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Updated: Jun 1, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
3-(1H-Tetra-zol-5-yl)pyridinium chloride
1Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
Abstract:
In the cation of the title compound, C(6)H(6)N(5) (+)·Cl(-), the pyridinium and tetra-zole rings are nearly coplanar, making a dihedral angle of 5.05 (12)°. The cations and anions are connected by inter-molecular N-H⋯Cl hydrogen bonds, forming a centrosymmetric [2 + 2] aggregate. The aggregates are stacked along the a axis.
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