Intramolecular C–H Oxidative Addition to Iridium(I) in Complexes Containing a <i>N</i>,<i>N</i>′-Diphosphanosilanediamine Ligand
作者:Vincenzo Passarelli、Jesús J. Pérez-Torrente、Luis A. Oro
DOI:10.1021/ic4024458
日期:2014.1.21
equilibrium mixture of IrCl(CO)(SiNP) (4) and the hydride derivative of formula IrHCl(CO)(SiNP–H) (5) resulting from the intramolecular oxidative addition of the C–H bond of the SiCH3 moiety to the iridium(I) center. Furthermore, the prolonged exposure of [3]Cl or 2 to CO resulted in the formation of the iridium(I) pentacoordinated complex Ir(SiNP–H)(CO)2 (6). The unprecedented κ3C,P,P′ coordination mode
Reactivity of Novel <i>N</i>,<i>N′</i>-Diphosphino-Silanediamine-Based Rhodium(I) Derivatives
作者:Vincenzo Passarelli、Franco Benetollo
DOI:10.1021/ic2004408
日期:2011.10.17
mononuclear complexes RhCl(SiNP)(L) (L = CO, 5; CNtBu, 6) have been isolated purely and quantitatively upon reaction of 2 with CO and CNtBu, respectively. Otherwise, PPh3 and RhCl(SiNP) equilibrate with Rh(Cl)(SiNP)(PPh3) (7). Carbon electrophiles such as MeI and 3-chloro-1-proprene afforded the oxidation of rhodium(I) to rhodium(III) and the formation of RhCl2(η3-C3H5)(SiNP) (8) and Rh(Me)(I)(SiNP)(acac)
En route to phosphonato iridium(<scp>i</scp>) complexes: the decisive effect of an intramolecular hydrogen bond
作者:Vincenzo Passarelli、Jesús J. Pérez-Torrente、Luis A. Oro
DOI:10.1039/c5dt04038h
日期:——
solution. Their reaction with trimethylphosphite yields the derivatives [Ir(SiNP)P(OMe)3}(tfbb)]Cl ([3]Cl) and IrPO(OMe)2}(HNP)2(tfbb) (4). The course of the reaction between IrCl(HNP)2(tfbb) (2) and trimethylphosphite was elucidated by NMR spectroscopy and DFT calculations, showing that the intermediate [Ir(HNP)2P(OMe)3}(tfbb)]+ (5+) forms and further reacts with the chloride anion yielding the phosphonato