Novel cyclic tetranuclear manganese(II) complex containing two phthalato bridging ligands; X-ray crystal structure of [Mn4(µ-phth)2(bpy)8](CIO4)4·3H2O (H2phth = phthalic acid; bpy = 2,2′-bipyridyl)

1993 ◽  
pp. 745-747 ◽  
Author(s):  
Zong-Hui Jiang ◽  
Shu-Lin Ma ◽  
Dai-Zheng Liao ◽  
Shi-Ping Yan ◽  
Geng-Lin Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phthalic Acid ◽  
Bridging Ligands ◽  
X Ray

Binuclear Iron and Ruthenium Complexes with Bis(diazene) or Bis(diazenido) Bridging Ligands:  Synthesis, Characterization, X-ray Crystal Structure, and Electrochemical Studies

1996 ◽  
Vol 35 (21) ◽  
pp. 6245-6253 ◽  
Author(s):  
Gabriele Albertin ◽  
Stefano Antoniutti ◽  
Alessia Bacchi ◽  
Emilio Bordignon ◽  
Giancarlo Pelizzi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ruthenium Complexes ◽  
Electrochemical Studies ◽  
Bridging Ligands ◽  
X Ray ◽  
Binuclear Iron

Binuclear copper(I) complexes containing bis(diphenylphosphino)methane bridging ligands. X-ray crystal structure of [Cu2(dppm)2(Py)2(NO3)](NO3) · CH3OH

Polyhedron ◽  
1997 ◽  
Vol 16 (23) ◽  
pp. 4033-4038 ◽  
Author(s):  
Yang Ruina ◽  
Lin Kunhua ◽  
Hou Yimin ◽  
Wang Dongmei ◽  
Jin Douman
Keyword(s):  
Crystal Structure ◽  
Binuclear Copper ◽  
Bridging Ligands ◽  
X Ray

Crystal structure of the three-dimensional magnetic network of type Mek[Fe(CN)6]l·mH2O, where Me=Cu, Ni, Co

1995 ◽  
Vol 10 (4) ◽  
pp. 300-305 ◽  
Author(s):  
A. Ratuszna ◽  
S. Juszczyka ◽  
G. Małecki
Keyword(s):  
Crystal Structure ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Three Dimensional ◽  
Powder Diffraction Data ◽  
Bridging Ligands ◽  
X Ray ◽  
C And N ◽  
Fe Sites ◽  
Magnetic Network

The crystal structures of Mek[Fe(CN)6];l·mH2O where Me = Cu, Ni and Co, have been refined from X-ray (CuKa) powder diffraction data by means of Rietveld analyses in space group . The Fe and Me ions are octahedrally coordinated by C and N atoms respectively, forming three-dimensional bimetallic networks with the CN-groups as bridging ligands. The Me(l) sites (k = 2, l=1) and the Fe sites (k = 3, l = 2) are partially occupied. Water oxygens were placed in alternative, empty metal sites.

Synthese und Struktur einiger Methyl(dicarboxilato)stibane / Syntheses and Structure of Some Methyl(dicarboxilato)stibanes

1984 ◽  
Vol 39 (5) ◽  
pp. 600-603 ◽  
Author(s):  
Markus Wieber ◽  
Dieter Wirth ◽  
Christian Burschka
Keyword(s):  
Crystal Structure ◽  
Phthalic Acid ◽  
Room Temperature ◽  
Antimony Atom ◽  
X Ray Diffraction ◽  
Ethanolic Solution ◽  
X Ray ◽  
Correct Formula ◽  
Polymeric Compounds

Methyldiethoxistibane and maleic or phthalic acid in a ratio of 1:1 in ethanolic solution at -78 °C react to give methyl(maleato)stibane (1) and methyl(phthalato)stibane (2) respectively. At room temperature polymeric compounds of the same analytical composition are obtained (1a and 2a).The crystal structure of the solid methyl(phthalato)stibane 2 was determined by X-ray diffraction. It shows that the central antimony atom is hexacoordinated by addition of a solvate ethanol. The correct formula for the solid should be

Crystal structure of cyanometallates Me3[Co(CN)6]2 and KMe[Fe(CN)6] with Me=Mn2+, Ni2+, Cu2+

1999 ◽  
Vol 14 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Grzegorz Małecki ◽  
Alicja Ratuszna
Keyword(s):  
Crystal Structure ◽  
Rietveld Method ◽  
Three Dimensional ◽  
Lattice Parameters ◽  
Powder Diffraction Data ◽  
Bridging Ligands ◽  
Cubic Symmetry ◽  
X Ray ◽  
C And N ◽  
Starting Model

The crystal structure of four cyanometallates has been determined from X-ray powder diffraction data using the Rietveld method. The variously hydrated compounds Cu3[Co(CN)6]2, Mn3[Co(CN)6]2 and KNi[Fe(CN)6] crystallize at cubic symmetry (Fm3m) with lattice parameters 10.032(2), 10.413(3) and 10.234(5) Å, respectively. The crystal of KMn[Fe(CN)6]·2H2O shows a monoclinic structure (P21/c) with the lattice parameters a=10.108(2) Å, b=10.104(3) Å, c=10.114(3) Å, β=92°, 93°. The starting model was based on an isomorphic Mn3[Co(CN)6]2 single crystal structure, where Co and Mn ions are octahedrally coordinated by C and N atoms, respectively, forming three-dimensional bimetallic networks with the C≡N groups as bridging ligands.

scholarly journals Crystal Structures of Antiarrhythmic Drug Disopyramide and Its Salt with Phthalic Acid

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 379
Author(s):  
Majid Ismail Tamboli ◽  
Yushi Okamoto ◽  
Yohei Utsumi ◽  
Takayuki Furuishi ◽  
Siran Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Antiarrhythmic Drug ◽  
Phthalic Acid ◽  
Ambient Condition ◽  
Gravimetric Analysis ◽  
Asymmetric Unit ◽  
Space Group ◽  
X Ray ◽  
Centrosymmetric Space Group

Disopyramide (DPA) is as a class IA antiarrhythmic drug and its crystallization from cyclohexane at ambient condition yields lower melting form crystals which belong to the monoclinic centrosymmetric space group P21/n, having two molecules in an asymmetric unit. Crystal structure analysis of pure DPA revealed closely associated DPA molecules aggregates via amide–amide dimer synthon through the N–H∙∙∙O hydrogen bond whereas the second amide hydrogen N–H engaged in an intramolecular N–H∙∙∙N hydrogen bond with N-nitrogen of 2-pyridine moieties. Crystallization of DPA and phthalic acid (PA) in 1: 1 stoichiometric molar ratio from acetone at ambient condition yielded block shape crystals of 1:1 DPA_PA salt. Its X-ray single crystal structure revealed the formation of salt by transfer of acidic proton from one of the carboxylic acidic groups of PA to the tertiary amino group of chain moiety (N3-nitrogen atom) of DPA molecules. DPA_PA salt crystals belong to the monoclinic centrosymmetric space group P21/n, comprising one protonated DPA and one PA¯ anion (hydrogen phthalate counterion) in an asymmetric unit and linked by N–H∙∙∙O and C–H∙∙∙O hydrogen bonds. Pure DPA and DPA_PA salt were further characterized by differential calorimetric analysis, thermal gravimetric analysis, powder x-ray diffraction and infrared spectroscopy.

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