Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Crystals XAFS data

The crystals of this compound are tetragonal, space group P4, Z = 2, a = 1822.7, c = 975.7 pm. Extended XAFS data show that the U(III) atoms are interacting with all the crown-ether oxygens (345). [Pg.106]

The second inaccuracy is a mix-up between cause and effect. Obviously, the two phenomena, crystal lattice distortion and low-symmetry orbital ordering, are interrelated. However, the JT distortion can take place even without any long-range orbital ordering. Above the temperature of structural (JT) phase transition, in each elementary cell, the JT effect is still active. Considered separately from one another, due to the JT effect, elementary cells can be locally distorted. These local distortions are not ordered, and respective X-ray data provide evidence of time averaged high symmetry lattice. However, above the temperature of structural phase transition, disordered JT distortions manifest themselves in XAFS [58]. [Pg.712]


See other pages where Crystals XAFS data is mentioned: [Pg.279]    [Pg.101]    [Pg.387]    [Pg.15]    [Pg.417]    [Pg.16]    [Pg.18]    [Pg.58]    [Pg.1151]    [Pg.576]    [Pg.326]    [Pg.429]    [Pg.430]    [Pg.433]    [Pg.14]    [Pg.14]    [Pg.6399]    [Pg.212]    [Pg.317]    [Pg.204]    [Pg.74]    [Pg.229]    [Pg.16]    [Pg.30]    [Pg.31]    [Pg.47]    [Pg.13]    [Pg.13]    [Pg.6398]    [Pg.202]    [Pg.24]    [Pg.172]    [Pg.93]    [Pg.128]    [Pg.276]   


SEARCH



Crystal data

XAFS

© 2024 chempedia.info