Nitrogen isoelectronic series

Comparative reactions of nitrogen compounds with the isoelectronic series, mercury(II), thal-lium(III) and lead(IV) acetates. Principles of oxidation reactions. R. N. Butler, Chem. Rev., 1984, 84, 249-276 (307). 

Figure 24 Ionization energies of an isoelectronic series of nitrogen containing heterocumu-...

We want to comment on stereochemically-based oxidation states (9) in the metal-NO systems where nitrogen is linearly ligating. These systems are, for example, the members of the isoelectronic series... 

Our group has devoted two articles for the study of systems where the chiral subunits are bonded to a boron or to a metallic atom (Scheme 3.28). In both cases, the weakness of the bonds formed can be easily broken. In the first case, a series of bisdiphenylborates and the effect of the fluoro substitution on the relative stability of the homo vs. heterochiral complexes have been studied by means of DFT calculations (B3LYP/6-31G ) [29]. In addition, the corresponding isoelectronic structures, in which the boron has been substituted by a carbon or a positively charged nitrogen, have been considered. In all the cases, the homo and heterochiral complexes present D2 and S4 symmetries, respectively. 

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