Synthesis and Structure of Sodium Tetraoxo Nitrido Molybdate, Na5MoO4N

2004 ◽  
Vol 59 (3) ◽  
pp. 274-276 ◽  
Author(s):  
Nachiappan Arumugam ◽  
Eva M. Peters ◽  
Martin Jansen
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Crystal Data ◽  
Space Group

The new oxynitride of molybdenum, Na5MoO4N was prepared from stoichiometric mixtures of the starting materials MoO2, Na2O2 and NaN3 which were heated in a special regime up to 500°C, and cooled down slowly. Its crystal structure was solved and refined from single crystal data (orthorhombic, Cmcm, a = 991.1(2), b = 574.3(1), c = 1067.7(2) pm, R1 = 0.0153, wR2 = 0.0427). The structure consists of isolated [MoO4N]5− rectangular pyramids which are separated by Na+ cations. This compound is structurally related to Na5WO4N which crystallizes in space group Cmc21

The crystal structure of caratiite

1984 ◽  
Vol 48 (349) ◽  
pp. 541-546 ◽  
Author(s):  
Herta Effenberger ◽  
Josef Zemann
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Crystal Data ◽  
Space Group ◽  
Atomic Arrangement ◽  
Cl Atoms

AbstractThe crystal structure of caratiite, K4Cu4O2 (SO4)4MeCl (a 13.60(2), c 4.98(1) Å, Z = 2) was solved in space group I4 from single crystal data, and refined to R = 0.035 for 654Fo > 6σ(Fo). The atomic arrangement is characterized by Cu2O(SO4)2 chains parallel to [001], with Cu in (4 + 1) co-ordination and O surrounded tetrahedrally by four Cu atoms. These chains are interconnected by K atoms to a framework, the channels of which house the Me and Cl atoms. The nature of the Me atoms is not completely clear; most probably the position is half occupied by Cu, fully occupied by Na, or occupied by a mixture of the two.

scholarly journals Darstellung und Kristallstruktur der Verbindungen MnCuX (X = P, As, PxAs1-x) / Preparation and Crystal Structure of Compounds MnCuX (X = P, As, PxAs1-x)

1992 ◽  
Vol 47 (7) ◽  
pp. 925-928 ◽  
Author(s):  
Joachim Mündelein ◽  
Hans-Uwe Schuster
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Magnetic Measurements ◽  
Crystal Data ◽  
Melting Points ◽  
Space Group ◽  
X Ray ◽  
Ternary Compounds ◽  
Antiferromagnetic Ordering

Three new ternary compounds MnCuP, MnCuP0.5As0.5 and MnCuAs have been prepared and characterized by X-Ray, DTA and magnetic measurements. They crystallize orthorhombically in the space group P nma (No. 62). The structures were calculated from single crystal data. The melting points were determined by DTA measurements (MnCuP: 1090°C; MnCuP0.5As0.5: 1000 °C; MnCuAs: 950 °C). MnCuAs appears to show an antiferromagnetic ordering up to 295 K.

Crystal data for Cu2Th4(MoO4)9 and isostructural compounds

1998 ◽  
Vol 13 (2) ◽  
pp. 107-112 ◽  
Author(s):  
S. Launay ◽  
M. Quarton
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Chemical Study ◽  
Crystal Data ◽  
Space Group ◽  
X Ray

Cu2Th4(MoO4)9 is cubic: a=14.4856(1) Å, space group I4¯3d, Z=4. Its crystal structure was recently determined using a single crystal. The results of chemical study allow one to reject the existence of Li4Th7(MO4)16 and La(MO4)(ReO4) compounds with M=Mo, W, reported as isostructural with Cu2Th4(MoO4)9. Precise X-ray powder patterns are established for Cu2Th4(MoO4)9 and isotypic compounds Li2Th4(MoO4)9, Li2Th4(WO4)9, and La4(MoO4)3(ReO4)6.

