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A new polymorph of 2′-(4-methoxybenzylidene)isonicotinohydrazide monohydrate

✍ Scribed by Lin, Min ;Liu, Shi-Xiong

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
982 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 14 H 13 N 3 O 2 ÁH 2 O, is a new orthorhombic polymorph of a structure reported previously [Jing, Fan, Yu, Chen & Deng (2005). Acta Cryst. E61, o3208-o3209]. The crystal structure is stabilized by a network of N-HÁ Á ÁO and O-HÁ Á ÁN hydrogen bonds linking three molecules to each water molecule, forming layers in the bc plane.

📜 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.

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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.

2′-(2-Hydroxy-4-methoxybenzylidene)nicot
2′-(2-Hydroxy-4-methoxybenzylidene)nicotinohydrazide monohydrate
✍ Mathew, Nancy ;Kuriakose, Mini ;Seena, E. B. ;Kurup, M. R. Prathapachandra 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 101 KB

In the crystal structure of the title compound, C 14 H 15 N 3 O 4 , the methoxyphenyl ring makes a dihedral angle of 2.27 (6) with the hydrazone group. The crystal packing is stabilized by N-HÁ Á ÁO and O-HÁ Á ÁO hydrogen bonds.