trans-Bis(2-benzoyl­benzoato-κO 1)bis­(ethanol-κO)bis­(1H-imidazole-κN 3)nickel(II)

In the title centrosymmetric mononuclear nickel(II) complex, [Ni(C14H9O3)2(C3H4N2)2(CH3CH2OH)2], the central NiII ion lies on an inversion centre and is octa­hedrally coordinated. The equatorial plane is formed by two O atoms from two symmetry-related 2-benzoyl­benzoate ligands and two N atoms from two symmetry-related imidazole ligands, whereas the axial positions are occupied by two O atoms from two ethanol ligands. Intramolecular O---H...O hydrogen bonds stabilize this arrangement. The mol­ecules are linked into chains running along the b axis by N—H⋯O hydrogen bonds

Bis­(benzimidazole-κN 3)bis(2-benzoyl­benzoato-κO)copper(II)

In the title centrosymmetric mononuclear copper(II) compound, [Cu(C14H9O3)2(C7H6N2)2], the central CuII ion is coordinated by two N atoms from two symmetry-related benzimidazole (bim) ligands and two O atoms from two symmetry-related 2-benzoyl­benzoate (2-byba) ligands in a square-planar geometry. The mol­ecules are linked into chains running along the b axis by N—H⋯O hydrogen bonds and the chains are cross-linked by C—H⋯π inter­actions

cis-Bis(butylamine-κN)bis[sulfadiazine(1−)-κ2N,N′]copper(II) pentahydrate

In the title compound {systematic name: cis-bis[4-amino-N-(pyrimidin-2-yl)benzenesulfonamidato-κ2N,N′]bis(butylamine-κN)copper(II) pentahydrate}, [Cu(C10H9N4O2S)2(C4H11N)2]·5H2O or [Cu(sdz)2(ba)2]·5H2O [ba is butylamine and sdz = sulfadiazine(1−)], the copper(II) cation is six-coordinated by four N atoms of two sulfadiazine ligands and two N atoms of butylamine ligands. The copper(II) ion and one of the water molecules lie on twofold rotation axes. One of the butyl groups is disordered over two sites, with occupancies of 0.395 (8) and 0.605 (8). The geometry around the S atom is distorted tetrahedral. The crystal structure involves intermolecular N—H...N and N—H...O hydrogen bonds. N—H...N hydrogen bonds between sdz ligands lead to a sheet structure parallel to the ab plane

Synthesis, Spectral and Thermal Studies, and Crystal Structure of cis-Bis(imidazole)bis(picolinato)copper(II) Dihydrate [Cu(pic)2(im)2]·2H2O

The mixed-ligand picolinato (pic) complex of Cu(II) with imidazole (im), [Cu(pic) 2(im)2]·2H2O, was synthesized and characterized by elemental analysis, magnetic susceptibility, spectral methods (UV/vis and FT-IR), simultaneous TG, DTA techniques, mass spectroscopy, and X-ray diffraction. The complex crystallizes in the monoclinic space group Cc with the following unit cell parameters:a=16.381(1),b=9.556(1),c=5.177(1)̊A,β=119.074(5)◦,Z=4. In the octahedral complex, the picolinato ligands are coordinated to the copper(II) ion as bidentate N,O-donors forming chelate rings. The imidazole ligands are N-coordinated at cis positions. The thermal decomposition pathway of the complex has been studied by the help of thermal analyses data (TG and DTA) and of the mass spectroscopic fragmentation pattern. The volatile products observed in the thermal decomposition process were also observed in the mass spectrometer ionisation process, except for the molecular peak, and it was concluded that the ionisation and thermal decomposition pathways of the complex resemble each other

Synthesis, Spectral and Thermal Studies, and Crystal Structure of cis-Bis(4-methylimidazole)bis(picolinato)copper(II) [Cu(pic)2(4-MeIm)2]

The mixed-ligand picolinato (pic) complex of Cu(II) with 4-methylimidazole (4-MeIm),[Cu(pic) 2 (4-MeIm) 2], was synthesized and characterized by elemental analysis, magnetic susceptibility, spectroscopic methods (UV/vis and FT-IR) and X-ray diffraction. In the slightly distorted octahedral cis-bis(4-methylimidazole)bis(picolinato)copper(II) complex, the pic ligands are coordinated to the Cu(II) ion as bidentate N,O-donors forming chelate rings. The 4-MeIm ligands are N-coordinated in cis positions. The complex crystallizes in the triclinic space group P̄1 with unit cell parameters a=9.204(5), b=9.498(5),c=13.095(5)̊A, α=90.395(5), β=101.687(5), γ=112.291(5)◦andZ=2. ydrogen bondings and C-H···πinteractions occur between picolinato and methylimidazoleligands of eighboring complex molecules. The thermal decomposition of the complex is describe