Dynamic stereochemistry of bis-salicylaldimine chelate complexes of metals of II group
作者:Antonino Recca、Francesco A. Bottino、Paolo Finocchiaro
DOI:10.1016/0022-1902(80)80072-8
日期:1980.1
Bis(salicylaldimine) complexes of Zn, Mg and Ca have been prepared and their variable-temperature 1H-NMR spectra have been investigated in order to ascertain the stereochemistry in solution of these bis-chelates. The introduction of prochiral groups in such complexes permitted measurements of the activation energy for the enantiomerization process in the Zn derivative (ΔG19≠ = 15.5 kcal/mol); for the