23 research outputs found
Acridinium 2-hydroxybenzoate
In the title compound, C13H10N+·C7H5O3
− or (acrH)+(Hsal)−, the asymmetric unit contains one acridinium cation and one salicylate anion. The acridinium N atom is protonated and the carboxylic acid group of salicylic acid is deprotonated. Both moieties are planar, with an r.m.s. deviation of 0.0127 Å for the acr cation and 0.0235 ° for the sal anion. They are aligned with a dihedral angle of 71.68 (3)° between them. The crystal structure is stabilized by a network of intermolecular N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds. C—H⋯π interactions are also present
Bis(2,4,6-triamino-1,3,5-triazin-1-ium) pyrazine-2,3-dicarboxylate tetrahydrate: a synchrotron radiation study
The title compound, 2C3H7N6
+·C6H2N2O4
2−·4H2O or (tataH)2(pzdc)·4H2O, was synthesised by a reaction between pyrazine-2,3-dicarboxylic acid (H2pzdc) as a proton donor and 2,4,6-triamino-1,3,5-triazin (tata) as a proton acceptor. In the crystal structure, an extensive series of O—H⋯O, O—H⋯N, N—H⋯O and N—H⋯N hydrogen bonds generates a three-dimensional framework with the hydrogen bonding involving most donor and acceptor centers. π–π stacking interactions are also observed between adjacent triazine rings, with centroid–centroid distances of 3.4994 (8) and 3.5922 (7) Å
Bis(2-amino-6-methylpyridinium) trans-diaquabis(pyrazine-2,3-dicarboxylato)cuprate(II) hexahydrate
The title compound, (C6H9N2)2[Cu(C6H2N2O4)2(H2O)2]·6H2O, was obtained by the reaction of CuCl2·2H2O with pyrazine-2,3-dicarboxylic acid (pyzdcH2) and 2-amino-6-methylpyridine (2a-6mpy) in aqueous solution. The CuII atom is located on an inversion centre and has an overall octahedral coordination environment. Two N and two O atoms from (pyzdc)2− ligands define the equatorial plane and two water molecules are in axial positions, resulting in a typical tetragonally Jahn–Teller-distorted environment. Extensive classical O—H⋯O, O—H⋯N and N—H⋯O and non-classical C—H⋯O hydrogen bonds, as well as π–π stacking interactions between aromatic rings of the cations [centroid–centroid distance = 3.58 (9) Å], lead to the formation of a three-dimensional supramolecular structure
The effect of supportive group therapy on menopause mental health
Background & Objective: Menopause effect on women quality of life and mental health. This
study performed to determine the effect of supportive group therapy on menopause mental
health condition in Sharekord. Materials & Methods: This study is a quasi experimental
research. 46 menopause women who had research condition divided in case and control
group. We used GHQ28 and demographic questionnaire in 3 stages for data gathering.
group therapy session perform for case group. Data was analysed with SPSS soft ware..
An eight-coordinate zinc complex containing the highly pre-organized ligand 1,10-phenanthroline-2,9-dicarboxylic acid: solvothermal synthesis, supramolecular structure and CSD studies
A new anionic coordination complex of Zn(II) containing the highly pre-organized ligand 1,10-phenanthroline-2,9-dicarboxylate (PDA), (H3O)2[Zn(PDA)2]·2CH3NO2·2H2O·(1), has been synthesized by solvothermal methods and characterized by elemental analysis, infrared spectroscopy and single-crystal X-ray diffraction. The last of these techniques revealed a coordination sphere around Zn(II) consisting of four N atoms and four O donors from two 1,10-phenanthroline-2,9-dicarboxylate ligands which features a distorted dodecahedral geometry. The ionic coordination motifs in 1 are held together by intermolecular O―H…O, N―H…O and C―H…O hydrogen bonding, C―H... π and π−π stacking interactions, to produce an extended 2D architecture
Synthesis, X-ray crystal structure, thermal and solution studies of a centrosymmetric metal–organic polymer based on proton transfer methodology
X-ray structure of 1D-coordination polymer of copperII bearing 1,4-pyrazine-2,3-dicarboxylic acid and 2-aminopyrimidine
Developing a magnetic metal organic framework of copper bearing a mixed azido/butane-1,4-dicarboxylate bridge : magnetic and gas adsorption properties
X-ray structure of 1D-coordination polymer of copperII bearing 1,4-pyrazine-2,3-dicarboxylic acid and 2-aminopyrimidine
The new 1D-coordination polymer of CuII ion, {(2- apymH)2[Cu(pyzdc)2] .6H2O}n, (2-apym = 2-aminopyrimidine, pyzdcH2 = 1,4- pyrazine-2,3-dicarboxylic acid), was synthesized based on proton transfer mechanism and characterized by elemental analysis, infrared spectroscopy, and single crystal X-ray diffraction. The coordination polymer consists of infinite anionic chains of [Cu(pyzdc)2]2- anion bridged crossing double chain running along a-axis and discrete (2-apymH)+ fragment. The CuII ion is located on inversion centre in the basal plane of an elongated octahedron and two oxygen atoms from adjacent (pyzdc)2-ligands occupy axial position. The interaction between oxygen atoms of water molecules along with the dicarboxylic acid play an important role in the overall supramolecular assembly