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2001
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In the Laboratory
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Advanced Chemistry Classroom and Laboratory
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Metal Complexes of Trifluoropentanedione. An Experiment for the General Chemistry Laboratory
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Robert C. Sadoski
School of Physical and Life Sciences, Arkansas Tech University, Russellville, AR 72801
David Shipp, and Bill Durham
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701
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May 2001
Vol. 78 No. 5
p. 665
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| Abstract |
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The transition-metal complexes produced by the reactions of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), and Cu(II) with 1,1,1-trifluoro-2,4-pentanedione form the basis of this general chemistry laboratory exercise. The complexes can be prepared quickly in 40-60% yield from 150 mg of the metal nitrates. Mass spectroscopy is used to determine the stoichiometry of the reaction products. GCMS is used to show that two isomers result from the formation of the octahedral complex Cr(tfac)3. The end result is a brief survey of the reactions of these first-row transition metals.
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| Supplement |
The complete description of this experiment, a laboratory handout, and notes to instructors are available.
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 Contents |
JCE2001p0665W.doc (MS Word)
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| Download |
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| More Information |
Citation |
Sadoski, Robert C.; Shipp, David; Durham, Bill. J. Chem. Educ. 2001 78 665.
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Keywords |
Chromium; Coordination Chemistry; Copper; General Chemistry; Inorganic Chemistry; Inorganic Synthesis; Laboratory Instruction; Mass Spectrometry; Transition Elements
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History |
Created:
Last Updated: |
March 22, 2001
August 31, 2005
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