Marzin, Claude and Leibfritz, Dieter and Hawkes, Geoffrey E. and Roberts, John D. (1973) Nuclear magnetic resonance shift reagents: Abnormal 13C shifts produced by complexation of lanthanide chelates with saturated amines and n-butyl isocyanide. Proceedings of the National Academy of Sciences of the United States of America, 70 (2). pp. 562-563. ISSN 0027-8424. http://resolver.caltech.edu/CaltechAUTHORS:MARpnas73
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Lanthanide-induced shifts of 13C nuclear magnetic resonances are reported for several amines and n-butyl isocyanide. Contact contributions to such shifts, especially of ß carbons, are clearly important for the chelates of Eu+3 and Pr+3. The importance of contact terms is shown to change in a rather predictable manner with the structure of the amine.
|Additional Information:||© 1973 by the National Academy of Sciences. Contributed by John D. Roberts, November 17, 1972. This work was supported by the National Science Foundation, and the Public Health Service, Research Grant GM-11072 from the Division of General Medical Sciences. This paper is Contribution no. 4485 from the Gates and Crellin Laboratories of Chemistry. D.L. is a Deutsche Forschungsgemeinschaft Postdoctoral Research Fellow, 1970-71. G.E.H. is a NATO Postdoctoral Fellow, 1970-72.|
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|Deposited By:||Tony Diaz|
|Deposited On:||27 Nov 2007|
|Last Modified:||26 Dec 2012 09:46|
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