Synthesis and Structural Characterization of Two Novel Copper(II) Schiff Base Complexes and their Water-Containing Supramolecular Structures

• Published in: Journal of structural chemistry Vol. 60; no. 1; pp. 151 - 158
• Main Authors: Barut Celepci, D., Korkmaz, N., Astley, S. T., Aygün, M.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2019; Springer Nature B.V
• Subjects: Atomic; Atomic/Molecular Structure and Spectra; Chemistry; Chemistry and Materials Science; Coordination compounds; Copper; Copper compounds; Crystals; Imines; Inorganic Chemistry; Leucine; Molecular; Optical and Plasma Physics; Physical Chemistry; Single crystals; Solid State Physics; Structural analysis; Water chemistry; X-ray diffraction; copper(II) complexes; crystal structure; Schiff bases; hydrogen bonding; supramolecular structure
• DOI: 10.1134/S0022476619010219
• ISSN: 0022-4766

Two novel copper(II) complexes, Cu 2 L 2 (bipy) and Cu 2 L 2 (H 2 O) 4 ·3H 2 O of Schiff base ligands derived from the condensation of L- tert -leucine and L-isoleucine with 2,4-dihydroxybenzaldehyde, are synthesized and characterized by single crystal X-ray diffraction. Compounds crystallize in the orthorhombic crystal system. The Cu 2 L 2 (bipy) complex has a distorted square planar geometry with an N 2 O 2 coordination environment. Water is contained in supramolecular network pores. On the other hand, in the Cu 2 L 2 (H 2 O) 4 ·3H 2 O complex, both copper atoms adopt a five-coordinated distorted square-pyramidal geometry with an NO 4 coordination environment and guest water molecules form a 1D water chain. Both complexes build a 2D supramolecular network.