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- W2073402005 abstract "The new pyridine-based sulfoxide pincer ligand 1 (2-(diethylaminomethyl)-6-(tert-butylsulfinylmethyl)pyridine = S(O)NN) reacts cleanly with Rh2(COE)4Cl2 to form the neutral water- and air-stable RhI complex [Rh(S(O)NN)(NCCH3)], 1. The cationic complexes [Rh(S(O)NN(NCCH3)][BF4] (2) and [Ir(S(O)NN)(COE)][BF4] (5) were obtained by the reaction of 1 with the appropriate metal precursors. The corresponding carbonyl complexes [Rh(S(O)NN)(CO)][PF6] (4) and [Ir(S(O)NN)(CO)][BF4] (7) exhibit νCO in the IR spectra that shows that ligand 1 is a relatively poor σ-donor ligand compared to the more common PNP-type ligands, resulting in rather electron-poor metal centers. The carbonyl compounds can be deprotonated to the remarkably stable dearomatized complexes Rh(S(O)NN*)(CO) (8) and Ir(S(O)NN*)(CO) (9). DFT studies on 8 revealed a high electron delocalization over the pyridine ring system and the sulfur atom, which explains the high stability of 8 toward reprotonation. Complete protonation of 8 was achieved in acetic acid." @default.
- W2073402005 created "2016-06-24" @default.
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- W2073402005 creator A5086773368 @default.
- W2073402005 date "2008-03-25" @default.
- W2073402005 modified "2023-09-23" @default.
- W2073402005 title "Pyridine-Based Sulfoxide Pincer Complexes of Rhodium and Iridium" @default.
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- W2073402005 doi "https://doi.org/10.1021/om701276s" @default.
- W2073402005 hasPublicationYear "2008" @default.
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