Efficient photorelease of carbon monoxide from a luminescent tricarbonyl rhenium(i) complex incorporating pyridyl-1,2,4-triazole and phosphine ligands

Dalton Transactions ◽

10.1039/d0dt03577g ◽

2021 ◽

Author(s):

Ángel D. Hernández Mejías ◽

Alexandre Poirot ◽

Meriem Rmili ◽

Nadine Leygue ◽

Mariusz Wolff ◽

...

Keyword(s):

Carbon Monoxide ◽

Colour Change ◽

Phosphine Ligands

In this new Re(i) PhotoCORM, the efficient photoproduction of carbon monoxide is visualized through a strong colour change of the emitted phosphorescence.

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Palladium Catalyzed Alternating Cooligomerization of Ethylene and Carbon Monoxide to Unsaturated Ketones

Zeitschrift für Naturforschung B ◽

10.1515/znb-1995-0318 ◽

1995 ◽

Vol 50 (3) ◽

pp. 430-438 ◽

Cited By ~ 39

Author(s):

Wilhelm Keim ◽

Heiko Maas ◽

Stefan Mecking

Keyword(s):

Carbon Monoxide ◽

Palladium Catalysts ◽

Methylene Chloride ◽

General Structure ◽

Phosphine Ligands ◽

Unsaturated Ketones ◽

Palladium Catalyzed ◽

First Time ◽

Cationic Palladium

Cationic palladium catalysts have been used to cooligomerize ethylene and carbon monoxide. At high ethylene/CO ratios (m /m = 10:1) in methylene chloride as a solvent, unsaturated alternating cooligomers of the general structure R[C(O)CH2CH2]mH ( m ≥ 1 ; R ≡CH2=CH-, CH2=CHCH2CH2- and CH3CH = CHCH2-) were obtained for the first time. Single component catalyst precursors [(allyl)Pd(P^X )]+Y- (P^X = Ph2P(CH2)nC(= O )OR, Ph2P(CH2)2P(=O)Ph2, Ph2P(CH2)nPh2P(CH2)2S (=O )Ph, n = 1 - 3 , R = Me, Et; Y- = BF4-, SbF6- ) with bidentate P,O- and P,S-ligands as well as in situ catalysts with unfunctionalized phosphine ligands were used. With P"Bu3 as a ligand, selectivities for ethylvinylketone of 40% based on the CO converted were obtained. The hemilabile phosphino-ester and phosphinothiophene ligands behave like monodentate phosphines under catalytic conditions.

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Chemistry and catalytic properties of oxidized rhodium chlorocarbonyl complexes, Rh4Cl4(CO)4(O2)2P2; P = tertiary phosphine ligands

Canadian Journal of Chemistry ◽

10.1139/v78-320 ◽

1978 ◽

Vol 56 (15) ◽

pp. 1965-1969 ◽

Cited By ~ 10

Author(s):

William R. Cullen ◽

Brian R. James ◽

Giorgio Stukul

Keyword(s):

Carbon Dioxide ◽

Carbon Monoxide ◽

Catalytic Hydrogenation ◽

Catalytic Properties ◽

Phosphine Ligands ◽

Carbon Dioxide Evolution ◽

Tertiary Phosphine ◽

Tetranuclear Complexes

The reactions of the title complexes Rh4Cl4(CO)4(O2)2P2 (where P is a tertiary phosphine type ligand, in particular diphenylisobutylphosphinite) with both dihydrogen and carbon monoxide were studied in solution in the absence and presence of excess P. The reaction stoichiometries, particularly a measured carbon dioxide evolution, confirm the formulation of the reactant tetranuclear complexes. The complexes are effective for catalytic hydrogenation and hydroformylation of olefinic substrates, and the nature of the active catalysts is considered.

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