Zobrazeno 1 - 9 of 9 pro vyhledávání: '"David A. Pippard"'
2
The activation of transition-metal carbonyl clusters
Autor: Brian F. G. Johnson, Jack Lewis, David A. Pippard
Publikováno v: Journal of Organometallic Chemistry. 160:263-274
Methods by which the reactivity of transition-metal osmium carbonyl clusters may be modified are explored.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c17af7002901c1990cebbf1b32a028e5
https://doi.org/10.1016/s0022-328x(00)91219-1
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4
X-Ray and neutron diffraction study of 1,1,1,2,2,2,3,3,3-nonacarbonyl-1,2;1,3-di-µ-hydrido-µ3-sulphido-triangulo-triosmium
Autor: Keith D. Rouse, Paul R. Raithby, Jack Lewis, George M. Sheldrick, David A. Pippard, Brian F. G. Johnson
Publikováno v: J. Chem. Soc., Dalton Trans.. :616-618
The title complex [Os3(CO)9H2(S)] crystallises in the monoclinic space group C2/c with a= 20.476(10), b= 13.952(7), c= 12.939(6)A, β= 123.84(3)°, and Z= 8. Simultaneous refinement of a single parameter set to 2 436 X-ray [(sinθ)/λ > 0.45] and 1 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::853a5e1efc0686ecb36302593230c684
https://doi.org/10.1039/dt9790000616
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5
Preparation of undecacarbonyltriosmium derivatives
Autor: David A. Pippard, Jack Lewis, Brian F. G. Johnson
Publikováno v: Journal of Organometallic Chemistry. 145:C4-C6
Undecacarbonyltriosmium derivatives have been prepared by treatment of dodecacarbonyltriosmium with amine oxide in low ratio (11). Substitution reactions with halogen acids lead to HOs(CO)11X derivatives which readily lose carbon monoxide to yield HO
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7027e090fff76d39b9b09351412ba2f8
https://doi.org/10.1016/s0022-328x(00)84082-6
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6
[Os3(CO)9H(SR)], a highly reactive molecule. The X-ray structure of a π-bound ethylene adduct [Os3(CO)9H(C2H4)(SMe)]
Autor: Jack Lewis, Paul R. Raithby, Brian F. G. Johnson, David A. Pippard
Publikováno v: J. Chem. Soc., Chem. Commun.. :551-552
The high reactivity of [Os3(CO)9H(SR)](R = Me or Et), associated with a variable co-ordination of the sulphur ligand, has enabled a range of adducts to be prepared; in particular the first X-ray diffraction study of a cluster containing ethylene π-b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6560afb51e1b650f5c6ce60bd75be680
https://doi.org/10.1039/c39780000551
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7
The preparation, characterisation, and some reactions of [Os3(CO)11-(NCMe)]
Autor: David A. Pippard, Brian F. G. Johnson, Jack Lewis
Publikováno v: Journal of the Chemical Society, Dalton Transactions. :407
The cluster [Os3(CO)11(NCMe)] has been prepared from the reaction of [Os3(CO)12] with NMe3O in the presence of MeCN. This cluster reacts with ligands L (L = CO, PPh3, CH3C6H4SO2CH2NC-p, C2H4, or C5H5N) to produce [Os3(CO)11L] derivatives and with HX
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::360a16b54654f8d71bd0c242ff2389e8
https://doi.org/10.1039/dt9810000407
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8
Copper catalysed reactions of di-t-butyl peroxide: oxidative carbonylation of alcohols to give dialkyl carbonates, oxalates, or succinates
Autor: Douglas Oakley, George E. Morris, David A. Pippard, David J. H. Smith
Publikováno v: Journal of the Chemical Society, Chemical Communications. :410
Di-t-butyl peroxide, (ButO)2 is an efficient and convenient oxidant in the copper(I) chloride or copper(I) chloride–palladium(II) acetylacetonate catalysed oxidative carbonylation of alcohols to dialkyl carbonate, oxalate, or succinate esters.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0cc32d7cba52af032c101e430d0fd37
https://doi.org/10.1039/c39870000410
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9
Copper catalysed reactions of di-t-butyl peroxide: evidence for copper(II) alkoxide intermediates and a non-radical reaction mechanism
Autor: David J. H. Smith, George E. Morris, David A. Pippard, Douglas Oakley
Publikováno v: Journal of the Chemical Society, Chemical Communications. :411
Reaction of di-t-butyl peroxide, (ButO)2, with CuI chloride species gives CuII alkoxy chlorides which are intermediates in the oxidative carbonylation reaction of alcohols to dialkyl carbonate, oxalate, or succinate esters and evidence is presented t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cea0d36de275bdb6d1f49ccee6c571dc
https://doi.org/10.1039/c39870000411
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