Scheer, Manfred and Himmel, Daniel and Kuntz, Christian and Zhan, Shuzhong and Leiner, Eva (2008) Reactivity of Transition Metal-Phosphorus Triple Bonds towards Triply Bonded : Formation of Heteronuclear Cluster Compounds. Chemistry - A European Journal 14 (29), pp. 9020-9029.
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Thermolysis of [Cp*P2] (1) in the presence of  leads to the novel complexes [(,2:1:1-P22)] (6; Cp=5-C5H5, Cp*=5-C5Me5),  (7),  (8) and [2(3-P)] (9). The structural framework of the main products 8 and 9 can be described as a tetrahedral Mo2WP unit that is formed by a cyclisation reaction of  with an [Cp*(CO)2WPW(CO)5] intermediate containing a WP triple bond and subsequent metal-metal and metal-phosphorus bond formation. Photolysis of 1 in the presence of  gives 8, 9 and phosphinidene complex [(3-PW(CO)5)] (10), in which the P atom is in a nearly trigonal-planar coordination environment formed by one and two units. Comprehensive structural and spectroscopic data are given for the products. The reaction pathways are discussed for both activation procedures, and DFT calculations reveal the structures with minimum energy along the stepwise Cp* migration process under formation of the intermediate [Cp*(CO)2WPW(CO)5].
|Date:||11 August 2008|
|Institutions:||Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer|
|Keywords:||cluster compounds; molybdenum; phosphorus; reactive intermediates; tungsten|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||07 Jun 2010 12:21|
|Last Modified:||20 Jul 2011 22:29|