The new diclofenac-based cobalt (II) complex, namely bis {2- [2-(2,6-dichloro anilino) phenyl] acetato-κ'O, O'} (2-methyl-1H-imidazole-κN3cobalt has been synthesized and characterized by FT–IR, UV spectroscopies single crystal X-ray diffraction techniques. title complex crystallizes in the monoclinic space group I2/a with a = 19.0546(8) Å, b 13.7167(8) c 14.7165(7) 90˚, Å g 90˚ Z=4. According t...

The title complex, [Co(C(8)H(12)N(2)O(3))(2)(C(3)H(4)N(2))(2)], whose structure was first determined by Wang & Craven [(1971). J. Chem. Soc. D, pp. 290-291], has been redetermined with improved precision. A crystallographic twofold rotation axis passes through the Co atom, which is tetrahedrally coordinated by two N atoms from two barbital ligands and two N atoms from two imidazole ligands. The...

The structural data for metal saccharinates and metal complexes including saccharin and various coordinated mono(imidazole, pyridine) or polycyclic N-donor ligands (2,2'-bipyridine, 1,10-phenantroline) were retrieved from the Cambridge Structural Database and analyzed. The influence of the nature of the metal ion and of the type of the metal-to-ligand bonding on the saccharinato geometry was ex...

In the title compound, [Cd(C(8)H(4)O(4))(C(3)H(4)N(2))(H(2)O)](n), the Cd(II) ion is seven-coordinated by five O atoms from three crystallographically independent benzene-1,3-carboxylate ligands, one N atom from the imidazole ligand and one coordinated water mol-ecule. Neighboring Cd(II) ions are bridged by the benzene-1,3-dicarboxyl-ate ligands, forming a zigzag polymeric chain structure. Thes...

In the title complex, [Zn(C(10)H(8)N(5))Cl](n), the Zn(II) ion is four-coordinated by one Cl atom and three N atoms from two in situ-generated deprotonated 5-(1-methyl-1H-benzimidazol-2-yl-κN(3))-1,2,3-triazol-1-ide ligands in a slightly distorted tetra-hedral geometry. The Zn(II) ions are bridged by the ligands, forming a helical chain along [001]. C-H⋯N and C-H⋯Cl hydrogen bonds and π-π inter...

In the title compound, [Co(C(12)H(9)O(2))(2)(C(4)H(6)N(2))(2)(H(2)O)(2)], the Co(II) ion is located on an inversion centre and displays a distorted octa-hedral coordination geometry. Two O atoms from two water mol-ecules and two carboxyl-ate O atoms from two 2-(naphthalen-1-yl)acetate ligands are in the equatorial plane and two N atoms from two 1-methyl-1H-imidazole ligands are in the axial pos...

In the title coordinaltion polymer, [Cd(C(8)H(4)O(4))(C(8)H(7)N(3))(2)](n), the Cd(II) atom, lying on a twofold rotation axis, is six-coordinated by two carboxyl-ate O atoms from two benzene-1,3-dicarboxyl-ate (m-BDC) ligands and four N atoms from two chelating 2-(2-pyrid-yl)imidazole mol-ecules, forming a slightly distorted octa-hedral geometry. The m-BDC ligand is located over a twofold rotat...

The title complex, [Mg(C7H7N4O2)2(H2O)4], lies across an inversion centre and the Mg(II) atom is coordinated in a slightly distorted octa-hedral environment by four aqua ligands in the equatorial sites and two 1,3-dimethyl-2,6-dioxo-3,7-di-hydro-1H-purin-9-ide ligands, through imidazole ring N atoms, in the axial sites. An intra-molecular O-H⋯O hydrogen bond forms an S(7) graph-set motif. In th...

We determined the crystal structures of three nucleosome core particles in complex with site-specific DNA-binding ligands, the pyrrole-imidazole polyamides. While the structure of the histone octamer and its interaction with the DNA remain unaffected by ligand binding, nucleosomal DNA undergoes significant structural changes at the ligand-binding sites and in adjacent regions to accommodate the...

A red block-shaped crystal of the title compound, [Co(HCOO)2(C12H10N4)2] n , was obtained by the reaction of cobalt(II) nitrate hexa-hydrate, formic acid and 1,1'-(1,4-phenyl-ene)bis-(1H-imidazole) (bib) mol-ecules. The asymmetric unit consists of one Co(II) cation, one formate ligand and two halves of a bib ligand. The central Co(II) cation, located on an inversion centre, is coordinated by tw...