RESUMO
The title compound, C6H2N3O7 -·C10H13Cl2N2 +, crystallizes with one 1-(2,3-di-chloro-phen-yl)piperazine (DP) cation and one picrate (PA) anion in the asymmetric unit. In the crystal structure, the DP cation and PA anion are inter-connected via several N-Hâ¯O and C-Hâ¯O hydrogen bonds. The DP cation and PA anion are further connected through C-Clâ¯π [3.8201â (4), 3.7785â (4)â Å] and N-Oâ¯π [3.7814â (4)â Å] inter-actions. The DP cations are further inter-connected via a weak inter-molecular Clâ¯Cl [3.2613â (4)â Å] halogen-halogen inter-action. The combination of these supra-molecular inter-actions leads to a herringbone like supra-molecular architecture.
RESUMO
In the title 2:1 co-crystal, 2C4H5ClN4·C4H6O4 the complete succinic acid mol-ecule is generated by a crystallographic centre of symmetry. In the crystal, pairwise O-Hâ¯N and N-Hâ¯O hydrogen bonds link the pyrimidine and succinic acid mol-ecules, generating R 2 2(8) loops. The pyrimidine mol-ecules are linked by pairwise N-Hâ¯N hydrogen bonds, again generating R 2 2(8) loops. Collectively, the hydrogen bonds link the components into corrugated (100) sheets. The Hirshfeld surface is presented.
RESUMO
In the title compound, C(22)H(24)N(4)O(2)S(2), the two thio-urea segments of the side-arm groups are inclined at a dihedral angle of 73.09â (9)°. The central cyclo-hexane bridge adopts a chair conformation. The mol-ecule is stabilized by N-Hâ¯O intra-molecular hydrogen bonds forming S(6) rings, and N-Hâ¯O and N-Hâ¯S inter-molecular hydrogen bonds forming infinite chains developing parallel to the b axis.
RESUMO
The spectral studies and structure of a ternary complex of copper(II) with 2-hydroxyacetophenone 3-hexamethyliminylthiosemicarbazonate (L(2-)) and 1,10-phenanthroline (phen) are reported. The thiosemicarbazone binds to the metal as a dianionic ONS-donor (L(2-)) ligand, and forms a complex of the stoichiometry [CuLphen]. The copper(II) complex was characterized by IR and UV/Vis spectroscopies, as well as by solid state room-temperature magnetic susceptibility. Spin Hamiltonian and bonding parameters of the compound are calculated from the EPR spectra. Computer simulation of EPR spectrum in DMF at 77 K aided the calculation of magnetic and bonding parameters of the compound. The structure of the compound is solved by single crystal X-ray diffraction. The geometry around copper is distorted square pyramidal.