| NUCLEAR MAGNETIC RESONANCE STUDIES OF METAL COMPLEXES WITH ETHYLENEDIAMINE-N,N′-DIACETATE-N,N′-DI-β-PROPIONATE |
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| 作者姓名： | 牛春吉 E.N.Rizkalla G.R.Choppin |
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| 作者单位： | Changchun Institute of Applled Chemistry Academia Sinica，Changchun 130022，China，Department of Chemistry，the Florida State University，Department of Chemistry，the Florida State University |
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| 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 interestingquartet spectral pattern of acetate protons and multiplet spectral pattern of protons of propionate groups forthe complexes of metal ions of high charge density have been observed.The results show that the chemicalbond 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.
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