Polymeric Coordination Compounds Derived from Transition Metal (II) with Bis-dentate Ligand: Synthesis, Spectroscopic, Magnetic and Thermal Studies

Abstract

Polymeric compounds have been synthesized using the ligand [(5,5′-(3,3′-((4-Hydroxyphenyl)methylene)bis(1H-indole-3,1-diyl)bis(methylene)diquinolin-8-ol)] (HMBIQ) with Mn(II), Co(II), Ni(II), Cu(II), and Zn(II). The ligand has been characterized by ¹H and ¹³C-NMR spectroscopy. The coordination polymers have been characterized by elemental analyses, magnetic measurements, thermogravimetric analyses, electronic and infrared spectra. The coordination compounds are colored and the central metal ions are octahedrally coordinated with two water molecules and the ligand. The polymers are insoluble in all common organic solvents such as acetone, methanol, ethanol, DMF, and DMSO.

Keywords:

• coordination polymers
• spectroscopic
• thermal and magnetic studies
• transition metal ions

Acknowledgments

One of the authors, D. J. Patel, is thankful to UGC (New Delhi) for awarding a meritorious scholarship.