Search

Reactions of copper(II) sulfate with 2,2′-bipyridine (bipy) and amino acids with nonpolar side chains (l-alanine (HAla), l-valine (HVal), or l-phenylalanine (HPhe)) were investigated under different solution-based and mechanochemical methods. Five new ternary coordination compounds were obtained by a solution-based synthesis and three of them additionally by the liquid-assisted mechanochemical method: {[Cu(μ-l-Ala)(H2O)(bipy)]2SO4·2H2O}n (1a·2H2O), {[Cu(μ-l-Ala)(H2O)(bipy)][Cu(l-Ala)(H2O)(bipy)]SO4·2.5H2O}n (1b·2.5H2O), {[Cu(μ-l-Val)(H2O)(bipy)][Cu(l-Val)(H2O)(bipy)]3(SO4)2·4H2O}n (2·4H2O), [Cu(l-Phe)(H2O)(bipy)][Cu(l-Phe)(SO4)(bipy)]∙8H2O (3·8H2O), and [Cu(l-Phe)(H2O)(bipy)][Cu(l-Phe)(SO4)(bipy)]∙9H2O (3·9H2O). The compounds were characterized by single-crystal and powder X-ray diffraction, infrared spectroscopy, and a thermal analysis. Structural studies revealed two structural types, monomeric in 3·8H2O and 3·9H2O, polymeric architectures in 1a·2H2O, and mixed structures (monomeric and polymeric) in 1b·2.5H2O and 2·4H2O. The copper(II) ion is either pentacoordinated or hexacoordinated, with an observed Jahn–Teller effect. The crystal structures are based on an intensive network of hydrogen bonds and π interactions. 1a·2H2O and 2·4H2O showed substantial in vitro antiproliferative activity toward human hepatocellular carcinoma (HepG2) and moderate activity toward human acute monocytic leukemia cell lines (THP-1). [ABSTRACT FROM AUTHOR]

In this work, A novel novel cadmium (II) co-crystal binary coordination compound with 3-FBINH ligand and nitrate anionic ligand were synthesized and characterized. The structure of co-crystal (3-FBINH is the abbreviation of 3-flouro benzylidene iso nicotine hydrazide) ([Cd (3-FBINH)2 (NO3)2 (H2O)] [Cd (3-FBINH)2 (NO3) (C2H6O) (H2O)].NO3 (1) was characterized by single-crystal X-ray analysis. The X-ray structure revealed that the compound has two Cd (II) metal centers with 7 and 6 coordination numbers. The adjacent frameworks connected by labile interactions like strong hydrogen -bonding interactions, CH ...π interactions CH ...CH interactions that the self-assembly occurs in the structure. Consequently, the labile interactions also allow the structure to form a 3D supramolecular coordination system. Cd O nanoparticles were obtained by thermolysis of 1 at 550 °C. The morphology and size of the prepared Cd O nanoparticles were further studied using SEM and XRD. [ABSTRACT FROM AUTHOR]