Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Bintou Sessouma"'
AM1 and electron impact mass spectrometry study of the fragmentation of 4-acyl isochroman-1,3-diones
Autor:
Adama Saba, Pierre I. Guissou, Bayo Karifa, Leopold Kaboré, Félix B. Kini, Bintou Sessouma, Abdoulaye Djandé
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 26, Iss 2, Pp 311-318 (2012)
Recently, in electron impact mass spectrometry (EIMS), it has been found a good correlation between the fragmentation processes of coumarins and the electronic charges of the atoms of their skeleton. In this paper, the same analytical method has been
Externí odkaz:
https://doaj.org/article/14475791d86e43a1b3bdf33b24e95c21
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 2, Pp o537-o538 (2012)
In the title molecule, C20H18O4, the three methyl groups of the tert-butyl substituent show rotational disorder. Each methyl group is split over three positions, with refined site-occupation factors of 0.711 (4), 0.146 (3) and 0.144 (4). The benzene
Externí odkaz:
https://doaj.org/article/838b1cca1ad143e0afd0adaeb4a5579e
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 12, Pp o3349-o3349 (2011)
In the title compound, C16H9ClO4, the six-membered heterocyclic ring adopts a screw-boat conformation. The benzene rings are oriented to each other at a dihedral angle of 59.26 (9)°. The molecular structure exhibits a ring motif, viz. S(6), owing to
Externí odkaz:
https://doaj.org/article/4681c1287dc04401a5bd3dabc4bd7879
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 9, Pp o2269-o2270 (2011)
In the title molecule, C18H15NO4, the benzoate ring is oriented at a dihedral angle of 43.43 (6)° with respect to the planar [maximum deviation = 0.038 (2) Å] chromene ring. The crystal structure features R22(12) centrosymetric dimers formed via C
Externí odkaz:
https://doaj.org/article/49f03bfd56ad45768d33c73af30e91f3
Autor:
Lassané Tarpaga, Bintou Sessouma, Seydou Ouédraogo, Vincent Colliere, Mabinty Bayo-Bangoura, Catherine Amiens, Karifa Bayo
Publikováno v:
Chemistry Africa
Chemistry Africa, 2022, 5 (4), pp.811-820. ⟨10.1007/s42250-022-00400-w⟩
Chemistry Africa, 2022, 5 (4), pp.811-820. ⟨10.1007/s42250-022-00400-w⟩
International audience; This article reports a strategy to synthesize a hybrid species made of iron phthalocyanine (FePc) grafted to the surface of silver nanoparticles. The affinity between sulfur and silver on the one hand, and the aptitude of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::388f8ffb6542cab94699ef1e91795c8e
https://hal.science/hal-03822516
https://hal.science/hal-03822516
Publikováno v:
Acta Crystallographica Section E-Crystallographic Communications
Acta Crystallographica Section E-Crystallographic Communications, 2018, 74, pp.530--+. ⟨10.1107/S2056989018004188⟩
Acta crystallographica Section E : Crystallographic communications [2015-...]
Acta crystallographica Section E : Crystallographic communications [2015-..], 2018, 74, pp.530--+. ⟨10.1107/S2056989018004188⟩
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 4, Pp 530-534 (2018)
Acta Crystallographica Section E-Crystallographic Communications, 2018, 74, pp.530--+. ⟨10.1107/S2056989018004188⟩
Acta crystallographica Section E : Crystallographic communications [2015-...]
Acta crystallographica Section E : Crystallographic communications [2015-..], 2018, 74, pp.530--+. ⟨10.1107/S2056989018004188⟩
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 4, Pp 530-534 (2018)
WOS:000428789400024; In the title compound, C20H18O4, the benzoate ring is oriented at an acute angle of 33.10 (12)degrees with respect to the planar (r.m.s deviation = 0.016 angstrom) coumarin ring system. An intramolecular C-H center dot center dot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47ebb7f46c37ba431917546b413a5c06
https://hal-amu.archives-ouvertes.fr/hal-02091915
https://hal-amu.archives-ouvertes.fr/hal-02091915
Publikováno v:
American Journal of Heterocyclic Chemistry. 5:37
The title compound, (I), has been solved by direct methods and refined to a final R value of 0.038 for 1835 independent reflections. In the structure, the planar [r.m.s deviation = 0.014 A] chromen-2-one ring and the 7-propionate side chain are incli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fac93ac7bb2d2ab05878d36e38b868a
https://doi.org/10.11648/j.ajhc.20190502.13
https://doi.org/10.11648/j.ajhc.20190502.13
Autor:
Nathalie Piétri, Anne Coupeaud, Jean-Pierre Aycard, Isabelle Couturier-Tamburelli, Bintou Sessouma
Publikováno v:
Chemical Physics. 358:13-20
The structures and energies of the cyanoacetylene HC 3 N and diacetylene C 4 H 2 complexes in argon cryogenic matrix have been investigated using FTIR spectroscopy and ab initio calculations. We establish the structure of two 1:1 complexes. The first
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf9726d688534fe79d5f168c76a95510
https://doi.org/10.1016/j.chemphys.2008.11.020
https://doi.org/10.1016/j.chemphys.2008.11.020
Autor:
Isabelle Couturier-Tamburelli, Ming Wah Wong, Maurice Monnier, Curt Wentrup, Jean Pierre Aycard, Bintou Sessouma
Publikováno v:
The Journal of Physical Chemistry A. 106:4489-4497
The formation of molecular complexes (prereactive intermediates) between C3O2 and amines (ammonia, dimethylamine, trimethylamine, and 4-(dimethylamino)pyridine) as well as the subsequent transformation of the complexes into C3O2−amine zwitterions i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d317dd2866b9cc240b2b5c73dc5797d
https://doi.org/10.1021/jp0134190
https://doi.org/10.1021/jp0134190