FLUXIONAL BEHAVIOR OF ALLYLPALLADIUM(II) DERIVATIVES OF N,N'-DIARYLFORMAMIDINES AND 1,3-DIARYLTRIAZENES

被引:9
作者
BOSCHI, T
BELLUCO, U
TONIOLO, L
FAVEZ, R
ROULET, R
机构
[1] UNIV PADUA,IST CHIM GEN & INORGAN,I-35100 PADUA,ITALY
[2] UNIV PADUA,IST CHIM INORGAN IND,I-35100 PADUA,ITALY
[3] UNIV LAUSANNE,INST INORGAN & ANALYT CHEM,CH-1000 LAUSANNE,SWITZERLAND
关键词
D O I
10.1016/S0020-1693(00)94674-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reactions of allylpalladiumchloride dimer with neutral ligands (L = RNCHNHR, R = C6H5CH2, p-CH3C6H4, p-ClC6H4; L = RNNNHR, R = p-CH3C6H4, p-ClC6,H4) afford bridge splitting products of the type PdClL(1,3-η-C3H5). Variable temperature 1H and 13C NMR spectra show two dynamic processes in solution. The first one, operating at room temperature, involves the dissociation of the neutral ligand L; the second one, which has a lower activation energy, is concentration dependent and involves chloride-L exchange, probably via a pentacoordinated chloro bridged species. The influence of the basicity of the ligands on the activation energies of the processes is discusseed. © 1979.
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页码:37 / 41
页数:5
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