Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Aminata Diasse Sarr"'
Autor:
AMINATA DIASSE SARR, LIBASSE DIOP
Publikováno v:
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, Vol 14, Iss 4, Pp 263-265 (2014)
On allowing Me4NOH as a methanolic solution or Et4NOH as an ethanolic solution to react with BO3H3 in ethanol, R4NOH∙2B2(OH)4 (R = Me, Et) are obtained and characterized by infrared. The subboric acid B2(OH)4 has been obtained in situ. An infinite
Externí odkaz:
https://doaj.org/article/ee582f8777854c50b650604bb4287c4a
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 6, Pp o1252-o1252 (2009)
In the title compound, C6H9N2S+·Cl−·CH4N2S, the 4,6-dimethyl-2-thioxo-1,2-dihydropyrimidin-3-ium cation is protonated at one of the pyrimidine N atoms. The cations are bridged by the chloride anions through a pair of N—H...Cl hydrogen bonds. Th
Externí odkaz:
https://doaj.org/article/42b5c362d06340a58123c2b58d8a2027
Autor:
MOUHAMADOU SEMBENE BOYE, MOUHAMADOU BIRAME DIOP, MODOU SARR, AMINATA DIASSE-SARR, LIBASSE DIOP, ALAIN WATTIAUX
Publikováno v:
Journal of Engineering Studies and Research, Vol 29, Iss 3 (2024)
Four new adducts catena-O,O′-glutaratotriphenylstannate, [(Me4N)2O2C(CH2)3CO2×4SnPh3Cl] (1), [(Me4N)2O2C(CH2)3CO2×3SnPh3Cl] (2), [(SnPh3)2O2C(CH2)3CO2×SnPh3Cl] (2′) and [(Cy2NH2)2O2C(CH2)3CO2×SnPh3Cl] (3), have been isolated from the reaction
Externí odkaz:
https://doaj.org/article/6ff7a0c59451406980b7300c6569fb56
Autor:
MOUHAMADOU SEMBENE BOYE, MOUHAMADOU BIRAME DIOP, MODOU SARR, AMINATA DIASSE-SARR, LIBASSE DIOP, ALAIN WATTIAUX
Publikováno v:
Journal of Engineering Studies and Research, Vol 29, Iss 1 (2023)
Four new carboxyalkylphosphonate SnR2 residue (R = Me, Ph, Bu) containing adducts and derivatives i.e. {(Cy2NH2)3(O2CCH2PO3)(SnBu2Cl2)} (1), {[(SnMe2Cl)(O2CCH2PO3H2)]4[Cy2NH2Cl]} (2), {(Me4N)(SnPh2Cl)[O2C(CH2)2 PO3H](SnPh2)[O2C(CH2)2PO3H]} (3) and {(
Externí odkaz:
https://doaj.org/article/d50f0587d8194b1ba91ec3d9d6e184fb
Publikováno v:
Journal of Engineering Studies and Research, Vol 26, Iss 3 (2020)
Three organotin (IV) derivatives PhPO3HSnBu2Cl, SnBu2Ph2PO2Cl×3/2H2O, Sn(PhPO3)Cl2×2H2O obtained on allowing PhPO3H2 or propylammonium PhPO3H to react with SnBu2Cl2, SnCl2×2H2O and two adducts [(C6H5CH2)2NH2]3O2C(CH2)2PO3×3SnPh3Cl, [CyNH3(HO2POCH
Externí odkaz:
https://doaj.org/article/2a9d7d140e6543dfa8e4d4fd32b7798a
Publikováno v:
Journal of Engineering Studies and Research, Vol 26, Iss 3 (2020)
The title polymer [HCO2Sn(C6H5)3]n was isolated by serendipitous from reaction in ethanol 96 % between bis-(monocyclohexyl ammonium) 2-carboxyethyl hydrogen phosphonate, {(CyNH3)2[CO2CH2CH2PO2(OH)]} and triphenyltin chloride, SnPh3Cl. The polymer cry
Externí odkaz:
https://doaj.org/article/da0cd7c6167f48268dc6af42114c87ef
Publikováno v:
Journal of Engineering Studies and Research, Vol 26, Iss 2 (2020)
The synthesis and spectroscopic studies (infrared and Mössbauer) of new hydrogenoxalato derivatives and adducts containing SnRn (R=Me, Ph; n=2, 3) residues are reported. Based on their spectroscopic data dimeric and polymeric structures containing h
Externí odkaz:
https://doaj.org/article/87d7ac6e53354ab0b6924fa82bf23d2d
Autor:
MODOU SARR, MOUHAMADOU BIRAME DIOP, MOUHAMADOU SEMBENE BOYE, AMINATA DIASSE-SARR, PHILIPPE GUIONNEAU
Publikováno v:
Journal of Engineering Studies and Research, Vol 26, Iss 2 (2020)
Hydrogen phosphonate anions and monocyclohexylammonium cations interacting through hydrogen bonds conduct to the formation of a salt namely monocyclohexylammonium hydrogen phosphonate. In this structure, hydrogen phosphonate anions are linked by pair
Externí odkaz:
https://doaj.org/article/e8c140ba61a741d39d1771c650ead6b0
Publikováno v:
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, Vol 16, Iss 2, Pp 185-188 (2015)
On allowing PhPO3H2 to react with SnPh3Cl in ethanolic media, OC[OPOSnPh3OEt]2 is obtained by cetonization, desarylation and esterification, has been studied by infrared technic. A discrete structure has been suggested on the basis of infrared data,
Externí odkaz:
https://doaj.org/article/c27d3ea5ce1846c09132de23093f0256
Publikováno v:
Journal of Engineering Studies and Research, Vol 23, Iss 4 (2017)
Eight new adducts and derivatives have been synthesized and studied by infrared. Discrete, layered or infinite chain structures are suggested with an oxalate behaving as a monodentate, bidentate, monochelating or bichelating ligand, the environment a
Externí odkaz:
https://doaj.org/article/80201ee79d0546279cc320fe7ea5f885