Synthesis, Crystal Structure, and Antibacterial Evaluation of a Copper(II) Compound Derived From 1,2-Diaminobenzene-N,N′-bis(3-methoxysalicylideneimine)

Abstract

A copper(II) compound, [CuL][CuL(OH₂)]·ClO₄·0.5CH₃OH, where L = 1,2-diaminobenzene-N,N′-bis(3-methoxysalicylidenei mine), has been synthesized and characterized by means of spectroscopic methods and single-crystal X-ray structure determination. The compound crystallizes in the orthorhombic space group Cmc2₁ with unit cell dimensions a = 17.981(3) Å, b = 17.776(3) Å, c = 14.047(3) Å, V = 4489.8(14) ų, Z = 4, R ₁ = 0.0511, and wR ₂ = 0.1267. The asymmetric unit of the compound contains one mononuclear [CuL] unit, in which the Cu atom adopts a square-planar geometry, one mononuclear [CuL(OH₂)] unit, in which the Cu atom adopts a square-pyramidal geometry, one perchlorate anion, and one half methanol solvate. The compound was tested for its antibacterial activities to assess its inhibiting potential.

Keywords:

• antibacterial activity
• copper compound
• crystal structure
• Schiff base
• X-ray diffraction

Acknowledgments

The author thanks Dr. Zhujun Zhou of Lanzhou University for collection of X-ray intensity data and Linyi University for supports of the work.