Of d-electron metals

The poisoning effect of metal ions depends on the number of d electrons. Metals with an empty d shell, such as alkali and alkaline earth metals, and those with less than three d electrons are nonpoisons, as shown in the following for the example of... 

Figure 8. The main routes of thermal decomposition of hydrates of nitrates of d-electron metals. Reproduced from reference [64] with permission from Elsevier.

The high-nuclearity metal-carbonyl clusters [M6(CO)i6] and beyond often escape the 18-electron rule to obey Wade s rules (see Chap. 2). Thus, mononuclear neutral metal carbonyls are known for the metals that have an even number of d electrons, whereas neutral dimers with a single metal-metal bond are known for metals that have an odd number of d electrons. Metal-carbonyl clusters are essentially known in... 

A bigger number of phases in this group of oxides is observed only in the case of row 6 metal oxides (Tl, Pb and Bi), and the obtained correlations are worse in comparison to other oxides. The slope for the oxides of Pb, Bi is three times bigger than that for the transition metal oxides. For comparison, the dependence of Veil on the composition for the Ce-O system oxides was marked in Fig. 1 and 4. As it can be seen, either values and slopes for the above lines for oxide phases of /electron metals significantly deviate from the relationship obtained for the oxides of d-electron metals. On the other hand, the obtained linear function parameters are close to the parameters for the main group metal oxides (Bi,Pb). 

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See also in sourсe #XX -- [ ]

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