasel Mukred Department of Biology & Chemistry, College of Education, Al-Baida University, Yemen
  • Samir Osman Mohammed Ibb University, Ibb, Yemen. Al-Janad University for Science & Technology, Taiz, Yemen



polymer, Molecular modeling MM2, spectroscopy, thermal analysis, XRD


Three new homobinuclear nanosized supramolecular copper coordination polymers are hydrothermally synthesized by self-assembly reaction of L-tyrosine (Tyr), terephthalic acid (H2bdc), pyromellitic acid (H4btec) and benzimidazole (Hbzim) with copper chloride salt to generate with formula [[Cu2(tyr)2(bzim)2(Cl)2(H2O)2]]n 1, [[Cu2(bdc)2(bzim)2(H2O)6].3H2O]n 2 and [Cu2(H2btec)(bzim)(H2O)6].2H2O]n 3, which have been investigated by elemental analysis, molar conductivity and magnetic measurements, FT-IR and UV-Vis spectroscopy, (TGA/DTA) thermal analysis and X-ray powder diffraction(XRPD) analysis as well as MM2 theoretical calculations. The magnetic moment and electronic spectra of the complexes are certainly indicating the octahedral geometries. Thermal analysis of the complexes confirms the suggested structures and thermal stability. The results of the XRPD analysis and the average nanosized values of the complexes have nanosized supramolecular polymers in the triclinic system. The MM2 theoretical calculations are supported by the proposed structures.

Author Biographies

Rasel Mukred, Department of Biology & Chemistry, College of Education, Al-Baida University, Yemen

assistance Professor of Chemistry is working as a researcher and lecturer at Al Bida'a University Yemen.

Samir Osman Mohammed, Ibb University, Ibb, Yemen. Al-Janad University for Science & Technology, Taiz, Yemen

I am an Associate Professor of Solid State Physics from the Physics department, Ibb University and I am working currently as a Quality Assurance Director at Al Janad University in Taiz.


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