High-pressure synthesis of α-PbO2 and its crystal structure at 293, 203, and 113 K from single crystal diffraction data

2005 ◽  
Vol 7 (11) ◽  
pp. 1363-1368 ◽  
Author(s):  
Stanislav Filatov ◽  
Nikolay Bendeliani ◽  
Barbara Albert ◽  
Jürgen Kopf ◽  
Tatiana Dyuzeva ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Single Crystal ◽  
Diffraction Data ◽  
Single Crystal Diffraction ◽  
High Pressure Synthesis ◽  
Pressure Synthesis

High-Pressure Synthesis of α-PbO2 and Its Crystal Structure at 293, 203, and 113 K from Single Crystal Diffraction Data.

ChemInform ◽  
2006 ◽  
Vol 37 (6) ◽  
Author(s):  
Stanislav Filatov ◽  
Nikolay Bendeliani ◽  
Barbara Albert ◽  
Juergen Kopf ◽  
Tatiana Dyuzeva ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Single Crystal ◽  
Diffraction Data ◽  
Single Crystal Diffraction ◽  
High Pressure Synthesis ◽  
Pressure Synthesis

Notizen: Zur Kristallstruktur von SrPbO3 / The Crystal Structure of SrPbO3

1975 ◽  
Vol 30 (3-4) ◽  
pp. 277-278 ◽  
Author(s):  
Hans-L. Keller ◽  
Karl-H. Meier ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Single Crystal ◽  
Single Crystals ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Pressure Synthesis ◽  
Group D

Single crystals of SrPbO3 could be prepared by oxygen-high-pressure-synthesis (PO2 > 3500 at, t = 450°C). Single crystal X-ray diffraction data confirm the space group D2h16-Pnma. SrPbO3 belongs to the orthorhombic distorted Perowskit type with a = 5.964, b = 8.320, c = 5.860 Å. The atomic positions were refined.

Synthesis and Crystal Structure of the Iron Borate Fe2B2O5

2009 ◽  
Vol 64 (5) ◽  
pp. 491-498 ◽  
Author(s):  
Stephanie C. Neumair ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
High Temperature ◽  
Single Crystal ◽  
Diffraction Data ◽  
Iron Borate ◽  
Single Crystal Diffraction ◽  
Synthesis And Crystal Structure ◽  
Data Space ◽  
High Pressure High Temperature

Fe2B2O5, synthesized under mild high-pressure / high-temperature conditions of 3 GPa and 960 ◦C, possesses a structure isotypic to the triclinic pyroborates M2B2O5 with M = Mg, Mn, Co, and Cd. Although the parameter pressure is not essential to the synthesis of Fe2B2O5, the specific conditions enhance the crystallinity of the product. Therefore, the crystal structure of the iron pyroborate Fe2B2O5 could be determined via single crystal diffraction data [space group P1̄ (Z = 4) with the parameters a = 323.1(1), b = 615.7(2), c = 935.5(2) pm, α = 104.70(3), β = 90.82(3), γ = 91.70(3)◦, V = 0.1799(1) nm3, R1 = 0.0409, and wR2 = 0.0766 (all data)]. The structure is built up from layers of isolated pyroborate units ([B2O5]4−), which are composed of two corner-sharing BO3 triangles. These pyroborate layers serve to bridge 4×1 ribbons of edge-sharing FeO6 octahedra by both edgeand corner-sharing.

scholarly journals High-pressure synthesis and crystal structure of the mixed-cation borate Ga4In4B15O33(OH)3

2019 ◽  
Vol 74 (4) ◽  
pp. 357-363
Author(s):  
Daniela Vitzthum ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
High Temperature ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Mixed Cation ◽  
High Pressure High Temperature ◽  
Pressure Synthesis

AbstractThe mixed cation triel borate Ga4In4B15O33(OH)3 was synthesized in a Walker-type multianvil apparatus at high-pressure/high-temperature conditions of 12.5 GPa and 1300°C. Although the product could not be reproduced in further experiments, its crystal structure could be reliably determined via single-crystal X-ray diffraction data. Ga4In4B15O33(OH)3 crystallizes in the tetragonal space group I41/a (origin choice 2) with the lattice parameters a = 11.382(2), c = 15.244(2) Å, and V = 1974.9(4) Å3. The structure of the quaternary triel borate consists of a complex network of BO4 tetrahedra, edge-sharing InO6 octahedra in dinuclear units, and very dense edge-sharing GaO6 octahedra in tetranuclear units.

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