NUCLEAR MAGNETIC RESONANCE STUDIES OF METAL COMPLEXES WITH ETHYLENEDIAMINE-N,N′-DIACETATE-N,N′-DI-β-PROPIONATE  

作　　者：牛春吉 E.N.Rizkalla G.R.Choppin 

机构地区：[1]Changchun Institute of Applled Chemistry,Academia Sinica,Changchun 130022,China [2]Department of Chemistry,the Florida State University

出　　处：《Journal of Rare Earths》1990年第4期246-251,共6页稀土学报（英文版）

摘　　要：The complexes of metals(Mg,Ca,Sr,Ba,La,Y and Lu)with ethylenediamine-N,N′-diacetate-N, N′-di-β-propionate have been studied by proton nuclear magnetic resonance(PMR).The interesting quartet spectral pattern of acetate protons and multiplet spectral pattern of protons of propionate groups for the complexes of metal ions of high charge density have been observed.The results show that the chemical bond for these complexes is predominantly ionic and the lability of metal-nitrogen bond as well as metal- oxygen bond decreases with increasing charge density of cations.The complexes of metals(Mg,Ca,Sr,Ba,La,Y and Lu)with ethylenediamine-N,N′-diacetate-N, N′-di-β-propionate have been studied by proton nuclear magnetic resonance(PMR).The interesting quartet spectral pattern of acetate protons and multiplet spectral pattern of protons of propionate groups for the complexes of metal ions of high charge density have been observed.The results show that the chemical bond for these complexes is predominantly ionic and the lability of metal-nitrogen bond as well as metal- oxygen bond decreases with increasing charge density of cations.

关 键 词：Pro PROPIONATE DI DIACETATE-N N NUCLEAR MAGNETIC RESONANCE STUDIES OF METAL COMPLEXES WITH ETHYLENEDIAMINE-N N 

分 类 号：TF845-55[冶金工程—有色金属冶金]