Determination of Electron Distribution and Bonding from Soft X-Ray Emission Spectroscopy

Autor:	J. E. Holliday
Rok vydání:	1965
Předmět:	010401 analytical chemistry General Medicine 010403 inorganic & nuclear chemistry 01 natural sciences 0104 chemical sciences
Zdroj:	Advances in X-ray Analysis. 9:365-375
ISSN:	2631-3626 0376-0308
DOI:	10.1154/s0376030800003682
Popis:	From measurements of the shift in wavelength with chemical combination, it appears there is very little transfer of charge between the metal and nonmetal atoms for the Group-IV transition-metal carbides and diborides. For Group-VI transition-metal carbides and beyond, there appears to be a definite transfer of charge from the carbon to the metal atom. The bonding in the Group-IV transitionmetal carbides is largely co valent, and metallic for the Group-IV transition-metal diborides. A comparison of shapes of emission bands with crystal structure indicates that, in general, NaCl-type structures have symmetrical peaks with narrow bandwidths compared to hexagonal structure, which have asymmetrical peaks, broad bandwidths, and long tails to the bottom of the bands.
Databáze:	OpenAIRE
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