<i>N</i>,<i>N</i>′-Bis(2,6-dichlorobenzylidene)hydrazine

Zheng, Pengwu; Qiu, Qiao-Mei; Lin, Yuyan; Liu, Ke-Fan

doi:10.1107/s1600536806012918

Cited by 11 publications

(10 citation statements)

References 5 publications

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“…For the use of 8-hydroxyquinoline and its derivatives as ligands in this area, see: Chen et al (2005); Park et al (2006); Karmakar et al (2007). For related structures, see: Xu et al (2002); Zhang et al (2005); Wen et al (2005); Wei et al (2004); Zheng, Li et al (2008); Zheng, Wu, Lu et al, (2006); Zheng (2006); Zheng, Qiu et al (2006); Zheng, Wu, Li et al (2007); Xie et al (2008); Chen & Li (2009). For comparative bond lengths, see: Allen et al (1987).…”

Section: Related Literaturementioning

confidence: 99%

(E)-N′-(5-Chloro-2-hydroxybenzylidene)-4-(8-quinolyloxy)butanohydrazide monohydrate

et al. 2009

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The crystal of the title Schiff base compound, C20H18ClN3O3·H2O, was twinned by a twofold rotation about (100). The asymmetric unit contains two crystallographically independent molecules with similar conformations, and two water molecules. The C=N—N angles of 115.7 (6) and 116.2 (6)° are significantly smaller than the ideal value of 120° expected for sp 2-hybridized N atoms and the dihedral angles between the benzene ring and quinoline ring system in the two molecules are 52.5 (7) and 53.9 (7)°. The molecules aggregate via C—Cl⋯π and π–π interactions [centroid–centroid distances = 3.696 (5)–3.892 (5) Å] and weak C—H⋯O interactions as parallel sheets, which are further linked by water molecules through N—H⋯O and O—H⋯O hydrogen bonds into a supramolecular two-dimensional network.

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Section: Related Literaturementioning

confidence: 99%

(E)-N′-(5-Chloro-2-hydroxybenzylidene)-4-(8-quinolyloxy)butanohydrazide monohydrate

et al. 2009

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“…For related literature, see: Glaser et al (1995); Kesslen et al (1999); Hunig et al (2000); Glidewell et al (2006); Xu & Hu (2007); Zheng et al (2006); Liu et al (2007).…”

Section: Related Literaturementioning

confidence: 99%

“…The photochromism in hydrazines arises from intramolecular H-atom transfer, together with a change in the π-electron system. To study the effect of intermolecular interactions, such as π•••π charge transfer or hydrogen bonding, on H-atom transfer processes, solid state structure analyses of a number of hydrazine compounds containing both a diamine linkage and N-N bonding have been reported in the literature (Liu et al, 2007;Xu & Hu, 2007;Zheng et al, 2006) We report here the synthesis and molecular structure of the title benzylidenehydrazine derivative(I).…”

Section: S1 Commentmentioning

confidence: 99%

2,2′-Diazinodimethylidyne)di-o-phenylene) dibenzoate

et al. 2008

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The title compound, C28H20N2O4, was synthesized by the reaction of 2-(hydrazonomethyl)phenyl benzoate with iodine. The molecule possesses a crystallographically imposed center of symmetry at the mid-point of the hydrazine N—N bond. The substituents at the ends of the C=N bonds adopt an E,E configuration. Intermolecular C—H⋯π(arene) hydrogen bonds and aromatic π–π stacking interactions [centroid–centroid distance 3.900 (1) Å] link the molecules into (100) sheets. In addition, there is an intermolecular C—H⋯O hydrogen-bond interaction.

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“…As shown in Figure 1 • is significantly smaller than the ideal value of 120 • expected for sp 2 -hybridized N atoms, probably owing to a consequence of repulsion between the nitrogen lone pairs and the neighboring N atom. [22] As shown in the packing of the title compound ( Figure 2 and Table 2 …”

Section: Crystal Structure Description Ofmentioning

confidence: 97%

Synthesis, Characterization, Crystal Structure, and Fluorescence Properties of a Schiff Base Containing Aliphatic Spacers

Zeng

et al. 2011

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

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Crystals of the Schiff base compound C 22 H 24 N 4 O 4 , 1, was obtained by the reaction of indole-3-carbaldehyde with 4-(quinolin-8-yloxy)butanohydrazide and recrystallization of the product from dimethylformamide. The compound 1 has been characterized by elemental analysis, infrared (IR), 1 H-nuclear magnetic resonance (NMR), fluorescence (FL) spectra, and x-ray single crystal and powder x-ray diffraction measurements. The conformation along the bond sequence linking the indole and quinoline rings, which have a mean interplanar dihedral angle of 80.9 (4) • , is trans-trans-(-)gauche-trans-trans-trans-trans. In the crystal structure, the intermolecular N-H···N hydrogen bond links the molecules into a zigzag one-dimensional (1-D) infinite chain structure. These chains are further aggregated via π. . .π interactions into parallel layers, resulting in a supramolecular two-dimensional fragment.

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N,N′-Bis(2,6-dichlorobenzylidene)hydrazine

Abstract: Key indicatorsSingle-crystal X-ray study T = 294 K Mean (C-C) = 0.004 Å R factor = 0.040 wR factor = 0.105 Data-to-parameter ratio = 16.6For details of how these key indicators were automatically derived from the article, see

Cited by 11 publications

References 5 publications

(E)-N′-(5-Chloro-2-hydroxybenzylidene)-4-(8-quinolyloxy)butanohydrazide monohydrate

(E)-N′-(5-Chloro-2-hydroxybenzylidene)-4-(8-quinolyloxy)butanohydrazide monohydrate

2,2′-Diazinodimethylidyne)di-o-phenylene) dibenzoate

Synthesis, Characterization, Crystal Structure, and Fluorescence Properties of a Schiff Base Containing Aliphatic Spacers

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