26 research outputs found
(Carbonato-κ2 O,O′)bisÂ(di-2-pyridylÂamine-κ2 N,N′)cobalt(III) bromide
In the title compound, [Co(CO3)(C10H9N3)2]Br, a distorted octaÂhedral coordination of the CoIII atom is completed by four N atoms of the two chelating di-2-pyridylÂamine ligands and two O atoms of the chelating carbonate anion. The di-2-pyridylÂamine ligands are nonplanar and the dihedral angles between the 2-pyridyl groups are 29.11 (9) and 37.15 (12)°. The coordination cation, which has approximate C
2 symmetry, is connected to the bromide ion via an N—H⋯Br− hydrogen bond. The ionic pair thus formed is further assembled into a dimer via N—H⋯O interÂactions about an inversion centre. A set of weaker C—H⋯O and C—H⋯Br− interÂactions connect the dimers into a three-dimensional network
Supplementary data for article: Zianna, A.; Sumar Ristovic, M.; Psomas, G.; Hatzidimitriou, A.; Coutouli-Argyropoulou, E.; Lalia-Kantouri, M. Cadmium(II) Complexes of 5-Nitro-Salicylaldehyde and α -Diimines: Synthesis, Structure and Interaction with Calf-Thymus DNA. Journal of Coordination Chemistry 2015, 68 (24), 4444–4463. https://doi.org/10.1080/00958972.2015.1101075
Supplementary material for: [https://doi.org/10.1080/00958972.2015.1101075]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2004]Related to accepted version: [http://cherry.chem.bg.ac.rs/handle/123456789/3350
Supplementary material for the article: Ristovic, M. S.; Zianna, A.; Psomas, G.; Hatzidimitriou, A. G.; Coutouli-Argyropoulou, E.; Lalia-Kantouri, M. Interaction of Dinuclear Cadmium(II) 5-Cl-Salicylaldehyde Complexes with Calf-Thymus DNA. Materials Science and Engineering C 2016, 61, 579–590. https://doi.org/10.1016/j.msec.2015.12.054
Supplementary material: [https://doi.org/10.1016/j.msec.2015.12.054]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2052
Supplementary data for article: Zianna, A.; Sumar Ristovic, M.; Psomas, G.; Hatzidimitriou, A.; Coutouli-Argyropoulou, E.; Lalia-Kantouri, M. Cadmium(II) Complexes of 5-Nitro-Salicylaldehyde and α -Diimines: Synthesis, Structure and Interaction with Calf-Thymus DNA. Journal of Coordination Chemistry 2015, 68 (24), 4444–4463. https://doi.org/10.1080/00958972.2015.1101075
Supplementary material for: [https://doi.org/10.1080/00958972.2015.1101075]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2004]Related to accepted version: [http://cherry.chem.bg.ac.rs/handle/123456789/3350
Supplementary data for the article: Zianna, A.; Ristović, M. Š.; Psomas, G.; Hatzidimitriou, A.; Coutouli-Argyropoulou, E.; Lalia-Kantouri, M. Cadmium(II) Complexes of 5-Bromo-Salicylaldehyde and α-Diimines: Synthesis, Structure and Interaction with Calf-Thymus DNA and Albumins. Polyhedron 2016, 107, 136–147. https://doi.org/10.1016/j.poly.2016.01.020
Supplementary material for: [https://doi.org/10.1016/j.poly.2016.01.020]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/1923
Supplementary material for the article: Ristovic, M. S.; Zianna, A.; Psomas, G.; Hatzidimitriou, A. G.; Coutouli-Argyropoulou, E.; Lalia-Kantouri, M. Interaction of Dinuclear Cadmium(II) 5-Cl-Salicylaldehyde Complexes with Calf-Thymus DNA. Materials Science and Engineering C 2016, 61, 579–590. https://doi.org/10.1016/j.msec.2015.12.054
Supplementary material: [https://doi.org/10.1016/j.msec.2015.12.054]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2052
Synthesis, thermal analysis, and spectroscopic and structural characterizations of zinc(II) complexes with salicylaldehydes
In this study, three new zinc(II) complexes with 5-substituted salicylaldehyde ligands (X-saloH) (X = 5-chloro, 5-nitro and 5-methyl) with the general formula [Zn(X-salo)(2)(CH3OH)n], (n = 0 or 2) were synthesized. An octahedral geometry was found for both the complexes [Zn(5-NO2-salo)(2)(CH3OH)(2)] and [Zn(5-Cl-salo)(2)(CH3OH)(2)] by single-crystal X-ray diffraction analysis. These complexes were characterized also by spectroscopy (IR and H-1-NMR). Simultaneous TG/DTG-DTA techniques were used to analyze their thermal behavior under inert atmosphere, with particular attention to determine their thermal degradation pathways, which was found to be a multi-step decomposition accompanied by the release of the ligand molecules. Finally, the kinetic analysis of the decomposition processes was performed by applying both the isoconversional Ozawa-Flynn-Wall (OFW) and the Kissinger-Akahira-Sunose (KAS) methods
Synthesis, thermal analysis, and spectroscopic and structural characterizations of tetranuclear nickel(II) cubane-type clusters with 2-hydroxybenzaldehydes or 2-hydroxyphenones
In this study, three novel tetranuclear nickel(II) cubane-type clusters with the general formula [Ni-4(L)(4)(mu(3)-CH3O)(4)(CH3OH)(4)] [L: the anion of 5-methyl-2-hydroxybenzaldehyde (1), 2-hydroxypropiophenone (2), and 2-hydroxybenzophenone (3)] were synthesized and characterized by single-crystal X-ray diffraction analysis. The crystal structure of each compound contains a tetranuclear cubane core [Ni4O4] based on an approximately cubic array of altering nickel and oxygen atoms with intracluster metal-metal separations of 3.04-3.14 . Each Ni(II) atom is surrounded by two oxygen atoms from the ligand (L) and by the mu(3)-CH3O oxygen atom that bridges three Ni atoms of the cubane core. The coordination sphere of Ni is completed with one methanol molecule and making six-coordinate with a distorted octahedral geometry. These complexes were characterized also by spectroscopy (IR and UV-Vis). Simultaneous TG/DTG-DTA techniques were used to analyze their thermal behavior under inert atmosphere, with particular attention to determine their thermal degradation pathways, which was found to be a multi-step decomposition accompanied by the release of the ligand molecules. Finally, the kinetic analysis of the decomposition processes was performed for the first step of complex (3), since only this verifies the requirement of applying an isoconversional method like Kissinger-Akahira-Sunose (KAS). For this step, we found the average value E (a) = 107.8 +/- A 4.5 kJ mol(-1)