ISSN:
0948-5023
Schlagwort(e):
Keywords Grignard compounds, Diethylether, Schlenk equilibrium, DFT calculation, Solvent effects
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract Density Functional calculations have been used to study the solvent effect of diethyl ether on the Schlenk equilibrium and the aggregation of Grignard reagents RMgX with R = Me, Et, Ph. Solvent stabilization of the Mg complexes of the first solvent is larger than that of the second one. The solvation energy decreases on going from the dihalides MgX2 to the monohalides RMgX to the diorganyl compounds MgR2. The calculations indicate that the energetic preference of the unsymmetrical species reduces upon solvation. The strong tendency to dimerization of the un- and partly solvated compound vanishes for the higher solvated cases.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s0089400060186