Frequent prediction

This paper subscribes to the third viewpoint, and is based on an empirical approach that involves coordination number pattern recognition (CNPR). It is a simplistic approach, yet it apparently accommodates most if not all carborane and borane structures. For compounds that are still controversial and for compounds that have not yet been discovered or characterized, the CNPR thesis frequently predicts different structures, or at least fewer candidates, than do any of the theoretical treatments. 

The frequent predictability of transient insomnia provides opportunity for prevention. Perhaps the most straightforward example would involve transient... 

The reaction control should be emphasized amongst the conditions of reactions of competitive complex formation [19,23], It is necessary to take into account that it is possible to determine, and frequently predict, the direction of the electrophilic attack to the donor center of di- and polyfunctional donors (ligands) only in the case when the thermodynamically stable products are formed under conditions of kinetic control. Thus, the thermodynamic stability of complexes is discussed, when the bond between the metal and di- and polydentate ligands is localized in the place of primary attack on one of any of the donor centers by the electrophilic reagent, without further change of coordination mode in the reaction of complex formation. 

We have seen that the metallic character of the elements decreases from left to right across a period and increases from top to bottom within a group. On the basis of these trends and the knowledge that metals usually have low ionization energies while nonmetals usually have high electron affinities, we can frequently predict the outcome of a reaction involving some of these elements. 

Multi-step partial re-equilibration. The PR-model frequently predicts rather high... 

Point 4 The metal-ligand bonds of transition metal complexes in high oxidation states are similar to normal covalent bonds of main group elements, which are frequently predicted with accurate interatomic distances already at the HF level of theory. The bonding of low oxidation state transition metal complexes is similar to that of donor-acceptor complexes, which need correlation energy for a reliable calculation of the bond lengths, particularly when the donor-acceptor interaction is not strong. ... 

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