期刊
ZEITSCHRIFT FUR KRISTALLOGRAPHIE
卷 219, 期 10, 页码 614-620出版社
WALTER DE GRUYTER GMBH
DOI: 10.1524/zkri.219.10.614.50820
关键词
bond valence; oxidation state; oxygen bond; iron; vanadium; copper
Based on the latest available crystal data and the reported bond valence parameters, the linear correlation between the bond valence parameter R-0 with B = 0.37A for M-O bonds (M = V, Fe and Cu) and the metal oxidation state n is shown for the first time. For V-O bonds, a linear equation of R-0 similar to n is perfectly established as R-0 = 0.0250n + 1.674 (n = 2-5). Similarly, a linear equation for Fe-O bonds is fitted as R-0 = 0.0335n + 1.648 (n = 2-4), as well as R-0 = 0.0855n + 1.482 (n = 1-3) for Cu-O bonds fitted properly. In addition, the linear correlation between R-0 and n within certain range of B values for V-O and Fe-O bonds is also established. Consequently, the oxidation-state independent parameters (R-0, B) of (1.788, 0.32 A) for V-O bonds and (1.795, 0.30 A) for Fe-O bonds can be derived from the zero slope of the R-0 similar to n straight lines. However, a similar parameter pair for Cu-O bonds cannot be found using this unique approach.
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