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Van der Waals Forces and Shielding Effects by Frans H.A. Rummens (Paperback, 2012)

About this product

About this product

Product Information

The usefulness of solvent effect studies on NMR chemical shifts need not be elabo rated here; many applications of solvent effects continue to be published in great profusion. Quite a few intermolecular phenomenae may contribute to solvent shifts, but there is always the ubiquitous Van der Waals effect ow. Contrary to such other effects as neighbour anisotropy 0a, reaction field contribution 0E or complexation effects 0e, no major direct use has yet been found for the Van der Waals effect. So far the role of the Van der Waals effect has been that of a nasty, disturbing phenom enon, something to be eliminated at all costs. But it is precisely in this latter respect where almost all solvent effect studies fall short. Not only is Ow usually large (larger than 0a and 0E even in 1 H NMR and probably the dominating term with heavier nuclei), but it is strongly variable from one solute to another and even from one nu clear site to another in the same solute molecule. No referencing technique, however cleverly devised, will be capable of eliminating the Ow contribution from the other, presumedly more interesting contributions. It appeared quite recently that mathematical trickery by the name of factor analysis could achieve the sought-for separation of contribuants.

Product Identifiers

Publisher
Springer-Verlag Berlin and Heidelberg Gmbh & Co. Kg
ISBN-13
9783642661785
eBay Product ID (ePID)
117492909

Product Key Features

Author
Frans H.A. Rummens
Publication Name
Van Der Waals Forces and Shielding Effects
Format
Paperback
Language
English
Subject
Chemistry, Physics
Publication Year
2012
Type
Textbook
Number of Pages
122 Pages

Dimensions

Item Height
244mm
Item Width
170mm
Volume
10
Item Weight
236g

Additional Product Features

Title_Author
Frans H.A. Rummens
Series Title
NMR Basic Principles and Progress
Country/Region of Manufacture
Germany

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