37 research outputs found
N′-(3-Fluorobenzylidene)-4-hydroxy-3-methoxybenzohydrazide methanol monosolvate
In the title compound, C15H13FN2O3·CH3OH, the dihedral angle between the benzene rings of the benzohydrazone molecule is 5.3 (3)°. The C atom of the methoxy group is almost coplanar with its attached ring [deviation = 0.017 (2) Å]. The r.m.s. deviation of the 21 non-H atoms of the hydrazone molecule is 0.106 Å. In the crystal, the components are linked by Om—H⋯Oh, Nh—H⋯Om and Oh—H⋯Oh (m = methanol and h = hydrazone) hydrogen bonds, forming (001) layers
2-[(E)-(Dimethylamino)methyleneamino]-N-phenylbenzenesulfonamide. Corrigendum
Corrigendum to Acta Cryst. (2007), E63, o4446
N-(2-{[7-(2-Anilinoethoxy)-3,6-dibromonaphthalen-2-yl]oxy}ethyl)aniline
In the title compound, C26H24Br2N2O2, the central naphthalene system carries two Br atoms and two –CH2CH2NHC6H5 substituents. The phenyl rings of the latter residues are inclined at 74.17 (17) and 51.4 (2)° with respect to the naphthalene ring system. Each alkyl chain adopts a fully extended all-cis conformation with respect to the naphthalene and phenyl rings [N—C—C—O torsion angles = 68.6 (4) and 60.5 (4)°]. In the crystal, one of the N—H groups forms bifurcated N—H⋯(Br,O) hydrogen bonds, which link the molecules into inversion-related dimers. The centrosymmetric dimers are aggregated via pairs of C—H⋯π interactions into sheets parallel to (110)
7-Hydroxy-1,2,3,4-tetrahydroquinolin-2-one dihydrate
The asymmetric unit of the title compound, C9H9NO2·2H2O, comprises two independent organic molecules and four water molecules of crystallization. The heterocyclic rings are not planar: in one molecule, the C atom bearing the O atom and the adjacent methylene C atom are displaced by 0.320 (3) and 0.677 (3) Å, respectively, from the other eight atoms of the fused ring system. Equivalent values of 0.243 (3) and 0.659 (3) Å apply to the second molecule. In the crystal, the components are linked by N—H...O and O—H...O hydrogen bonds, forming a three-dimensional network
Synthesis of Triptycene-Derived Macrotricyclic Host Containing Two Dibenzo-[18]-crown-6 Moieties and Its Complexation with Paraquat Derivatives: Li<sup>+</sup>-Ion-Controlled Binding and Release of the Guests in the Complexes
A new triptycene-derived macrotricyclic host containing
two dibenzo-[18]-crown-6
moieties was synthesized and shown to form 1:1 complexes with paraquat
derivatives in solution, in which the guests all thread the central
cavity of the host. However, it was interestingly found that, depending
on the paraquat derivatives with different functional groups, the
host can form stable 1:1 or 1:2 complexes in different complexation
modes in the solid state, which is significantly different from those
of the macrotricyclic host containing two dibenzo-[24]-crown-8 moieties.
The formation of the complexes was also proved by the ESI MS and electrochemical
experiments. Moreover, it was found that the binding and release of
the guests in the complexes could be easily controlled by the addition
and removal of lithium ions
Synthesis of Triptycene-Derived Macrotricyclic Host Containing Two Dibenzo-[18]-crown-6 Moieties and Its Complexation with Paraquat Derivatives: Li<sup>+</sup>-Ion-Controlled Binding and Release of the Guests in the Complexes
A new triptycene-derived macrotricyclic host containing
two dibenzo-[18]-crown-6
moieties was synthesized and shown to form 1:1 complexes with paraquat
derivatives in solution, in which the guests all thread the central
cavity of the host. However, it was interestingly found that, depending
on the paraquat derivatives with different functional groups, the
host can form stable 1:1 or 1:2 complexes in different complexation
modes in the solid state, which is significantly different from those
of the macrotricyclic host containing two dibenzo-[24]-crown-8 moieties.
The formation of the complexes was also proved by the ESI MS and electrochemical
experiments. Moreover, it was found that the binding and release of
the guests in the complexes could be easily controlled by the addition
and removal of lithium ions
Synthesis of Triptycene-Derived Macrotricyclic Host Containing Two Dibenzo-[18]-crown-6 Moieties and Its Complexation with Paraquat Derivatives: Li<sup>+</sup>-Ion-Controlled Binding and Release of the Guests in the Complexes
A new triptycene-derived macrotricyclic host containing
two dibenzo-[18]-crown-6
moieties was synthesized and shown to form 1:1 complexes with paraquat
derivatives in solution, in which the guests all thread the central
cavity of the host. However, it was interestingly found that, depending
on the paraquat derivatives with different functional groups, the
host can form stable 1:1 or 1:2 complexes in different complexation
modes in the solid state, which is significantly different from those
of the macrotricyclic host containing two dibenzo-[24]-crown-8 moieties.
The formation of the complexes was also proved by the ESI MS and electrochemical
experiments. Moreover, it was found that the binding and release of
the guests in the complexes could be easily controlled by the addition
and removal of lithium ions