Comparison of free and metal coordinated 1,4-disubstituted-1,4-diaza-1,3-butadienes

Jan Keijsper, Henk G. van der Poel, Louis H. Polm, +5

Polyhedron

Organic ChemistryHeterocyclicChemistryHeterocycle Chemistry

“Green” MMA; an environmentally benign and economically attractive process for the production of methyl methacrylate

Jan Keijsper, P. Arnoldy, Michael J. Doyle, +1

Recueil des Travaux Chimiques des Pays-Bas

EngineeringMethanolGreen ChemistryOrganic ChemistryChemistry +17

Binuclear metal carbonyl DAB complexes. 6. Syntheses and spectroscopic properties of MCo(CO)5(.mu.2-CO)(DAB) (M = manganese, rhenium; DAB = 1,4-diazabutadiene). X-ray structure of [.sigma.2-N,.sigma.2-N',.eta.2-C:N-[glyoxal bis(tert-butylimine)]]hexacarbonylcobaltmanganese

L. H. STAAL, Jan Keijsper, G. Van Koten, +3

Inorganic Chemistry

Inorganic ChemistryChemical EngineeringSpectroscopic PropertiesEngineeringDonut Icon +8

Ruthenium carbonyl 1,4-diaza-1,3-butadiene (R-DAB) complexes. 5. Syntheses, spectroscopic properties, and reactivity of Ru2(CO)5(alkyl-DAB), a key intermediate in the Ru3(CO)12-alkyl-DAB reaction. Crystal and molecular structure of (1,4-diisopropyl-1,4-diaza-1,3-butadiene)pentacarbonyldiruthenium, Ru2(CO)5(isopropyl-DAB)

Jan Keijsper, Louis H. Polm, Gerard van Koten, +1

Inorganic Chemistry

Inorganic ChemistryKey IntermediateBiochemistry12-Alkyl-dab ReactionDonut Icon +8

Ruthenium carbonyl 1,4-diaza-1,3-butadiene complexes. Part 6. Ruthenium carbonyl 1,4-diaza-1,3-butadiene (R-DAB) reaction sequence. Reversible carbonyl addition to a trinuclear species without rupture of a metal-metal bond. Molecular structure of [1,4-dicyclohexyl-1,4-diaza-1,3-butadiene]nonacarbonyltriruthenium, Ru3(CO)9(c-Hx-DAB): a unique 50e trinuclear compound with two elongated ruthenium-ruthenium bonds

Jan Keijsper, Louis H. Polm, Gerard van Koten, +3

Inorganic Chemistry

Inorganic ChemistryRuthenium-ruthenium Bondsjan KeijsperEngineeringElongated Ruthenium-ruthenium BondsBiochemistry +11

Ruthenium carbonyl 1,4-diaza-1,3-butadiene (R-DAB) complexes. Reactivity of Ru2(CO)5(R-DAB) toward molecular hydrogen. Molecular structure of H2Ru4(CO)8(R-DAB)2, containing an unique linear chain of four ruthenium atoms

Jan Keijsper, Louis H. Polm, Gerard van Koten, +3

Organometallics

Inorganic ChemistryEngineeringBiochemistryNatural SciencesMolecular Hydrogen +11

Binuclear metal carbonyl R-DAB complexes. 11. Conversion of coordinated 1,4-diaza-1,3-butadienes into 3-amino-1-azaallyl monoanions by interaction with [HFe(CO)4]-. Molecular structure of [FeMn(CO)6{(tert-Bu)N:CH-CHN(H)(tert-Bu)}], containing an .eta.3-1-azaallyl moiety bonded to iron

Jan Keijsper, John Mul, Gerard van Koten, +1

Organometallics

Inorganic ChemistryCoordinated 1,4-Diaza-1,3-butadienesR-dab ComplexesEngineeringBiochemistry +11

Binuclear metal carbonyl R-DAB complexes. Part XIII. Reduction of coordinated 1,4-diaza-1,3-butadiene to dianionic 1,2-diaminoethane by [HFe(CO)4]−. Molecular structure of [(μ-H)FeMn(CO)6{μ,μ′-N(p-Tol)CH2CH2N(p-Tol)}], a pseudo-symmetrical hetero-dinuclear species

Jan Keijsper, Paul Grimberg, Gerard van Koten, +3

Inorganica Chimica Acta

Inorganic ChemistryChemical EngineeringR-dab ComplexesEngineeringCoordination Complex +5

The first eight-electron-bonded tert-Bu-DAB complex. Carbon-carbon coupling of two tert-Bu-DAB ligands on manganese. X-ray structure of Mn2(CO)6(tert-Bu-IAE), hexacarbonylbis[1-(tert-butylimino)-2-(tert-butylamino)ethane]dimanganese, containing a novel, asymmetrically bridging, eight-electron-donating IAE ligand

Jan Keijsper, Gerard van Koten, Kees Vrieze, +2

Organometallics

Materials ScienceInorganic ChemistryEngineeringNatural SciencesCoordination Complex +10

Ruthenium carbonyl 1,4-diaza-1,3-butadiene (R-DAB) complexes. Reactivity of Ru2(CO)6(R-DAB) towards hetero-allenes L(L = carbodiimide, sulphine), resulting in CC bond formation. X-ray molecular structure of Ru2(CO)5 (t=BuNCHC(H)(N-t-Bu)C(N-p-Tol)N-p-Tol) and of Ru2(CO)5(i-PrNCHC(H)(N-i-Pr)C(S)C12H8)

Jan Keijsper, Louis H. Polm, Gerard van Koten, +3

Inorganica Chimica Acta