Crystal structure, Hirshfeld surface analysis and biological activities of trans-dipyridinebis (3-Acetyl-2-Oxo-2H-Chromen-4-Olato) Cobalt(II)

0519696 - FZÚ 2020 RIV SI eng J - Journal Article
Bejaoui, L. - Rohlíček, Jan - Eigner, Václav - Ismail, A. - El Bour, M. - Ben Hassen, R.
Crystal structure, Hirshfeld surface analysis and biological activities of trans-dipyridinebis (3-Acetyl-2-Oxo-2H-Chromen-4-Olato) Cobalt(II).
Acta Chimica Slovenica. Roč. 66, č. 3 (2019), s. 603-613. ISSN 1318-0207. E-ISSN 1580-3155
R&D Projects: GA MŠMT(CZ) LO1603
EU Projects: European Commission(CZ) CZ.2.16/3.1.00/24510
Institutional support: RVO:68378271
Keywords : coumarin * cobalt Complex * fluorescence quenching * hirshfeld surfaces * antimicrobial activity
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.263, year: 2019
Method of publishing: Open access

The novel cobalt(II) complex, trans-dipyridinebis(3-acetyl-2-oxo-2H-chromen-4-olato)cobalt(II), was synthesized in ethanol. The coordination sphere of the cobalt cation was elucidated using single-crystal X-ray diffraction analysis and spectroscopic techniques (FT-IR, UV-Visible and fluorescence). Hirshfeld surface analysis indicates that hydrogen bond interactions, such as C–H•••O hydrogen bonding between the oxygen of lactone group and the pyridine appear as a primary interaction between the complex’s molecules. The metal-ligand coordination strongly influences the fluorescence intensity (the fluorescence quenching) and the offset of the emission wavelength. The metal complex was monitored for antimicrobial activity using the disk diffusion method and showed significant activity compared to the coumarin ligand.
Permanent Link: http://hdl.handle.net/11104/0304688