scholarly journals Redetermination of ammonium metavanadate

IUCrData ◽  
2018 ◽  
Vol 3 (8) ◽  
Author(s):  
Aarón Pérez-Benítez ◽  
Sylvain Bernès
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Solid State ◽  
Single Crystal ◽  
Structural Data ◽  
Ammonium Cation ◽  
Ammonium Metavanadate ◽  
Starting Material ◽  
X Ray ◽  
Hydrogen Bonding Interactions

The crystal structure of ammonium metavanadate, NH4VO3, a compound widely used as a starting material for the synthesis of vanadium and polyoxidovanadate compounds, had been determined twice using single-crystal X-ray data [Syneček & Hanic (1954). Czech. J. Phys. 4, 120–129 (Weissenberg data); Hawthorne & Calvo (1977). J. Solid State Chem. 22, 157–170 (four-circle diffractometer data)]. Its structure is now redetermined at higher resolution using Ag Kα radiation, and the result is compared with the former refinements. Structural data for the polymeric [VO3]∞ chain remain unchanged, while more accurate parameters are obtained for the ammonium cation, improving the description of hydrogen-bonding interactions in the crystal structure.

Study on Novel Structure of Praseodymium Complex, C5H13O11Pr

2013 ◽  
Vol 834-836 ◽  
pp. 515-518
Author(s):  
Hai Xing Liu ◽  
Qing Liu ◽  
Ting Ting Huang ◽  
Yang Xu ◽  
Lin Tong Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
Hydrothermal Reaction ◽  
Crystal Packing ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Novel Structure ◽  
Praseodymium Complex

A novel praseodymium complex C5H13O11Pr has been synthesized from hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Pr1 atom is nine coordinated by nine O atoms. The crystal packing is stabilized by O-H...O hydrogen bonding interactions.

Synthese, Struktur und thermisches Verhalten von Thiophosphorsäuretriamid SP(NH2)3 [1] / Synthesis, Structure, and Thermal Behaviour of Phosphorothionic Triamide SP(ΝΗ2)3 [1]

1989 ◽  
Vol 44 (8) ◽  
pp. 942-945 ◽  
Author(s):  
Wolfgang Schnick
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Thermal Properties ◽  
Single Crystal ◽  
Melting Temperature ◽  
Intermolecular Hydrogen Bonding ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Ray Methods ◽  
Single Bonds

Phosphorothionic triamide SP(NH2)3 is obtained by slow addition of SPCl3 dissolved in dry CH2Cl2 to a satured solution of NH3 in CH2Cl2 at —50°C. Ammonium chloride is removed from the resulting precipitate by treatment with HNEt2 followed by extraction with CH2Cl2. Coarse crystalline SP(NH2)3 is obtained after recrystallization from dry methanol. The crystal structure of SP(NH2)3 has been determined by single crystal X-ray methods (Pbca; a = 922.3(1), b = 953.8(1), c = 1058.4(2) pm, Z = 8). In the crystals the molecules show non-crystallographic point symmetry C8. The P—S bond (195.4(1) pm) is slightly longer than in SPCl3. From P—N bond lengths of about 166 pm a significant electrostatic strengthening of the P—N single bonds is assumed. Weak intermolecular hydrogen bonding interactions (N —H · · · N ≥ 329.5 pm; N — H · · · S ≥ 348.3 pm) are observed.Investigation of thermal properties shows a melting temperature of 115°C for SP(NH2)3. According to combined DTA/TG and MS investigations above this temperature the compound decomposes by evolution of H2S and NH3 to yield amorphous phosphorus(V)nitride.

Synthesis of Glycolic and Oxalic Acid Europium: [Eu (C3 H6O9)] ·2(H2O)

2012 ◽  
Vol 554-556 ◽  
pp. 792-795
Author(s):  
Hai Xing Liu ◽  
Jing Wang ◽  
Fang Fang Jian ◽  
Hui Juan Yue ◽  
Guang Zeng ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Oxalic Acid ◽  
Single Crystal ◽  
Hydrothermal Reaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
The Eu

A new Eu complex [Eu (C3O9H6)] ·2(H2O) has been synthesized from a hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Eu atom is coordinated by eight O atoms. The molecular is antisymmetric structure by the C3-C3 axis. It is striking that the structure of the complex exhibits extensive O-H…O hydrogen-bonding interactions.

Study on a Novel Structure of Yttrium Complex, C4H10O10Y

2013 ◽  
Vol 785-786 ◽  
pp. 424-427
Author(s):  
Hai Xing Liu ◽  
Qing Hua Zhang ◽  
Zhang Xue Yu ◽  
Quan Hua Fan ◽  
Ting Ting Huang ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
Hydrothermal Reaction ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Novel Structure

The Y complex C4H10O10Y has been synthesized from a hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Y atom is coordinated by nine O atoms. The molecular structure stabilized by the O-H…O hydrogen-bonding interactions.

Study on a Structure of 2,6-Pyridine Dicarboxylic Acid Gallium, (NH4)Ga(C7H3NO4)2

2013 ◽  
Vol 470 ◽  
pp. 3-6
Author(s):  
Hai Xing Liu ◽  
Qing Liu ◽  
Xiao Ri Sun ◽  
Lin Tong Wang ◽  
Yun Chen Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
Dicarboxylic Acid ◽  
Crystal Packing ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Pyridine Dicarboxylic Acid ◽  
Solution Reaction

A novel Ga complex (NH4)Ga(C7H3NO4)2 has been synthesized from a solution reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Ga atom is six-coordinated by two N atoms and four O atoms from two 2,6-pyridine dicarboxylic acid anions. The crystal packing is stabilized by O-H...N hydrogen bonding interactions.

