Big Chemical Encyclopedia

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

Articles Figures Tables About

Molecular geometry, edge structure

The diversity of excitation channels in the NEXAFS region offers many opportunities for research. The near-edge structure, which depends upon geometry, coordination number, and bond order and ionicity, is sensitive to the local bonding environment of the atom. The molecular orbital picture... [Pg.6]

A veritable arsenal of techniques has been mobilized to provide information regarding the structure of redox molecular sieves [9-14], X-Ray powder diffraction (XRD) provides an immediate check for crystallinity and structural type. X-Ray absorption fine structure spectroscopy (EXAFS) and X-ray absorption near edge spectroscopy (XANES) give fiirther insights into coordination geometry and bond lengths. Infiared and Raman spectroscopy have been used to identify characteristic features, e.g. the 960 cm bond attributed to the Si-OTi stretching vibration in TS-1 [9]. [Pg.160]

See other pages where Molecular geometry, edge structure is mentioned: [Pg.87]    [Pg.272]    [Pg.84]    [Pg.414]    [Pg.212]    [Pg.130]    [Pg.292]    [Pg.121]    [Pg.455]    [Pg.301]    [Pg.374]    [Pg.76]    [Pg.419]    [Pg.473]    [Pg.97]    [Pg.186]    [Pg.1192]    [Pg.17]    [Pg.245]    [Pg.173]    [Pg.219]    [Pg.249]    [Pg.182]    [Pg.68]    [Pg.26]    [Pg.129]    [Pg.408]    [Pg.64]    [Pg.201]    [Pg.13]    [Pg.435]    [Pg.103]    [Pg.572]    [Pg.240]    [Pg.172]    [Pg.47]    [Pg.219]    [Pg.2769]    [Pg.69]    [Pg.208]    [Pg.238]    [Pg.764]    [Pg.188]    [Pg.159]    [Pg.8]    [Pg.411]    [Pg.228]    [Pg.225]   
See also in sourсe #XX -- [ Pg.433 ]



SEARCH



Geometry structures

Geometry, molecular

© 2024 chempedia.info