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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > May  >
In the Laboratory
Determination of the Magnetic Moments of Transition Metal Complexes Using Rare Earth Magnets
Kevin C. de Berg and Kenneth J. Chapman
Department of Chemistry, Avondale College, PO Box 19, Cooranbong, NSW 2265, Australia
Cover
May 2001
Vol. 78 No. 5
p. 670
Abstract
This paper describes how powerful neodymium magnets and an electronic balance can be used to determine magnetic moments and susceptibilities of transition metal complexes. The technique is an improvement on one previously reported (J. Chem. Educ. 1998, 75, 61) and allows the effect of temperature on paramagnetism to be studied. Results consistent with the Curie law are reported and a theoretical background to the measurement of magnetic moments is given to explain why magnetic field strength and its gradient are important to the technique described.
Supplement
Some notes on background derivations, with relevant references, are available.
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*  Citation
 de Berg, Kevin C.; Chapman, Kenneth J. J. Chem. Educ. 2001 78 670.
*  Keywords
 Coordination Chemistry; Inorganic Chemistry; Laboratory Equipment / Apparatus; Laboratory Instruction; Magnetic Properties; Transition Elements
*  History
 Created:
Last Updated:		 March 22, 2001
August 31, 2005
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