ChemInform Abstract: Crystal Structures and Compressibility of Novel Iron Borides Fe2B7and FexB50Synthesized at High Pressure and High Temperature.

ChemInform ◽  
2015 ◽  
Vol 46 (43) ◽  
pp. no-no
Author(s):  
E. Bykova ◽  
H. Gou ◽  
M. Bykov ◽  
M. Hanfland ◽  
L. Dubrovinsky ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Crystal Structures

High-pressure syntheses and crystal structures of orthorhombic DyGaO3 and trigonal GaBO3

2015 ◽  
Vol 70 (4) ◽  
pp. 207-214 ◽  
Author(s):  
Daniela Vitzthum ◽  
Stefanie A. Hering ◽  
Lukas Perfler ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Single Crystal ◽  
Crystal Structures ◽  
Diffraction Data ◽  
Room Temperature ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
High Pressure High Temperature

AbstractOrthorhombic dysprosium orthogallate DyGaO3 and trigonal gallium orthoborate GaBO3 were synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 8.5 GPa/1350 °C and 8 GPa/700 °C, respectively. Both crystal structures could be determined by single-crystal X-ray diffraction data collected at room temperature. The orthorhombic dysprosium orthogallate crystallizes in the space group Pnma (Z = 4) with the parameters a = 552.6(2), b = 754.5(2), c = 527.7(2) pm, V = 0.22002(8) nm3, R1 = 0.0309, and wR2 = 0.0662 (all data) and the trigonal compound GaBO3 in the space group R3̅c (Z = 6) with the parameters a = 457.10(6), c = 1419.2(3) pm, V = 0.25681(7) nm3, R1 = 0.0147, and wR2 = 0.0356 (all data).

Synthesis, crystal structures, and electronic properties of one dimensional Ba9Sn3(Te1−xSex)15 (x = 0–1)

2017 ◽  
Vol 4 (8) ◽  
pp. 1337-1343 ◽  
Author(s):  
Jun Zhang ◽  
Rui Su ◽  
Xiancheng Wang ◽  
Wenmin Li ◽  
Jianfa Zhao ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Electronic Properties ◽  
Crystal Structures ◽  
One Dimensional ◽  
Semiconducting Compounds

The new semiconducting compounds Ba9Sn3(Te1−xSex)15 synthesized under high pressure and high temperature are constructed with trimeric SnTe/Se6 octahedron chains.

scholarly journals High-Pressure Syntheses, Crystal Structures, And Thermal Behaviour Of β-Re(Bo2)3 (Re = Nd, Sm, Gd)

2007 ◽  
Vol 62 (6) ◽  
pp. 765-770 ◽  
Author(s):  
Holger Emme ◽  
Gunter Heymann ◽  
Almut Haberer ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Single Crystal ◽  
Crystal Structures ◽  
Thermal Behaviour ◽  
Diffraction Data ◽  
Ambient Pressure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Conditions

The compounds β -RE(BO2)3 [RE = Nd (neodymium meta-borate), Sm (samarium meta-borate) and Gd (gadolinium meta-borate)] were synthesized under high-pressure and high-temperature conditions in a Walker-type multianvil apparatus at 3.5 GPa (Nd), 7.5 GPa (Sm, Gd) and 1050 °C. The crystal structures were determined by single crystal X-ray diffraction data collected at r. t. (Sm, Gd) and at−73°C (Nd), respectively. The structures are isotypic with the already known ambient-pressure phases β -RE(BO2)3 (RE = (Tb, Dy) and the high-pressure phases β -RE(BO2)3 (RE = Ho-Lu)

scholarly journals Al5B12O25(OH) and Ga4InB12O25(OH) – two additional triel borates with the structure type M5B12O25(OH) (M = Ga, In)

2020 ◽  
Vol 75 (6-7) ◽  
pp. 605-613
Author(s):  
Daniela Vitzthum ◽  
Daniel S. Wimmer ◽  
Ingo Widmann ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Ir Spectroscopy ◽  
Single Crystal ◽  
Crystal Structures ◽  
Structure Type ◽  
Hydroxyl Groups ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Pressure High Temperature

AbstractThe isotypic triel borates Al5B12O25(OH) and Ga4InB12O25(OH) were synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 12.0 GPa/1400 °C and 12.3 GPa/1200 °C, respectively. The crystal structures of both compounds, determined by single-crystal X-ray diffraction, constitute new representatives of the structure type M5B12O25(OH) (M = Ga, In) crystallizing in the space group I41/acd. The presence of the hydroxyl groups was confirmed via single-crystal IR spectroscopy.

scholarly journals Phase transitions and chemical reactions of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine under high pressure and high temperature

RSC Advances ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 5825-5833 ◽  
Author(s):  
Dexiang Gao ◽  
Jin Huang ◽  
Xiaohuan Lin ◽  
Dongliang Yang ◽  
Yajie Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
High Temperature ◽  
Crystal Structures ◽  
Chemical Reactions ◽  
Extreme Conditions

Phase transitions, crystal structures and chemical reactions of β-HMX under extreme conditions were described systematically.

High-pressure Syntheses and Crystal Structures of Monoclinic B-Ho2O3 and Orthorhombic HoGaO3

2009 ◽  
Vol 64 (9) ◽  
pp. 1032-1040 ◽  
Author(s):  
Stefanie A. Hering ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Single Crystal ◽  
Crystal Structures ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
Temperature Conditions ◽  
High Pressure High Temperature

Monoclinic holmium sesquioxide B-Ho2O3 and orthorhombic holmium orthogallate HoGaO3 were synthesized in a Walker-type multianvil apparatus under high-pressure / high-temperature conditions of 11.5 GPa / 1250 °C and 7.5 GPa / 1250 °C, respectively. Both crystal structures could be determined by single-crystal X-ray diffraction data, collected at r. t. The monoclinic holmium oxide crystallizes in the space group C2/m (Z = 6) with the parameters a = 1394.7(3), b = 350.83(7), c = 865.6(2) pm, β = 100.23(3)°, R1 = 0.0517, wR2 = 0.1130 (all data), and the orthorhombic compound HoGaO3 in Pnma (Z = 4) with the parameters a = 553.0(2), b = 753.6(2), c = 525.4(2) pm, R1 = 0.0222, and wR2 = 0.0303 (all data).

Crystal structures and compressibility of novel iron borides Fe2B7 and Fe B50 synthesized at high pressure and high temperature

2015 ◽  
Vol 230 ◽  
pp. 102-109 ◽  
Author(s):  
E. Bykova ◽  
H. Gou ◽  
M. Bykov ◽  
M. Hanfland ◽  
L. Dubrovinsky ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Crystal Structures
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