منابع مشابه
New cubic phase of lithium nitride to 200 GPa
We present a new cubic γ (Fm3m) Li3N phase discovered above 40(±5) GPa. Structure and spectral distribution of the cubic phase are examined to 200 GPa with synchrotron x-ray diffraction and inelastic x-ray Raman scattering in a diamond anvil cell. First principles calculations predict a factor-of-five band-gap widening at the onset of the β → γ transition, consistent with an observed color chan...
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Raman and infrared vibrational spectra of H2 have been measured to pressures in excess of 200 GPa and at liquid helium temperatures using new high sensitivity techniques. Detailed study of the pressure dependence of op conversion rate reveals an initial increase followed by a decrease above 1 GPa. The conversion rate then increases dramatically with pressure, and this continues to above 50 GPa....
متن کامل3-Fluorosalicylaldoxime at 6.5 GPa
3-Fluoro-salicylaldoxime, C(7)H(6)FNO(2), unlike many salicylaldoxime derivatives, forms a crystal structure containing hydrogen-bonded chains rather than centrosymmetric hydrogen-bonded ring motifs. Each chain inter-acts with two chains above and two chains below via π-π stacking contacts [shortest centroid-centroid distance = 3.295 (1) Å]. This structure at 6.5 GPa represents the final point ...
متن کاملLattice strains in gold and rhenium under nonhydrostatic compression to 37 GPa
Using energy-dispersive x-ray diffraction techniques together with the theory describing lattice strains under nonhydrostatic compression, the behavior of a layered sample of gold and rhenium has been studied at pressures of 14–37 GPa. For gold, the uniaxial stress component t is consistent with earlier studies and can be described by t50.0610.015P where P is the pressure in GPa. The estimated ...
متن کاملDarwin at 200.
C harles Robert Darwin was born on February 12, 1809 (the same day as President Abraham Lincoln). In 1859 Darwin published On the Origin of Species by Means of Natural Selection (1), his most important book and the one by which he has become best known to posterity. Thus, 2009 is a double anniversary: the 200th of Darwin’s birth and the sesquicentenary of Origin. Darwin is deservedly credited a...
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ژورنال
عنوان ژورنال: European Journal of Inorganic Chemistry
سال: 2020
ISSN: 1434-1948,1099-0682
DOI: 10.1002/ejic.202000252