Synthesis, crystal structure of the simultaneous binding of Ni(II) cation and chloride by the protonated 2,4,6 tris-(2-pyridyl)-1,3,5 triazine ligand: Theoretical investigations of anion···π, π···π and hydrogen bonding interactions

2021 ◽  
Author(s):  
Pampi Pal ◽  
kinsuk das ◽  
Anowar Hossain ◽  
Rosa Maria Gomila ◽  
Antonio Frontera ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Theoretical Investigations ◽  
Protonated Ligand

A new octahedral Ni(II) complex 1 of protonated ligand Htptz+ (tptz: 2,4,6-tris(2-pyridyl)-1,3,5-triazine) has been synthesized and characterized by single crystal X-ray analysis. It is worth of note that the protonated...

scholarly journals Hydrogen bonding in the crystal structure of phurcalite, Ca2[(UO2)3O2(PO4)2]·7H2O: single-crystal X-ray study and TORQUE calculations

2020 ◽  
Vol 76 (3) ◽  
pp. 502-509 ◽  
Author(s):  
Jakub Plášil ◽  
Boris Kiefer ◽  
Seyedat Ghazisaeed ◽  
Simon Philippo
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Solid State ◽  
Single Crystal ◽  
Theoretical Calculations ◽  
Structural Formula ◽  
Single Crystal Xrd ◽  
X Ray ◽  
Uranyl Phosphate ◽  
Bonding Scheme

The crystal structure of phurcalite, Ca2[(UO2)3O2(PO4)2]·7H2O, orthorhombic, a = 17.3785 (9) Å, b = 15.9864 (8) Å, c = 13.5477 (10) Å, V = 3763.8 (4) Å3, space group Pbca, Z = 8 has been refined from single-crystal XRD data to R = 0.042 for 3182 unique [I > 3σ(I)] reflections and the hydrogen-bonding scheme has been refined by theoretical calculations based on the TORQUE method. The phurcalite structure is layered, with uranyl phosphate sheets of the phosphuranylite topology which are linked by extensive hydrogen bonds across the interlayer occupied by Ca2+ cations and H2O groups. In contrast to previous studies the approach here reveals five transformer H2O groups (compared to three expected by a previous study) and two non-transformer H2O groups. One of the transformer H2O groups is, nevertheless, not linked to any metal cation, which is a less frequent type of H2O bonding in solid state compounds and minerals. The structural formula of phurcalite has been therefore redefined as {Ca2(H2 [3]O)5(H2 [4]O)2}[(UO2)3O2(PO4)2], Z = 8.

Study on a Novel Structure of Terbium Complex, C9H24O21Tb2

2013 ◽  
Vol 470 ◽  
pp. 96-99
Author(s):  
Hai Xing Liu ◽  
Qing Liu ◽  
Lin Tong Wang ◽  
Su Qing Wang ◽  
Ben Yu Huang ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
Hydrothermal Reaction ◽  
X Ray Diffraction ◽  
Terbium Complex ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Novel Structure

The Tb complex C9H24O21Tb2has been synthesized from a hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Tb atom is coordinated by nine O atoms. The molecular structure stabilized by the O-H…O hydrogen-bonding interactions.

Study on a Novel Structure of Terbium Complex, C6H14O19Tb2

2013 ◽  
Vol 470 ◽  
pp. 92-95
Author(s):  
Hai Xing Liu ◽  
Qing Liu ◽  
Xue Wei Peng ◽  
Lin Tong Wang ◽  
Li Kun Han ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Single Crystal ◽  
Hydrothermal Reaction ◽  
X Ray Diffraction ◽  
Terbium Complex ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Novel Structure

The Tb complex C6H14O19Tb2has been synthesized from a hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. The Tb atom is coordinated by nine O atoms. The molecular structure stabilized by the O-H…O hydrogen-bonding interactions.

Crystal Structure of Biammonium Hexamolybdonickelate (II) Hydrate, (NH4)2(NiMo6O24)(H3O)6

2013 ◽  
Vol 834-836 ◽  
pp. 485-489
Author(s):  
Hai Xing Liu ◽  
Qing Liu ◽  
Quan Hua Fan ◽  
Xiao Ping Zhang ◽  
Lin Tong Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Metal Complex ◽  
Title Compound ◽  
Hydrothermal Reaction ◽  
Ammonium Cation ◽  
Water Molecules ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bonding Interactions

A novel Ni metal complex H26Mo6N2NiO30has been synthesized from hydrothermal reaction and the crystal structure has been determined by means of single-crystal X-ray diffraction. H26Mo6N2NiO30, Monoclinic, P2(1)/c. a = 11.3487(14) Å, b = 11.0823(13) Å, c = 11.9350(16) Å. alpha=gamma= 90°. beta= 108.542(2)°. V= 1423.1(3) Å3. It is also striking that the structure of title compound exhibits extensive hydrogen-bonding interactions among water molecules, ammonium cation, and oxygen atoms in the heteropolyanion.

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