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Proton chemical shifts in NMR spectra of diamagnetic metal-aminopolycarboxylate complexes

✍ Scribed by Pavol Balgavý; Pavol Novomeský; Jaroslav Majer

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
284 KB
Volume
39
Category
Article
ISSN
0020-1693

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✦ Synopsis

The proton chemical shifts of 2-hydroxy-1,3propanediamine-N,N,N',N'-tetraacetic acid and 1,3propanediamine-N,N,N',N'-tetraacetic acid in 1 :I complexes with diamagnetic metal ions have been investigated as a function of the metal ion charge Z and crystal ionic radius r. The chemical shifts correlate with Zfr linearly but separately in (II)A, (II)B, and lanthanide group. The inductive effects, long-range shielding and solvent ordering effects of metal ions are discussed as the possible contributions to the proton chemical shifts.

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