Structure Solution of the High-Pressure Phase of CuWO4and Evolution of the Jahn–Teller Distortion

2011 ◽  
Vol 23 (18) ◽  
pp. 4220-4226 ◽  
Author(s):  
J. Ruiz-Fuertes ◽  
A. Friedrich ◽  
J. Pellicer-Porres ◽  
D. Errandonea ◽  
A. Segura ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Phase ◽  
Teller Distortion ◽  
Structure Solution ◽  
Jahn Teller ◽  
Jahn Teller Distortion ◽  
Pressure Phase

ChemInform Abstract: Structure Solution of the High-Pressure Phase of CuWO4 and Evolution of the Jahn-Teller Distortion.

ChemInform ◽  
2011 ◽  
Vol 42 (50) ◽  
pp. no-no
Author(s):  
J. Ruiz-Fuertes ◽  
A. Friedrich ◽  
J. Pellicer-Porres ◽  
D. Errandonea ◽  
A. Segura ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Phase ◽  
Teller Distortion ◽  
Structure Solution ◽  
Jahn Teller ◽  
Abstract Structure ◽  
Jahn Teller Distortion ◽  
Pressure Phase

The role of Jahn–Teller distortion in insulator to semiconductor phase transition in organic–inorganic hybrid compound (p-chloroanilinium)2CuCl4at high pressure

2015 ◽  
Vol 17 (48) ◽  
pp. 32204-32210 ◽  
Author(s):  
Pallavi Ghalsasi ◽  
Nandini Garg ◽  
M. N. Deo ◽  
Alka Garg ◽  
Hemant Mande ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Hybrid Compound ◽  
Teller Distortion ◽  
Inorganic Hybrid ◽  
Jahn Teller ◽  
Jahn Teller Distortion

The captions for pressure values are not centered below each micrograph.

scholarly journals Unexpected Spin-Crossover and a Low-Pressure Phase Change in an Iron(II)/Dipyrazolylpyridine Complex Exhibiting a High-Spin Jahn–Teller Distortion

2015 ◽  
Vol 54 (13) ◽  
pp. 6319-6330 ◽  
Author(s):  
Laurence J. Kershaw Cook ◽  
Flora L. Thorp-Greenwood ◽  
Tim P. Comyn ◽  
Oscar Cespedes ◽  
Guillaume Chastanet ◽  
...  
Keyword(s):  
Phase Change ◽  
High Spin ◽  
Spin Crossover ◽  
Low Pressure ◽  
Teller Distortion ◽  
Jahn Teller ◽  
Jahn Teller Distortion ◽  
Pressure Phase

High pressure effects on the Jahn–Teller distortion in perovskite La0.5−xBixCa0.5MnO3

2001 ◽  
Vol 321 (1) ◽  
pp. 72-75 ◽  
Author(s):  
Xin Wang ◽  
Qiliang Cui ◽  
Yuewu Pan ◽  
Wei Gao ◽  
Jian Zhang ◽  
...  
Keyword(s):  
High Pressure ◽  
Pressure Effects ◽  
Teller Distortion ◽  
Jahn Teller ◽  
Jahn Teller Distortion ◽  
High Pressure Effects

scholarly journals High-Pressure Energy Dispersive X-Ray Diffraction Investigation of Lithium-Manganese Spinel

2007 ◽  
Vol 130 ◽  
pp. 69-72 ◽  
Author(s):  
Paweł Piszora
Keyword(s):  
High Pressure ◽  
Hexagonal Boron Nitride ◽  
Axial Ratio ◽  
Cubic Phase ◽  
X Ray Diffraction ◽  
Teller Distortion ◽  
Cell Experiment ◽  
Jahn Teller ◽  
Diamond Anvil ◽  
Jahn Teller Distortion

The formation of the tetragonal high-pressure structure, attributed to the Jahn-Teller distortion, was proved. The c/a axial ratio shows an increasing trend towards a stronger tetragonal distortion at high pressure. Rietveld refinement after the pressure relaxation demonstrates the presence of tetragonal artefacts of the high-pressure structure only for the LiMn2O4 sample compressed in hexagonal boron nitride (h-BN), whereas the sample compressed in silicone reveals the pure cubic phase. Confrontation with the result of the first angle-dispersive diamond-anvil-cell experiment is presented.

scholarly journals Structural correlations in $Cs_2CuCl_4$: Pressure dependence of electronic structures

2019 ◽  
Vol 11 ◽  
pp. 110004
Author(s):  
Enrique Jara ◽  
Jose Antonio Barreda-Argüeso ◽  
Jesus Antonio González ◽  
Rafael Valiente ◽  
Fernando Rodriguez
Keyword(s):  
High Pressure ◽  
Electronic Properties ◽  
Structural Information ◽  
Charge Transfer Band ◽  
Complete Characterization ◽  
High Pressure Phase ◽  
Optical Absorption Spectroscopy ◽  
Band Shift ◽  
Jahn Teller ◽  
Pressure Phase

We have investigated the crystal structure of $Cs_2CuCl_4$ in the 0-20 GPa range as a function of pressure and how pressure affects its electronic properties by means of optical absorption spectroscopy. In particular, we focused on the electronic properties in the low-pressure Pnma phase, which are mainly related to the tetrahedral $CuCl_4^{2-}$ units distorted by the Jahn-Teller effect. This study provides a complete characterization of the electronic structure of $Cs_2CuCl_4$ in the Pmna phase as a function of the cell volume and the $Cu-Cl$ bond length, $R_{Cu-Cl}$. Interestingly, the opposite shift of the charge-transfer band-gap and the $Cu^{2+}$ d-d crystal-field band shift with pressure are responsible for the strong piezochromism of $Cs_2CuCl_4$. We have also explored the high-pressure structure of $Cs_2CuCl_4$ above 4.9 GPa yielding structural transformations that are probably associated with a change of coordination around $Cu^{2+}$. Since the high-pressure phase appears largely amorphized, any structural information from X-ray diffraction is ruled out. We use electronic probes to get structural information of the high-pressure phase. Edited by: A. Goñi, A. Cantarero, J. S. Reparaz

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