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- Title
Formation of Mono Oxo Molybdenum(IV) PNP Pincer Complexes: Interplay between Water and Molecular Oxygen.
- Authors
de Aguiar, Sara R. M. M.; Öztopcu, Özgür; Troiani, Anna; de Petris, Giulia; Weil, Matthias; Stöger, Berthold; Pittenauer, Ernst; Allmaier, Günter; Veiros, Luis F.; Kirchner, Karl
- Abstract
The synthesis of cationic mono oxo MoIV PNP pincer complexes of the type [Mo(PNPMe-iPr)(O)X]+ (X = I, Br) from [Mo(PNPMe-iPr)(CO)X2] is described. These compounds are coordinatively unsaturated and feature a strong Mo=O triple bond. The formation of these complexes proceeds via cationic 14e intermediates [Mo(PNPMe-iPr)(CO)X]+ and requires both molecular oxygen and water. ESI MS measurements with 18O labeled water (H218O) and molecular oxygen (18O2) indicates that water plays a crucial role in the formation of the Mo=O bond. A plausible mechanism based on DFT calculations is provided. The Xray structure of [Mo(PNPMe-iPr)(O)I]SbF6 is presented.
- Subjects
METAL complexes; MOLYBDENUM; INTERMEDIATES (Chemistry); DENSITY functional theory; REACTION mechanisms (Chemistry)
- Publication
European Journal of Inorganic Chemistry, 2018, Vol 2018, Issue 7, p876
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201701413