Reactions of allylpalladium chloride dimer with neutral ligands (L = RN:CHNHR, R = PhCH2, p-MeC6H4, p-ClC6H4; L = RN:NHR, R = p-MeC6H4, p-ClC6H4) afford bridge splitting products PdClL(1,3--C3H5). Variable temp. 1H and 13C NMR spectra show 2 dynamic processes in soln. The first one, operating at room temp., involves the dissocn. of the neutral ligand L; the second one, which has a lower activation energy, is concn. dependent and involves chloride-L exchange, probably via a pentacoordinated chloro bridge species. The influence of the basicity of the ligands on the activation energies of the processes is discussed.

Fluxional behavior of allylpalladium(II) derivatives of N,N'-diarylformamidines and 1,3-diaryltriazenes

TONIOLO, Luigi;
1979-01-01

Abstract

Reactions of allylpalladium chloride dimer with neutral ligands (L = RN:CHNHR, R = PhCH2, p-MeC6H4, p-ClC6H4; L = RN:NHR, R = p-MeC6H4, p-ClC6H4) afford bridge splitting products PdClL(1,3--C3H5). Variable temp. 1H and 13C NMR spectra show 2 dynamic processes in soln. The first one, operating at room temp., involves the dissocn. of the neutral ligand L; the second one, which has a lower activation energy, is concn. dependent and involves chloride-L exchange, probably via a pentacoordinated chloro bridge species. The influence of the basicity of the ligands on the activation energies of the processes is discussed.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10278/34233
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