Related Experiment Video
Updated: May 21, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
1,2-Bis[4-(1H-imidazol-1-yl)benzyl-idene]hydrazine
Yue-Bao Jin1, Jie Li, Ying Zhang
1State Key Lab. Base of Novel Functional Materials and Preparation Science, Institute of Solid Materials Chemistry, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, People's Republic of China.
Abstract:
The title compound, C(20)H(16)N(6), is centrosymmetric with the mid-point of the N-N bond located on an inversion center. The imidazole ring is oriented at a dihedral angle of 28.03 (6)° with respect to the attached benzene ring. In the crystal, molecules are linked via C-H⋯N interactions.
Related Concept Videos
Diazonium Group Substitution: –OH and –H
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview
Nucleophilic Aromatic Substitution: Elimination–Addition
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...

