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

Ba5Al2Ge7 und Ba7Al4Ge9: Zwei neue intermetallische Phasen mit ungewöhnlichen Al-Ge-Anionen / Ba5Al2Ge7 and Ba7Al4Ge9: Two New Intermetallic Phases with Unusual Al-Ge Anions

2007 ◽  
Vol 62 (8) ◽  
pp. 1059-1070 ◽  
Author(s):  
Marco Wendorff ◽  
Caroline Röhr
Keyword(s):  
Ternary System ◽  
Single Crystal ◽  
Structure Type ◽  
Intermetallic Phases ◽  
Crystal Data ◽  
Form Complex ◽  
Space Group ◽  
X Ray ◽  
Al Content ◽  
Binary Section

In the ternary system Ba-Al-Ge new intermetallic compounds which are lying on or close to the binary section BaAl2 -BaGe2 were synthesized from the elements and characterized on the basis of X-ray single crystal data. The Al-content x in the compounds BaAlxGe2−x forming the AlB2 structure type ranges from x = 1.4 [BaAl1.4Ge0.6 space group P6/mmm, a = 443.5(1), c = 512.4(1) pm, Z = 1, R1 = 0.0222] to the stoichiometric ordered compound BaAlGe [space group P6̅m2, a = 434.9(1), c = 513.6 pm, Z = 1, R1 = 0.0252]. In the two new Ge-rich barium intermetallics Ba5Al2Ge7 [space group C2/m, a = 859.8(4), b = 1031.5(4), c = 1847.8(6) pm, β = 103.23(3)°, Z = 4, R1 = 0.0553] and Ba7Al4Ge9 [space group Fmm2, a = 1032.7(5), b = 2559(2), c = 862.1(4) pm, Z = 4, R1 = 0.1197] complex Al/Ge polyanions are present, which consist of (1) Al/Ge-ribbons of condensed planar sixmembered rings comparable to the anions in Ba3Al2Ge2, and (2) [Ge/Al]5 clusters comparable to the anions in the tetrelides Ba3M5. The building units (1) and (2) are connected via Al-Ge bonds to form complex ribbons in the case of Ba5Al2Ge7 and sheets in the case of Ba7Al4Ge9. The electron count in the two compounds supports an interpretation of the structures according to the Zintl concept and the Wades rules. The small formal electron excess, caused by the incomplete transfer of charge from Ba towards the Al/Ge polyanions, decreases with the Ge content of the compound.

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.

Über Oxocuprate, ΧΧΙII Zur Kenntnis von Ho2Cu2O5 / On Oxocuprates, XXIII About Ho2Cu2O5

1977 ◽  
Vol 32 (6) ◽  
pp. 609-611 ◽  
Author(s):  
H.-R. Freund ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Single Crystals ◽  
Oxide Mixture ◽  
Space Group ◽  
X Ray ◽  
Lattice Constants ◽  
Data Space

Single crystals of the compound Ho2Cu2O5 were obtained by melting the oxide mixture (2 CuO : 1 Ho2O3), using KF as a flux. The crystal structure was investigated by single crystal X-ray data (Space group C2v9-P 21 nb, lattice constants: a = 1247.8, b = 1081.3, c = 349.5 pm).

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.

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 analysis and extremely long-living light-induced metastable states in RbY[Fe(CN)5NO]2·10H2O and CsY[Fe(CN)5NO]2·10H2O

2002 ◽  
Vol 217 (10) ◽  
Author(s):  
Th. Woike ◽  
P. Held ◽  
M. Mühlberg ◽  
M. Imlau
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Crystal Structures ◽  
Structure Analysis ◽  
Diffraction Data ◽  
Crystal Structure Analysis ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Data Space

AbstractCrystal structures of both isostructural com-pounds were solved from single crystal X-ray diffraction data (space group

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.

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