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Binary compounds factors influencing structure

Related topics Element structures (D2) Binary compounds factors influencing structure (D4)... [Pg.129]

The resort to graphical representation of the empirical correlations shows the difficulties of the analytical description, due to the multiplicity of factors influencing the electronic structure of crystals. The task can be simplified, making use of the additive character of Eg. Hooge [308, 309] expressed the band gaps of binary compounds as the sums of atomic increments, the increment of each element being constant and depending only on its EN,... [Pg.93]

The constant compositions of ternary compounds and the absence of solid solutions on the basis of binary compounds are other characteristic features of scandiiun systems (with the exception of the systems Sc-M-Ga with M = rare earth or 4A element). However, in some systems solid solutions of phases with narrow homogeneity regions occur. Sometimes a substitution of Sc and M atoms occurs and sometimes the M and the X atoms are mutually substituted. There is no doubt that the atomic size factor has a dominating influence on the formation of solid solutions and their nature (solid solutions of substitution, of inclusion or of subtraction of atoms). Examples of solid solutions of substitution are presented in table 31. It is interesting to note that all ternary compounds which form such solid solutions crystallize in structures characteristic for binary compoimds. [Pg.479]

In this section we will introduce the factors that influence the stability and the structures of solid binary ionic compounds. We know that metals and nonmetals react by transferring electrons to form cations and anions that are mutually attractive. The resulting ionic solid forms because the aggregated oppositely charged ions have a lower energy than the original elements. Just how strongly the ions attract each other in the solid state is... [Pg.353]


See other pages where Binary compounds factors influencing structure is mentioned: [Pg.134]    [Pg.134]    [Pg.64]    [Pg.597]    [Pg.411]    [Pg.607]    [Pg.456]    [Pg.365]    [Pg.481]    [Pg.564]    [Pg.342]    [Pg.337]    [Pg.136]   


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