Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Alessandra C. Pinheiro"'
Publikováno v:
Crystals, Vol 14, Iss 4, p 330 (2024)
Hydrazonylsulfones such as Bt-NHNHSO2R and their iminotautomers have been studied as optical materials and for their biological potential. In this work, a structural study has been carried out on N-(1,3-benzothiazol-2-yl)-4-(halogenobenzenesulfonyl)-
Externí odkaz:
https://doaj.org/article/fb6c338c14bb4b368fd730426c1d6ed2
Autor:
Thais C. M. Noguiera, Alessandra C. Pinheiro, James L. Wardell, Marcus V. N. de Souza, Jordan P. Abberley, William T. A. Harrison
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 7, Pp 752-756 (2015)
The crystal structures of three methylated hydrazine carbamate derivatives prepared by multi-step syntheses from l-serine are presented, namely benzyl N-{(E)-1-[2-(4-cyanobenzylidene)-1-methylhydrazinyl]-3-hydroxy-1-oxopropan-2-yl}carbamate, C20H20N4
Externí odkaz:
https://doaj.org/article/02715f91529f43bc9cc2abe1089e88dd
Autor:
Maria C. S. Lourenço, Marcus V. N. de Souza, Alessandra C. Pinheiro, Marcelle de L. Ferreira, Raoni S. B. Gonçalves, Thais Cristina M. Nogueira, Mônica A. Peralta
Publikováno v:
ARKIVOC, Vol 2007, Iss 15, Pp 181-191 (2007)
Externí odkaz:
https://doaj.org/article/9c283b6192c64b04964ce3230e8d75e1
Autor:
Solange M. S. V. Wardell, Edward R. T. Tiekink, James L. Wardell, Marcus V. N. de Souza, Alessandra C. Pinheiro
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 10, Pp o2676-o2677 (2011)
The title urea derivative crystallizes as a monohydrate, C19H27N3O2·H2O. The central C3N grouping is almost planar (r.m.s. deviation = 0.0092 Å), and the amide and pyridine groups are substantially twisted out this plane [dihedral angles = 62.80 (1
Externí odkaz:
https://doaj.org/article/0d412352bd4d483383841ce1eeb9113e
Autor:
Solange M. S. V. Wardell, Edward R. T. Tiekink, Marcus V. N. de Souza, Alessandra C. Pinheiro, James L. Wardell
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o2155-o2156 (2011)
The organic molecule in the title dihydrate, C18H19N3O6·2H2O, adopts a twisted U-shape with the major twists evident about the chiral C atom [the C—N—C—C torsion angle is −88.2 (4) °] and about the oxygen–benzyl bond [C—O—C—C = 74.2
Externí odkaz:
https://doaj.org/article/683bcff8f3d542889792e333d69d06c0
Autor:
James L. Wardell, Marcus V. N. de Souza, Alessandra C. Pinheiro, Edward R. T. Tiekink, Solange M. S. V. Wardell
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o1888-o1889 (2011)
The molecule of the title compound, C16H23N3O6, is twisted about the chiral C atom with the dihedral angle formed between the amide residues being 76.9 (3)°. Overall, the molecule is curved with the terminal organic groups lying to the same side. Th
Externí odkaz:
https://doaj.org/article/7880d8282c344514a1f58e6c277b109e
Autor:
Edward R. T. Tiekink, Marcus V. N. de Souza, Alessandra C. Pinheiro, Solange M. S. V. Wardell, James L. Wardell
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 7, Pp o1866-o1867 (2011)
The molecule of the title compound, C18H19N3O5, adopts a curved arrangement with the terminal benzene rings lying to the same side. The hydroxylbenzene ring is close to coplanar with the adjacent hydrazine residue [dihedral angle = 11.14 (12)°], an
Externí odkaz:
https://doaj.org/article/5d462280d4bb4b2a909141a43569421c
Autor:
Alessandra C. Pinheiro, Marcus V. N. de Souza, Edward R. T. Tiekink, Solange M. S. V. Wardell, James L. Wardell
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 7, Pp o1805-o1806 (2011)
The molecule of the title compound, C16H23N3O5, is twisted about the chiral C atom, the dihedral angle formed between the amide residues being 79.6 (3)°. The conformation about the imine bond [1.278 (5) Å] is E. In the crystal, O—H...O and N—H.
Externí odkaz:
https://doaj.org/article/27e43f5681a74203b836309b1b7d434b
Autor:
Marcus V. N. de Souza, Alessandra C. Pinheiro, Edward R. T. Tiekink, Solange M. S. V. Wardell, James L. Wardell
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 7, Pp o1868-o1869 (2011)
The molecule of the title compound, C18H18ClN3O4, is twisted about the chiral C atom with the dihedral angle between the two amide residues being 87.8 (5)°, but, overall, it can be described as curved, with the benzene rings lying on the same side o
Externí odkaz:
https://doaj.org/article/c40d5f07cdcf49879403319068681845
Autor:
Edward R. T. Tiekink, Solange M. S. V. Wardell, Alessandra C. Pinheiro, Marcus V. N. de Souza, James L. Wardell
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 12, Pp o3253-o3254 (2010)
The shape of the title compound, C19H21N3O6, is curved with the conformation about the imine bond [1.291 (3) Å] being E. While the hydroxy-substituted benzene ring is almost coplanar with the hydrazinyl residue [N—N—C—C = 177.31 (18)°], an ob
Externí odkaz:
https://doaj.org/article/f93d59291eb240ad983418710e09dcf7