Schwermetall-π-Komplexe II [1] Arenkomplexe des Quecksilbers(I)

1987 ◽  
Vol 42 (7) ◽  
pp. 828-834 ◽  
Author(s):  
W. Frank ◽  
B. Dincher
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Diffraction Data ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Aluminium Trichloride

Abstract The crystalline compounds [(CH3C6H5)2Hg,][AlCl4]2 (1), [(1,2-(CH3)2C6H4)2Hg2][AlCl4]2(2), [(1,3,5-(CH3)3C6H3)2Hg2][AlCl4]2 (3), [1,2,4,5-(CH3)4C6H2Hg2][AlCl4]2 (4) and [((CH3)6C6)2Hg2][AlCl4]2-CH3C6H5 (5) have been prepared from mercury(I)chloride, aluminium trichloride and the corresponding arenes and characterized by elem ental analysis. The crystal structure of 5 has been determ ined from single crystal X-ray diffraction data and refined to R - 0.093 for 3269 unique reflections. Crystal data: monoclinic, space group P21/c, a = 2116(1), b = 1095.1(7), c = 1880(1) pm, β - 104,9(1)°, Z = 4. Each atom of a central Hg2 unit (Hg -Hg distance 251.5 pm) is asymmetrically complexed by hexamethylbenzene, the Hg - Carene distances being in the range from 241 to 340 pm. Two distorted AlCl4 tetrahedra complete a “molecular” [arene2Hg2][AlCl4]2 unit. The shortest Hg-Cl distances are 310 and 312 pm, respectively.

Zur Darstellung und Kristallstruktur von AgCrO2 / Synthesis and Crystal Structure of AgCrO2

1975 ◽  
Vol 30 (9-10) ◽  
pp. 659-661 ◽  
Author(s):  
Egbert Gehle ◽  
Horst Sabrowsky
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Lattice Parameters ◽  
Crystal Data ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
Point Position ◽  
Elemental Silver ◽  
Thallium Oxide

A novel preparation is reported for AgCrO2 from elemental silver and Cr2O3 in the presence of thallium oxide. A refinement of the structure was undertaken by the use of diffractometric single-crystal data. The newly determined lattice parameters of the compounds (Delafossite-type), which crystallizes in the space group R 3 m, are : α = 2.985 Å, c = 18.51 Å; c/a = 6.20; number of formula units Z = 3 (dexp = 6.63; drö = 6.69 gcm-3). For the oxygen particles in the point position 6c z (O) = 0.1119.

Crystal structure of Sc3Co1.64In4 and Sc10Co9In20 from single-crystal data

2019 ◽  
Vol 74 (3) ◽  
pp. 289-295 ◽  
Author(s):  
Nataliya Gulay ◽  
Yuriy Tyvanchuk ◽  
Marek Daszkiewicz ◽  
Bohdan Stel’makhovych ◽  
Yaroslav Kalychak
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Crystal Structures ◽  
Diffraction Data ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Arc Melting ◽  
Pure Metals

AbstractTwo compounds in the Sc-Co-In system were obtained by arc-melting of the pure metals and their crystal structures have been determined using single crystal X-ray diffraction data. The structure of Sc3Co1.64In4 (space group P6̅, а=7.6702(5), c=3.3595(2) Å, Z=1, R1=0.0160, wR2=0.0301) belongs to the Lu3Co2−xIn4 type structure, which is closely related to the ZrNiAl and Lu3CoGa5 types. The structure of Sc10Co9In20 (space group P4/nmm, а=12.8331(1), c=9.0226(1) Å, Z=2, R1=0.0203, wR2=0.0465) belongs to the Ho10Ni9In20 type, which is closely related to HfNiGa2.

