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Lanthanide-induced contact shifts in polyglycoldimethylethers V additivity of the shifts

โœ Scribed by A.M. Grotens; E. de Boer; J. Smid

Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
203 KB
Volume
14
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

aooepted for publioation 15 &U&I 1973) Recently Ius et al. (I) investigated the effect of Eu(DPM)3 (2-3) on the NMR spectrum of a solution of the bifuncrional compound 17-carbomethoxy-msthylene-5-androsten-38-01 in CDC13.

They found that the contriburions to the lanthanide induced (LI) shift for each proton in this compound due to coordination of Eu(DPM)3 aLt the two functional groups are additive.

We like to present here a few more examples supporting rhis addirivity rule, viz. Eu(DPM)3 (2-3)

๐Ÿ“œ SIMILAR VOLUMES

Evidence for Contact and Pseudo-Contact
Evidence for Contact and Pseudo-Contact Contributions in Lanthanide-Induced 31P N.M.R. Shifts
โœ Jeremy K.M. Sanders; Dudley H. Williams ๐Ÿ“‚ Article ๐Ÿ“… 1971 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 183 KB

The remarkable p.m.r. shift properties of Eu(DPM)~ and related compounds have recently been extensively studied, l-4 and have been employed successfully to solve several otherwise difficult problems. 5-a With few exceptions, however, published work in this field has been largely descriptive, and in