Bauer, Susanne and Hunger, Cornelia and Bodensteiner, Michael and Ojo, Wilfried-Solo and Cros-Gagneux, Arnaud and Chaudret, Bruno and Nayral, Celine and Delpech, Fabien and Scheer, Manfred (2014) Transition-Metal Complexes Containing Parent Phosphine or Phosphinyl Ligands and Their Use as Precursors for Phosphide Nanoparticles. INORGANIC CHEMISTRY, 53 (21). pp. 11438-11446. ISSN 0020-1669, 1520-510X
Full text not available from this repository. (Request a copy)Abstract
P-H functional transition-metal complexes were synthesized without using hazardous PH3 gas in good yields by photolysis of the transition-metal carbonyl complexes M(CO)(6-x) (M = Cr, W, Fe; x = 0, 1) in tetrahydrofuran followed by reaction with P2(SiMe3)4 and subsequent methanolysis to give the bridging complexes [(CO)xM(mu-PH2)](2) (M = Fe, x = 3 (1), M = Cr, x = 4 (2a), M = W, x = 4 (2b)). The photolysis of [(CO)(4)M(mu-PH2)](2) (M = Cr (2a), M = W (2b)) with P(SiMe3)(3) was applied followed by methanolysis to synthesize the PH2 bridging transition-metal binuclear complexes with terminal PH3 groups. The products [(CO)(4)M(mu-PH2)(2)M(CO)(3)(PH3)] (M = Cr (3a), M = W (3b)) and [(CO)(4)W(mu-PH2)(2)W(CO)(2)(PH3)(2)] (4b) were isolated in moderate yield. Another synthetic approach to this type of compounds is the direct photolysis of the complexes [(CO)(3)M(PH3)(3)] (M = Cr (5a), M = W (5b)). The products were comprehensively characterized by (31)P NMR and IR spectroscopy as well as by X-ray structural analysis. Additionally, the relevancy of 2a as single source precursor for the synthesis of stoichiometry-controlled CrP nanoparticles has been demonstrated.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SOURCE MOLECULAR PRECURSORS; CRYSTAL-STRUCTURE; PNICTIDES; GEOMETRY; CLUSTERS; FILMS; BOND; CR; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Aug 2019 07:58 |
| Last Modified: | 08 Aug 2019 07:58 |
| URI: | https://pred.uni-regensburg.de/id/eprint/9223 |
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