Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 15 September 1972:
Vol. 177. no. 4053, pp. 994 - 996
DOI: 10.1126/science.177.4053.994
Prev | Table of Contents | Next

Articles

Lanthanide Complexes as Nuclear Magnetic Resonance Structural Probes: Paramagnetic Anisotropy of Shift Reagent Adducts

William DeW. Horrocks Jr. 1 and James P. Sipe III 1

1 Whitmore and Chandlee Laboratories, Department of Chemistry, Pennsylvania State University, University Park 16802

Magnetic anisotropy measurements on single crystals of a series of paramagnetic 8-coordinate lanthanide shift reagent adducts of the type Ln[(CH3)3CCOCHCOC(CH3)3(4-CH3C5H1N)2 have been made for the following lanthanides: praseodymium, neodymium, samarium, europium, terbium, dysprosium, holmium, erbium, thulium, and ytterbium. The susceptibility tensors are highly anisotropic and nonaxial. Dipolar nuclear magnetic resonance shifts evaluated from the solid-state date are in satisfactory agreement with the solution results.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Determination of molecular conformation in solution.
M. Willcott 3rd and R. Davis (1975)
Science 190, 850-857
   PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)