Adducts of Rh2[MTPA]4 with some phosphine chalcogenides : nature of binding and ligand exchange

Copyright 2004 John Wiley & Sons, Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Magnetic resonance in chemistry : MRC. - 1985. - 42(2004), 7 vom: 15. Juli, Seite 600-4
1. Verfasser: Gáti, Tamás (VerfasserIn)
Weitere Verfasser: Simon, András, Tóth, Gábor, Magiera, Damian, Moeller, Stefan, Duddeck, Helmut
Format: Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:Magnetic resonance in chemistry : MRC
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Chalcogens Ligands Phosphines Propylamines 3-methylthiopropylamine 4104-45-4 Rhodium DMK383DSAC
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520 |a Adducts of four phosphine chalcogenides with the chiral dirhodium complex ([Rh-Rh]) were investigated by variable-temperature 1H and 31P NMR spectroscopy in order to compare their properties as axial ligands. Whereas the selenide (1) and the sulfide (2) are strong ligands with electrostatic attraction and, in addition, a significant orbital (HOMO-LUMO) interaction, the phosphine oxide compounds (P=O) bind primarily via electrostatic attraction and are relatively weak donors. Moreover, the overall bond strength in these adducts depends on steric congestion around the P=O group 
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