Synthesis, characterization, structure and antibacterial activity of di-nuclearalkoxobridged CuII complex with di-anionic tri-dentate ligand

Main Authors: Bikramaditya Mandala, Angsumali Mondal, Trilochan Rakshita, Mithun Chandra Majeec, Subrata Raha, Manoranjan Paramanik, Partha Mitra, Debdas Mandal
Format: Article Journal
Bahasa: eng
Terbitan: , 2018
Subjects:
Online Access: https://zenodo.org/record/5644600
Daftar Isi:
  • Department of Chemistry, Department of Botany, Sidho-Kanho-Birsha University, Purulia-723 104, West Bengal, India E-mail: deb_mandal@yahoo.co.in Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata-700 032, India Manuscript received 16 July 2018, accepted 20 August 2018 The tri-dentate ONO-donor Schiff base ligand H2L was produced from the condensation of benzoylacetone and 3- aminopropanol. This tri-dentate alcohol based ligand was treated with Cu(ClO4)2.6H2O to generate two doubly alkoxo bridged di-nuclear copper(II) complex [Cu2L2] 1. Characterization of this compound was carried out by various spectroscopic tools. Compound 1 crystallizes in orthorhombic space group P2(1)/n with a = 7.322 Å, b = 9.938 Å, c = 16.137 Å. Single crystal X-ray diffraction study reveals that in di-nuclear copper compound [Cu2L2] 1, both the metal centers adopt a square planar en­vironment and two CuII centers are bridged by two alkoxo groups. The electronic spectrum of the copper complex shows bands at 422 nm and 550 nm which can be assigned to 2B1g—>2A1g and 2B1g—>2E1g transitions. The compound shows antibacterial activity. Antibacterial activity of complex 1 was performed by well plate technique. In the above experiment, V. hydrophila, S. aureus and B. cereuscoli were found sensitive to di-nuclear copper(II) complex [Cu2L2] 1.