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A simple graphical method for analysis of lanthanide induced shifts

โœ Scribed by Richard M. Wing; Thomas A. Early; J.John Uebel

Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
204 KB
Volume
13
Category
Article
ISSN
0040-4039

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๐Ÿ“œ SIMILAR VOLUMES

A simple method for simulating lanthanid
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Recently we reported a simple topological approach to the computer simulation of Lanthanide Induced Shifts (LIS) in some substrates containing a carbonyl group: This approach revealed that the Lanthanide complexed with the substrate only in certain preferred positions. More importantly,the results

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## Abstract Some available methods for the analysis of lanthanide induced shift data have been examined. These methods are compared and evaluated using the data gathered from substituted phenyl __tert__โ€butyl carbinols.

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It is generally accepted l-9 that chemical shifts induced by lanthanide shift reagents are predominantly or entirely due to a dipolar shielding mechanism. Assuming axial symmetry lo the dipolar shifts Ai are given by the McConnell-Robertson equation (1)11 where C is a proportion-Ai = C(I -3cos2ei)/R