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4,4′-Dibromo-2,2′-[ethyl­enedioxy­bis(nitrilo­methyl­idyne)]diphenol

✍ Scribed by Dong, Wen-Kui ;Feng, Jian-Hua

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
91 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 16 H 14 Br 2 N 2 O 4 , has been synthesized by the reaction of 1,2-bis(aminooxy)ethane with 5-bromo-2hydroxybenzaldehyde in ethanol. The molecule is centrosymmetric. Intramolecular O-HÁ Á ÁN hydrogen bonding is observed between hydroxy groups and oxime N atoms.

📜 SIMILAR VOLUMES

5,5′-Bis(diethylamino)-2,2′-[ethylenedio
5,5′-Bis(diethylamino)-2,2′-[ethylenedioxybis(nitrilomethylidyne)]diphenol
✍ Zhang, Yan-Ping ;Chen, Xiao ;Shi, Jun-Yan ;Xu, Li ;Dong, Wen-Kui 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 525 KB

The centrosymmetric title compound, C 24 H 34 N 4 O 4 , has been characterized structurally by 1 H NMR and X-ray crystallography. The two benzene rings are parallel to each other. The compound forms intramolecular hydrogen bonds, where the oxime group acts as a hydrogen-bond donor and the OH group a

2,2′-[1,1′-(Propane-1,3-di­yl)bis­(nitri
2,2′-[1,1′-(Propane-1,3-di­yl)bis­(nitrilo­ethyl­idyne)]diphenol
✍ Selvakumar, J. ;Varghese, Babu ;Raghunathan, V. S. ;Nagaraja, K. S. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 232 KB

The structure of the title compound, C 19 H 22 N 2 O 2 , shows two intramolecular O-HÁ Á ÁN hydrogen-bonding interactions. The packing is stabilized through van der Waals contacts and two C-HÁ Á Á interactions.

2,2′-{(Z)-Ethane-1,2-diyl­bis­[(Z)-o-phe
2,2′-{(Z)-Ethane-1,2-diyl­bis­[(Z)-o-phenyl­ene­nitrilo­methyl­idyne]}diphenol (EIEP)
✍ Sony, S. M. Malathy ;Charles, P. ;Ponnuswamy, M. N. ;Yathirajan, H. S. 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 282 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.057 wR factor = 0.199 Data-to-parameter ratio = 21.6 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

(1R,2R)-(+)-4,4′-Di-tert-butyl-2,2′-[1,2
(1R,2R)-(+)-4,4′-Di-tert-butyl-2,2′-[1,2-diphenyl­ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenol
✍ Korendovych, Ivan V. ;Makhlynets, Olga V. ;Buzak, Sara K. ;Flook, Margaret M. ;K 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 281 KB

The crystal structure of the title compound, C~36~H~40~N~2~O~2~, has been determined at 173 (2) K. The molecule has __C__ ~2~ symmetry and the asymmetric unit contains one half-molecule. An intramolecular O—H...N hydrogen bond is formed between the phenol OH group and the Schiff base N atom.