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N′-(4-Hydroxy­benzyl­idene)isonicotinohydrazide

✍ Scribed by Deng, Qi-Liang ;Yu, Ming ;Chen, Xin ;Diao, Chun-Hua ;Jing, Zuo-Liang ;Fan, Zhi

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

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✦ Synopsis

The title compound, C 13 H 11 N 3 O 2 , was prepared by the reaction of pyridine-4-carboxylic acid hydrazide and phydroxybenzaldehyde in ethanol. In the crystal structure, all non-H atoms are coplanar, with an r.m.s. deviation of 0.096 A ˚. N-HÁ Á ÁN, O-HÁ Á ÁN and O-HÁ Á ÁO intermolecular hydrogen bonds stabilize the structure.

📜 SIMILAR VOLUMES

2′-(4-Hydroxy­benzyl­idene)isonicotinohy
2′-(4-Hydroxy­benzyl­idene)isonicotinohydrazide monohydrate
✍ Tai, Xi-Shi ;Kong, Fan-Yuan ;Yin, Jie 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 111 KB

The bond lengths in the title compound, C 13 H 11 N 3 O 2 ÁH 2 O indicate that the organic molecule exists in the keto form. A network of O-HÁ Á ÁO, O-HÁ Á ÁN and N-HÁ Á ÁO hydrogen bonds helps to consolidate the crystal packing.

(E)-N′-[4-(2-Chloro­benz­yloxy)benzyl­id
(E)-N′-[4-(2-Chloro­benz­yloxy)benzyl­idene]isonicotinohydrazide
✍ Zhao, Yan-Li ;Zhang, Qiao-Zhen ;Chen, Xin ;Yu, Ming 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 139 KB

In the title compound, C 20 H 16 ClN 3 O 2 , the central benzene ring makes dihedral angles of 68.91 (5) and 60.23 (5) with the chlorobenzene ring and the pyridine ring, respectively. The packing is stabilized by intermolecular N-HÁ Á ÁO hydrogen bonds and weak, non-classical intermolecular C-HÁ Á Á