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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > September  >
In the Laboratory
1,5 Cyclooctadiene Complexes of Iridium: Synthesis, Characterization, and Reaction with Dihydrogen. An Experiment for an Integrated Physical/Inorganic Laboratory Course
John W. Logan and Mark Wicholas
Department of Chemistry, Western Washington University, Bellingham, WA 98225
Cover
September 2001
Vol. 78 No. 9
p. 1272
Abstract
An experiment for an integrated physical/inorganic laboratory course involving a sequence of reactions starting with the iridium(I) complex [Ir(COD)Cl]2, COD = 1,5-cyclooctadiene, is presented. The crux of the experiment is the reaction of [Ir(COD)(Ph3P)2]BF4 with dihydrogen in a valve NMR tube in the absence of dioxygen and the determination of the coordination mode of dihydrogen, h2-H2 or dihydride, by a NMR T2 relaxation measurement.
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A handout for students presenting detailed background, experimental procedures, and instructions for the lab report is available.
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*  Citation
 Logan, John W.; Wicholas, Mark. J. Chem. Educ. 2001 78 1272.
*  Keywords
 Coordination Chemistry; Inorganic Synthesis; Laboratory Instruction; NMR Spectrometry; Organometallics; Iridium; Hydrogen
*  History
 Created:
Last Updated:		 August 14, 2001
August 31, 2005
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