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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Drexler, Hans-joachim Heller, Detlef Fischer, Christian Baumann, Wolfgang König, Anja Thede, Richard |
| Description | Author Affiliation: Fischer C ( Leibniz-Institut für Katalyse e.V. Albert-Einstein-Strasse 29a, 18059 Rostock, Germany.) |
| Abstract | $Rhodium–η^{6}-arene$ complexes can be generated in the presence of arenes following the hydrogenation of the diolefin in rhodium catalyst precursors of the type [Rh(PP*)(diolefin)]X (PP*=chelating diphosphane, X=noncoordinating anion). In this paper we report the characterization of such arene complexes with the ligands DuPhos, dipamp, dppe, Tangphos, dppf, and diop by means of NMR spectroscopy $(^{31}P,$ $^{103}Rh)$ and X-ray analysis. A procedure that follows the approach to equilibrium as a function of time monitored by using an UV/Vis diode array was used to determine 20 stability constants. Analyses were accomplished directly from the spectra by either a numeric and/or a new analytic solution of the underlying system of differential equations. Additionally thermodynamic parameters were determined in the temperature range between 278 and 318 K. |
| ISSN | 09476539 |
| e-ISSN | 15213765 |
| Journal | Chemistry - A European Journal |
| Issue Number | 38 |
| Volume Number | 18 |
| Language | English |
| Publisher | Wiley-VCH;ChemPubSoc Europe |
| Publisher Date | 2012-09-17 |
| Publisher Place | Germany |
| Access Restriction | Open |
| Subject Keyword | Cations Chemistry Chelating Agents Organometallic Compounds Rhodium Catalysis Kinetics Molecular Structure Stereoisomerism |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Catalysis |
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