Ab initio study of structural, elastic and thermodynamic properties of Fe3S at high pressure: implications for planetary cores

2021 ◽  
2021 ◽  
pp. 114305
Author(s):  
A. Benamer ◽  
Y. Medkour ◽  
S.Sâad Essaoud ◽  
S. Chaddadi ◽  
A. Roumili

2001 ◽  
Vol 86 (5-6) ◽  
pp. 762-766 ◽  
Author(s):  
Wenhui Duan ◽  
Bijaya B. Karki ◽  
Renata M. Wentzcovitch ◽  
B.L. Gu

Author(s):  
Banjo Semire ◽  
Isaiah Ajibade Adejoro ◽  
Olusegun Ayobami Odunola

In this paper, we theoretically studied the geometries, stabilities, electronic and thermodynamic properties of bridged bithiophene S-oxide (BTO-X) derivates (with X = BH2, SiH2, S, S=O, and O) by using semi-empirical methods, ab-initio, and Density functional theory. The geometries and thermodynamic parameters calculated by PM3 were in good agreement with that of B3LYP/6-31G(d). The bandgap calculated by B3LYP/6-31G(d) ranged from 3.94eV (BTO-O)-3.16eV (BTO-BH2). The absorption λmax calculated suing B3LYP/6-31G(d) shifted to longer wavelength with X=BH2, SiH2, and S=O due to enhancement of π-conjugated system whereas, BTO-S and BTO-O shifted to shorter wavelengths as compared to dimmer thiophene S-oxide (2TO).


2016 ◽  
Vol 98 ◽  
pp. 198-208 ◽  
Author(s):  
O. Gomis ◽  
H.M. Ortiz ◽  
J.A. Sans ◽  
F.J. Manjón ◽  
D. Santamaría-Pérez ◽  
...  

2014 ◽  
Vol 597 ◽  
pp. 36-44 ◽  
Author(s):  
G. Murtaza ◽  
S.K. Gupta ◽  
T. Seddik ◽  
R. Khenata ◽  
Z.A. Alahmed ◽  
...  

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