Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Alexander Briceño"'
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 3, Pp o680-o681 (2010)
The title compound, C23H22N2, was obtained using the three-component imino Diels–Alder reaction via a one-pot condensation between anilines, α-pyridinecarboxyaldehyde and indene using BF3·OEt2 as the catalyst. The molecular structure reveals the
Externí odkaz:
https://doaj.org/article/0687f85350ac46dbbb908a02bfc2d744
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 1, Pp o104-o104 (2009)
In the title compound, C12H12N2O2S, the molecules have a wing-like conformation, with a distance of 3.797 (2) Å between the centroids of the five- and six-membered rings. In the crystal structure, molecules are linked by N—H...O hydrogen bonds, fo
Externí odkaz:
https://doaj.org/article/97a7cf9fa1a84f1ea04810e61c940373
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 8, Pp o1372-o1372 (2008)
The asymmetric unit of the title compound, C17H16ClNO, contains two crystallographically independent molecules. These molecules are connected in an alternating fashion through N—H...O and C—H...O hydrogen bonds, generating one-dimensional chains
Externí odkaz:
https://doaj.org/article/1c83b7a9da0a42988481facfc40b5cbc
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 1, Pp o28-o29 (2008)
The title compound, C27H31N3, has E substitution at each imine double bond where the two N atoms adopt a trans–trans relationship. The benzene rings are twisted out of the mean plane of the pyridine ring; the mean planes of the aromatic groups are
Externí odkaz:
https://doaj.org/article/a545fa6d3db044fd8d03134e8dda8e47
Autor:
José Arévalo-Fester, Alexander Briceño
Publikováno v:
ACS Omega. 8:11233-11250
Autor:
Maura del Roció Muñoz Naranjo, María Humbelina Olalla García, Jaime Jesús Calvache Arguello, Miguel Andrés Morales Sánchez, Cesar Rogelio Carrasco Ruano, Jorge Alexander Briceño Carrasquel
Publikováno v:
ConcienciaDigital. 5:89-102
Introducción: En la provincia de Bolívar no existen estudios que determinen la presencia metales en los neonatos y/o en las madres, a pesar de existir factores predisponentes, la investigación denominada nivel de plomo en sangre y lecha materna y
Autor:
Pedro Silva, Laura Rodríguez, Julio Cáceres, Yesenia Pacheco, Joel Eduardo Vielma, Eleida Sosa, Reinaldo Atencio, Julia Bruno-Colmenárez, Alexander Briceño, Erick Limones
Publikováno v:
Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 77:99-114
Exploiting the kinetic domain provided by hydrothermal conditions, it was possible to isolate three transient metastable crystal structures, each bearing concomitant pairs of octamolybdate isomers, namely, α–β, γ–β or βcs–βgp stabilized b
Autor:
Alexander Briceño, Andreas Reiber, Leonardo C. Pacheco-Londoño, María L. Ospina-Castro, Nataly J. Galán-Freyle, Edward E. Ávila
Publikováno v:
CrystEngComm. 23:8198-8208
A series of eight novel 1D metal–organometallic networks of Cu(II)/Co(II)/Cd(II) and Zn(II) bearing the bidentate ligands 1,10′-phenanthroline (1,10′-phen) and 5,5′-dimethyl-2,2′-bipyridine (5,5′-diMe-2,2′-bipy) and terminal ligand 4-st
Autor:
Jorge Alexander Briceño Carrasquel, Mónica del Pilar Silva Ordoñez, Patricio Geovanny Valencia Pérez
Publikováno v:
Proceedings of the 8th International Research Congress REDU.
Publikováno v:
Industrial & Engineering Chemistry Research. 58:14761-14774
Novel controlled hydrophilic nonporous carbon-based sorbents from petroleum coke were obtained by using a hydrothermal oxidation treatment of shot coke with different H2O2 concentrations. The ability of resulting carbon materials for the selective ad