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Formaldehyde 2,4-dinitro­phenyl­hydrazone

✍ Scribed by Tameem, Abdassalam Abdelhafiz ;Salhin, Abdussalam ;Saad, Bahruddin ;Rahman, Ismail Ab. ;Saleh, Muhammad Idiris ;Ng, Shea-Lin ;Fun, Hoong-Kun

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
171 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title compound, C 7 H 6 N 4 O 4 , the molecule is essentially planar and the nitro groups are nearly coplanar with the benzene ring. The crystal structure is stabilized by intermolecular C-HÁ Á ÁO, N-HÁ Á ÁO and C-HÁ Á ÁN interactions, as well as by short OÁ Á ÁO and OÁ Á ÁN contacts.

📜 SIMILAR VOLUMES

Benzophenone 2,4-dinitro­phenyl­hydrazon
Benzophenone 2,4-dinitro­phenyl­hydrazone
✍ Tameem, Abdassalam Abdelhafiz ;Salhin, Abdussalam ;Saad, Bahruddin ;Rahman, Isma 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 287 KB

In the title structure, C 19 H 14 N 4 O 4 , there are two crystallographically independent molecules in the asymmetric unit. The nitro groups are coplanar with the attached benzene rings. The crystal structure is stabilized by weak intermolecular C-HÁ Á ÁO andinteractions.

Acetaldehyde 2,4-dinitro­phenyl­hydrazon
Acetaldehyde 2,4-dinitro­phenyl­hydrazone
✍ Yin, Zhi-Gang ;Qian, Heng-Yu ;Jia, Jia ;Liu, Sheng-Min ;Feng, Ling-Qin 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 122 KB

The molecule of the title Schiff base compound, C 8 H 8 N 4 O 4 , is not planar, with a dihedral angle of 9.3 (2) between the N-N C-C plane and the benzene ring. There is an intramolecular N-HÁ Á ÁO hydrogen bond, and N-OÁ Á Á interactions, which help to stabilize the structure.

2,6-Dichloro­benzaldehyde 2,4-dinitro­ph
2,6-Dichloro­benzaldehyde 2,4-dinitro­phenyl­hydrazone
✍ Ge, Wen-Zhong ;Li, Feng 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 250 KB

In the title compound, C~13~H~8~Cl~2~N~4~O~4~, the dinitrophenylhydrazone and benzene ring planes are nearly coplanar, making a dihedral angle of 3.39 (9)°. There is an intramolecular N—H...O interaction and weak intermolecular C—H...O hydrogen-bonding interactions which stabilize the packing.