The crystal structure of kukisvumite, Na6ZnTi4(Si2O6)4O4 · 4H2O

2000 ◽  
Vol 215 (6) ◽  
Author(s):  
M. Pasero ◽  
St. Merlino ◽  
O. Ferro
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Kola Peninsula ◽  
Crystal Data ◽  
Space Group ◽  
X Ray

The crystal structure of kukisvumite, a rare mineral from Kola peninsula, Russia, has been refined in the Pccn space group with X-ray single-crystal data to R = 0.055. Kukisvumite, ideally Na

Crystal Structure of the New Ternary Antimonide Ho5GaSb3

2009 ◽  
Vol 64 (8) ◽  
pp. 909-914 ◽  
Author(s):  
Iryna Antonyshyn ◽  
Olga Zhak ◽  
Stepan Oryshchyn ◽  
Volodymyr Babizhetskyy ◽  
Constantin Hoch ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Type ◽  
Crystal Data ◽  
Space Group ◽  
X Ray ◽  
Partially Ordered ◽  
Data Space ◽  
Ternary Derivative

The crystal structure of the new ternary antimonide Ho5GaSb3 has been determined from X-ray single-crystal data: space group Pnma, a = 7.9667(8), b = 15.128(2), c = 7.9616(8) Å , V = 959.5(3) Å3, Z = 4, RF = 0.059, Rw = 0.066 for 9020 reflections. The crystal structure of Ho5GaSb3 is a ternary derivative of the Sm5Ge4 structure type with partially ordered distribution of gallium and antimony atoms

Evidence of a centre of symmetry: redetermination of Ni2.60Te2 from single-crystal data

2007 ◽  
Vol 63 (11) ◽  
pp. i188-i188 ◽  
Author(s):  
L. D. Gulay ◽  
M. Daszkiewicz ◽  
A. Pietraszko
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Title Compound ◽  
Previous Investigation ◽  
Crystal Data ◽  
Interatomic Distances ◽  
Space Group ◽  
X Ray ◽  
The Subject ◽  
Atomic Coordinates

The crystal structure of the title compound, nickel telluride, with composition Ni2.60Te2, has been the subject of a previous investigation based on X-ray powder data, when a slightly different composition of Ni2.58Te2 was determined [Gulay & Olekseyuk (2004). J. Alloys Compd, 376, 131–138]. In contrast to the previous refinement in the space group Pmc21, the redetermination from single-crystal data reveals a centre of symmetry and the structure was refined in the space group Pnma with improved precision for the atomic coordinates and interatomic distances. The structure can be described as a c × a × (3a)1/2 distorted orthorhombic variant of the hexagonal Ni1.10Se0.16Te0.74 structure. All atoms are situated on mirror planes.

scholarly journals Preparation, characterization and crystal structure of the complex formed between N,N,N',N'-tetrabutylmalonamide and lanthanum(III)nitrate

2006 ◽  
Vol 71 (5) ◽  
pp. 513-519 ◽  
Author(s):  
Y.U. Cui ◽  
Guo-Xin Sun ◽  
Zhen-Wei Zhang ◽  
Si-Xiu Sun
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Extraction Method ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Nitrate Ions ◽  
Triclinic System ◽  
Oxygen Atoms

The complex [La(NO 3)3(TBMA)2] (TBMA = N,N,N?,N?-tetrabutylmalonamide) was prepared by the extraction method and characterized by single-crystal X-ray diffraction. The complex consists of two bidentate TBMA extractant and three bidentate nitrate ions coordinated to a La3+ ion. The lanthanum(III) is 10-coordinate, being bonded to four oxygen atoms of the malonamides and six oxygen atoms of the three nitrates. The crystal data are as follows C38H76N7O13La, Mr = 977.97, triclinic system, space group P 1, a = 1.3025(12), b = 1.4353(14), c = 0.4871(13) nm, ? = 70.025(17), ? = 71.411(19), ? = 84.017(18)?, V = 2.476(4) nm3, Z = 2, F(000) = 1028, D = 1.312 g.cm-3, R 1 = 0.0833, wR 2 = 0.1471.

Sign in / Sign up

Export Citation Format

Share Document