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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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Ruthenium(II)-dppm Coordination Chemistry. An Advanced Inorganic Miniproject
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Simon J. Higgins
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
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May 2001
Vol. 78 No. 5
p. 663
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| Abstract |
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A guided miniproject involving aspects of Ru(II)-diphosphine complex synthesis and characterization, suitable for advanced undergraduate students, has been devised. It combines teaching of new synthetic and characterization techniques with the opportunity for a taste of research work in the latter part of the project. Students work in teams to prepare dppm (Ph2PCH2PPh2) and the labile starting material, [RuCl2(PPh3)3]. They then individually prepare [RuCl2(dppm)2], characterize it as trans by 1H and 31P NMR spectroscopy, and investigate its thermal isomerization to cis. This part of the project is based on a literature report (Sullivan, B. P.; Meyer, T. J. Inorg. Chem. 1982, 21, 1037). Each student then undertakes a different extension to the project; this can involve a study of Ru(II) complexes of the analogous distibine Ph2SbCH2SbPPh2, of a different diphosphine (e.g. dppe, Ph2PCH2CH2PPh2), or of dppm with a different halide ligand. Assessment is on the basis 50% for laboratory work and results (partly continuously assessed), 35% for a report, and 15% for an oral presentation, the latter two produced at the end of the project.
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| Supplement |
The complete description of this experiment and supplemental materials are available.
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 Contents |
JCE2001p0663W.doc (MS Word)
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| Download |
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| More Information |
Citation |
Higgins, Simon J. J. Chem. Educ. 2001 78 663.
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Keywords |
Coordination Chemistry; Inorganic Chemistry; Inorganic Synthesis; Laboratory Instruction; NMR Spectrometry
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History |
Created:
Last Updated: |
March 22, 2001
August 31, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
2001
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May
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663
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