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N,N′-Bis(3-hydr­oxy-4-methoxy­benzyl­idene)hydrazine

✍ Scribed by Duan, Xue-Min ;Zheng, Peng-Wu ;Zhou, Bin

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
255 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 16 H 16 N 2 O 4 , was synthesized by the reaction of 3-hydroxy-4-methoxybenzaldehyde with hydrazine hydrate. The molecule possesses a crystallographically imposed centre of symmetry. An intramolecular O-HÁ Á ÁO hydrogen bond promotes planarity of the molecular backbone. In the crystal structure, intermolecular O-HÁ Á ÁN and C-HÁ Á ÁO hydrogen bonds stabilize the crystal packing.

📜 SIMILAR VOLUMES

N′-(4-Hydr­oxy-3-methoxy­benzyl­idene)is
N′-(4-Hydr­oxy-3-methoxy­benzyl­idene)isonicotinohydrazide monohydrate
✍ Shi, Xue-Fang ;He, Lei ;Ma, Guo-Zhun ;Yuan, Cui-Cui 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 267 KB

The asymmetric unit of the title compound, C~14~H~13~N~3~O~3~·H~2~O, contains one molecule of __N__′-(4-hydroxy-3-methoxybenzylidene)isonicotinohydrazide and one solvent water molecule. The crystal packing is stabilized by O—H...N and O—H...O hydrogen bonds.

N′-(4-Hydr­oxy-3-methoxy­benzyl­idene)-2
N′-(4-Hydr­oxy-3-methoxy­benzyl­idene)-2-methoxy­benzohydrazide ethanol hemisolvate
✍ Jing, Zuo-Liang ;Zhao, Yan-Li ;Chen, Xin ;Yu, Ming 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 209 KB

In the title compound, C 16 H 16 N 2 O 4 Á0.5CH 3 CH 2 OH, the Schiff base is approximately planar. An intramolecular N-HÁ Á ÁO hydrogen bond stabilizes the molecular structure. The molecules are linked by O-HÁ Á ÁO hydrogen bonds to form a chain along the b axis.

3,4-Bis(2-hydr­oxy-3-methoxy­benzyl­iden
3,4-Bis(2-hydr­oxy-3-methoxy­benzyl­idene­amino)pyridine
✍ Bi, Wei-Yu ;Lü, Xing-Qiang ;Cai, Wen-Li ;Song, Ji-Rong ;Ng, Seik Weng 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 139 KB

In the title molecule, C 21 H 19 N 3 O 4 , the benzene rings of the two ortho 2-hydroxy-3-methoxybenzylideneamine substituents are twisted with respect to the central pyridine ring by 29.4 (1) and 41.4 (1) .