Co-proportionation

Most interesting is the co-proportionation reaction 67, which is responsible for the accumulation of Mn centers. The Mn centers react much faster with Or than the... 

The most universal and facile techniques for the preparation ofthe derivatives of all three types of complexes are reactions of co-proportionation of TiHal4 with Ti(OR)4 [1204,1199] and also of action of AcOHal on Ti(OR)4 (in 1 1, 1 2 and 1 3 ratios). In the latter case the crystallization of solvates of TiCln(OR)4 AcOR composition is observed [215]. The preparation ofalkox-ofluorides has been achieved also with the use of SbF3 instead ofAcOF [259], The vacuum distillation of alkoxide chlorides is often accompanied by their disproportionation, and the separation in the form of adducts with pipyridine C5H10NH has been therefore proposed as an alternative [1204],... 

CO Proportionality factor relating concentrations of consecutive chain lengths Sec. 13.4.2... 

The TiVOx Catalyst. Industrial waste gases frequently contain nitrous oxide emissions (N0X). This pollutant can be removed by co-proportionation with ammonia in the presence of a suitable catalyst. Vanadia (vanadium oxide) is an active material to this end and titania (titanium oxide) is often used as a support because it also has a promoting effect. To improve this catalyst, and to make it cheaper, titania and vanadia were deposited on a high-specific-surface—area silica. The most successful version was obtained by co-impregnation of the active compounds. 

The general equations were given for the connection of E with the stability constant Kcm-s with constant co-proportionation, K j according to... 

The thermodynamic stability of a new radical anion can be determined from the difference in potentials of the corresponding radical anion and dianion [131] from the equation AE = E — E] = 0.059 log K, where K is the co-proportionation constant for the equilibrium A- -A 2A . The low values obtained for log K reveal that the radical anions have a poor thermodynamic stability compared with the radical anion of... 

In preparative coordination diemistry mixed-ligand complexes are often prepared by co-proportionation of homoleptic complexes. The reaction between K2[Pt(NC>2)4] and K2[PtBr4] is representative/ Eq. 1.4 ... 

The formation of mixed-ligand complexes by co-proportionation of homoleptic complexes has been considered theoretically. The crucial issue is... 

Equation 1.8 suggests that the co-proportionation constant, calculated on a statistical basis, will always be above unity. Thus, the statistical redistribution of ligands will favor the formation of mixed-ligand complexes. 

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