نتایج جستجو برای: triclinic system
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A novel cadmium(II) based MOF, [Cd(?–ppza)]n (1) (H2ppza = 3–(pyridin–4–yl)–1H–pyrazole–5–carboxylic acid) was synthesized under solvothermal condition. The single-crystal X-ray diffraction reveals that the title MOF 1 crystallizes in triclinic system with P–1 space group, and each Cd(II) is coordinated five (Hppza)2? ions forming a distorted octahedron. carboxylic group ligand acts as bridge l...
The asymmetric unit of the second polymorph of the title compound, C(2)H(9)NO(6)P(2), contains one mol-ecule existing as a zwitterion. The N atom of the ammonio group is protonated and one of the phospho-nic acid groups is deprotonated. Bond lengths and angles are similar in both polymorphs. Besides the differences in cell parameters, the most significant structural difference between this stru...
The title mol-ecular salt, C6H8N(+)·C6H2N3O7 (-) (systematic name: 3-methyl-pyridinium 2,4,6-tri-nitro-phenolate), crystallizes in the triclinic space group P-1. The crystal structure of the monoclinic polymorph (space group P21/n) has been reported [Stilinovic & Kaitner (2011 ▸). Cryst. Growth Des. 11, 4110-4119]. In the crystal, the anion and cation are linked via bifurcated N-H⋯(O,O) hydroge...
THE ASYMMETRIC UNIT OF THE TRICLINIC POLYMORPH OF THE TITLE COMPOUND (SYSTEMATIC NAME: 4-cyano-pyridinium 2,5-dichloro-4-hy-droxy-3,6-dioxocyclo-hexa-1,4-dien-1-olate), C(6)H(5)N(2) (+)·C(6)HCl(2)O(4) (-), consists of two crystallographically independent cation-anion units, in each of which the cation and the anion are linked by an N-H⋯O hydrogen bond. In the units, the dihedral angles between ...
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(C9H7INO • C12H4N4) triclinic PT, a = 7.161(5) A, b = 8.639(5) Ä, c = 17.392(6) A, a 64.96(4)°, ß = 80.64(3)°, y = 76.99(3)°, V = 1075.6 A3, Z = 2, dc = 1.47 Mgm-3. The structure was refined to R — 0.114 for 2022 reflections. It consists of segregated diadic stacks of TCNQ and 4-oxo-iodoquinolinium ions. Interplanar distances in the TCNQ stack are 3.09( 1) A and 3.32(1) A ; 3.37(1) A and 3.55(1...
1:1 salt of Disopyramide (DPA) with Terephthalic acid (TA) was obtained by the slow solvent evaporation and slurry crystallization methods. X-ray single crystal diffraction DPA:TA confirmed formation transfer an acidic proton from one carboxylic groups TA to tertiary amino group chain moiety (N3-nitrogen atom) DPA molecules. crystals crystalize in triclinic system space P-1. The asymmetric unit...
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