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Regiospecific Synthesis of Disubstituted Benzene Derivatives

✍ Scribed by Dr. Guy Félix; Dr. Jacques Dunoguès; Prof. Dr. Raymond Calas

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
354 KB
Volume
18
Category
Article
ISSN
0044-8249

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✦ Synopsis

A parametrization of the "electronic" and "steric" ligand influences has been described by T o l m ~n [ ~~. Using this method the first examples for the dominance of steric ligand influences could be found in calorimetric investigations on platinum(r~)[~"] and nickel(0) complexes13b1. We have now established that these ligand parameters are suitable not only for the qualitative estimation but also for the quantitative determination of the "steric" and "electronic" ligand influences. This is illustrated here for the reaction enthalpy of the association of Lewis bases to di-p-methylbis[l -methyl-1-3-q-(2-butenyl)]dinickel

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