The crystal structure of the title complex, [Cd(C20H25N2O2)-Cl], reveals a hydrogen-bonded dimer composed of neutral molecules. The Cd-II center is five-coordinated by two O atoms of the pendant arms, two nitrogen donors of the 1,5-diazacyclooctane ring and a chloride anion. The coordination geometry of the complex could be described as a distorted square pyramid. The 1,5-diazacyclooctane backbone adopts a boat/chair configuration and the two phenol/phenolato groups have a dihedral angle of 101.3 (2)degrees between them. The coordinated phenolate and phenolic groups of inversion-related molecules form strong intermolecular O-H ... O hydrogen bonds.
Novel nickel(II) complexes with diazamesocyclic ligands functionalized by additional phenol donor pendant(s): synthesis, characterization, crystal structures and magnetic properties
μ-phenoxo-bridged nickel(II) complexes with l,5-diazacyclooctane (DACO) ligands functionalized by additional phenoldonor pendants has been achieved and the complexes have been characterized by IR, elemental analyses, conductivity, thermal analysis, and UV-Vis techniques. Single-crystal X-ray diffraction analyses reveal that HL111 forms a phenoxo-bridged binuclear complex (in the presence of N3− anions)
The crystal structure of the title complex, [Cd(C20H25N2O2)-Cl], reveals a hydrogen-bonded dimer composed of neutral molecules. The Cd-II center is five-coordinated by two O atoms of the pendant arms, two nitrogen donors of the 1,5-diazacyclooctane ring and a chloride anion. The coordination geometry of the complex could be described as a distorted square pyramid. The 1,5-diazacyclooctane backbone adopts a boat/chair configuration and the two phenol/phenolato groups have a dihedral angle of 101.3 (2)degrees between them. The coordinated phenolate and phenolic groups of inversion-related molecules form strong intermolecular O-H ... O hydrogen bonds.
Varying Coordination Modes and Magnetic Properties of Copper(II) Complexes with Diazamesocyclic Ligands by Altering Additional Donor Pendants on 1,5-Diazacyclooctane
nature of the pendant arms is a key factor governing the structure and properties of the complexes; therefore, the coordination modes and properties of the metalcomplexes of a diazamesocycle can be controlled by altering the pendant donors on it. Magneto-structural correlation has been precisely analyzed, and the solution properties of these complexes have also been described.