Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Hazoor Ahmad Shad"'
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 9, Pp o696-o696 (2015)
In the title compound, C17H11Cl2NO, the dihedral angle between the planes of the naphthalene ring system and the benzene ring is 28.88 (11)°. The main twist in the molecule occurs about the N—Cb (b = benzene ring) bond, as indicated by the C=N—C
Externí odkaz:
https://doaj.org/article/62476a3fab5143a9a7b7c0b75a0ad22e
Autor:
Muhammad Salim, Muhammad Nawaz Tahir, Munawar Ali Munawar, Muhammad Shahid, Hazoor Ahmad Shad
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 6, Pp o416-o416 (2015)
In the title compound, C15H14ClNO, which is isostructural with its bromo analogue [Tahir et al. (2012). Acta Cryst., E68, o2730], the dihedral angle between the planes of the aromatic rings is 2.71 (7)° and an intramolecular O—H...N hydrogen bond
Externí odkaz:
https://doaj.org/article/d4374e68070f4bdc825362d326b85d28
Autor:
Muhammad Shahid, Muhammad Nawaz Tahir, Muhammad Salim, Munawar Ali Munawar, Hazoor Ahmad Shad
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 6, Pp o421-o422 (2015)
In the title zwitterionic compound, C20H15N3O3S2, the 2-hydroxynaphthalene-1-carbaldehyde group A, the anilinic unit B and the 1,3-thiazol-2(3H)-imine group C are each approximately planar with r.m.s. deviation of 0.0721, 0.0412 and 0.0125 Å, respec
Externí odkaz:
https://doaj.org/article/3e73da81df944b8a9691b6d3e173635f
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 2, Pp o137-o138 (2015)
In the title Schiff base, C13H9Cl2NO2, which arose from the condensation of 3,4-dichloroaniline with 2,3-dihydroxybenzaldehyde, the dihedral angle between the aromatic rings is 44.74 (13)°. Intramolecular O—H...O and O—H...N hydrogen bonds close
Externí odkaz:
https://doaj.org/article/40f2ab6ab503448999b6848061284a93
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 12, Pp o1254-o1255 (2014)
In the title hydrate, C11H11NO6·H2O, the organic molecule is approximately planar (r.m.s. deviation for the non-H atoms = 0.129 Å) and an intramolecular O—H...O hydrogen bond closes an S(6) ring. In the crystal, the benzoic acid group participate
Externí odkaz:
https://doaj.org/article/c94c16aaa68a40d9909ca73a5e6c9bf4
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 9, Pp o1008-o1008 (2014)
The title Schiff base, C14H11NO3, crystallizes as a zwitterion (i.e. proton transfer from the carboxylic acid group to the imine N atom). The dihedral angle between the aromatic rings is 19.59 (6)° and an intramolecular N—H...O hydrogen bond close
Externí odkaz:
https://doaj.org/article/754dd3e9b02d4df685990a56213258f5
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 7, Pp o1141-o1141 (2013)
In the title compound, C12H9BrN4O, the N′-methylidenepyrazine-2-carbohydrazide and 4-bromobenzene groups are oriented at a dihedral angle of 10.57 (7)°. The hydrazide N—H group is involved in intramolecular N—H...N interaction, which generates
Externí odkaz:
https://doaj.org/article/4a80d882cc374e43aa1f63151e0a553d
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 9, Pp o2687-o2687 (2012)
The title compound, C19H18N4O4S, exists as a zwitterion in the solid state, with nominal proton transfer from a phenol group to the imine N atom. The 2,3-dihydroxybenzaldehyde fragment is oriented at a dihedral angle of 35.51 (11)° to the adajacent
Externí odkaz:
https://doaj.org/article/e73ba38f773f480ab88129a8821afd5a
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 7, Pp o2072-o2072 (2012)
Two independent molecules are present in the asymmetric unit of the title compound, C12H10N2O, in which the 3-hydroxybenzaldehyde and the pyridin-3-amine units are almost planar [r.m.s. deviations of 0.0236 and 0.0116Å, respectively, in one molecule
Externí odkaz:
https://doaj.org/article/922609901cbb4c008e577997ac15a82b
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 7, Pp o2071-o2071 (2012)
In the title compound, C9H11N3O3, two molecules are present in the asymmetric unit in which the 4-hydroxy-3-methoxybenzaldehyde and hydrazinecarboxamide units are almost planar [with r.m.s. deviations 0.0212 and 0.0066 Å, respectively, in one molecu
Externí odkaz:
https://doaj.org/article/a3bfb8dc853243d5a3865e4fbb15115c