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
• ISSN: 0022-4766; 1573-8779
• DOI: 10.1134/S0022476619010219

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.