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Rôle catalytique de l'eau et des sels lors de l'hydrolyse alcaline des esters en milieu hydro-alcoolique

Autor: J. Corset, Gerard Nee, B. Tchoubar, G. Leny, M. L. Josien, R. M. Moravie

Publikováno v: Tetrahedron. 32:693-700

Infrared spectra of esters in water-alcohol mixtures, with or without added salts, indicate the formation of 1:1 or 1:2 complexes through hydrogen bonding between the ester carbonyl group and the proton donor molecules of the solvent, as well as the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38299d8dc2fb42bde1d401d81e949a94
https://doi.org/10.1016/s0040-4020(01)93793-7

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Isolation and investigation of the complex Li3[FeNp3N2]·nEt2O - the product of interaction of molecular nitrogen with a naphthyl derivative of zero-valent iron

Autor: A. K. Shilova, L.M. Kachapina, B. Tchoubar, A.E. Shilov, T.A. Bazhenova, I. N. Ivleva

Publikováno v: Journal of Organometallic Chemistry. 296:95-101

The complex Li3[FeNp3N2]·nEt2O produced by the reaction of N2, with Li3FeNp3·mEt2O has been isolated and its magnetic properties and IR spectra investigated. The proposed structure of the complex includes the linear fragment FeNNLi.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bb1a7efd34137b8e4ed42ad70f04d62
https://doi.org/10.1016/0022-328x(85)80341-7

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Obtention d'un complexe de fer(II) ne comportant que des ligands σ, le bis-lithium tetranaphtylferrate, et sa transformation par action de C3H7Li en un complexe reducteur de N2

Autor: A.K. Shilova, Michel Gruselle, B. Tchoubar, G. Leny, T.A. Bagenova, E. Deschamps

Publikováno v: Journal of Organometallic Chemistry. 222:C1-C4

FeCl3 and naphthyllithium in ether at −30°C afford an iron(II) complex containing σ-ligands only, dilithium tetranaphthyl ferrate, which is stable at room temperature, in the absence of air and water and crystallises with two moles of ether. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8353906ddf888084cae196d6441b1076
https://doi.org/10.1016/s0022-328x(00)89026-9

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Structure of the intermediate iron(0) complex isolated from the dinitrogen fixing system LiPh + FeCl3

Autor: Michel Gruselle, R.M. Lobkovskaya, G. Leny, A. K. Shilova, A.E. Shilov, T.A. Bazhenova, R.P. Shibaeva, B. Tchoubar

Publikováno v: Journal of Organometallic Chemistry. 244:265-272

The structure of the complex Fe0(LiPh)4(Et2O)4, active towards dinitrogen, reveals a flat rectangular structure formed by carbon atoms of four phenyl rings linked by σ-bonds with Fe0 atom. The comparatively short interatomic distance between two car

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::876e65309e58c12201ead2b06ff8f925
https://doi.org/10.1016/s0022-328x(00)98618-2

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Resonance paramagnetique electronique

Autor: B. Tchoubar, C. Fabre, P. Ackermann, J. P. Germain, F. Barbarin

Publikováno v: Tetrahedron. 30:1019-1023

Resume De profondes modifications de la reparition des densites de spin sur les radicaux semiquinones sont observees, en phase dissoute isotrope, lorsque l'on passe d'un milieu protique a un milieu aprotique. Mais les modifications apportees presente

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e3f3b81f2a8ea23d6184b5c190b1f652
https://doi.org/10.1016/s0040-4020(01)97490-3

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état actuel de la théorie de la structure en chimie organique

Autor: B. Tchoubar

Publikováno v: Il Nuovo Cimento. 4:101-134

Les etonnants progres realises par la chimie depuis la creation de la theorie de la structure jusqu’a nos jours, prouvent la justesse incontestable des principes fondamentaux de cette theorie, a savoir: 1) Les molecules presentent une structure det

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37a28d4fbbcbc067397b75fdee76c33f
https://doi.org/10.1007/bf02743691

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