Synthesis, characterization and photoluminescence studies of new Cu(II) complex

• Published in: Molecular Crystals and Liquid Crystals 2017-07, Vol.652 (1), p.213-222
• Main Authors: Donmez, Adem, Coban, M. Burak, Kocak, Cagdas, Oylumluoglu, Gorkem, Baisch, Ulrich, Kara, Hulya
• Format: Article
• Language: English
• Subjects: Aliphatic compounds; Bifurcations; Chemical bonds; Coordination compounds; Copper; Copper(II) complex; Crystal structure; Emissions; Hydrogen; Hydrogen bonding; Hydrogen bonds; Ligands; Molecular structure; Nitrophenol; Photoluminescence; Ultraviolet radiation; X ray powder diffraction; X-ray diffraction
• ISSN: 1542-1406; 1563-5287; 1527-1943
• DOI: 10.1080/15421406.2017.1358013

In the current work, a new coordination complex, [Cu(HL) 2 ], 1 [H 2 L = 2-((E)-(2-hydroxypropylimino)methyl)-4-nitrophenol] was successfully synthesized and characterized by IR, UV-vis and photoluminescence spectroscopic techniques, single crystal and powder X-ray diffraction measurements. In the crystalline structure of complex 1, the aliphatic -OH group of the ligand is not coordinated and points away from the metal coordination zone, and also actively participates in intermolecular bifurcated O−H···O hydrogen bonds which link the molecules to form hydrogen-bonded linear chains. C−H···π and π···π contacts also connect the molecules in the structure which form to 3D structure. This hydrogen bonded polymeric networks lie in the bc-plane and stacks along to the a-axis. Furthermore, complex 1 and its ligand H 2 L display an intense navy-blue emission and blue emission in the solid state at room temperature, respectively, when they are excited under UV light.