Related Experiment Video
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
6,6'-Dimethyl-2,2'-[oxalylbis(aza-nedi-yl)]dipyridinium dichloride acetonitrile solvate
Abstract:
In the crystal structure of the title compound, C(14)H(16)N(4)O(2) (2+)·2Cl(-)·CH(3)CN, weak inter-molecular N-H⋯Cl hydrogen bonds are found between the H atoms bound to the pyridine and amine N atoms and the chloride anions. The asymmetric unit consits of one half cationic mol-ecule which is located on a centre of inversion, one chloride anion in a general position and one half acetonitrile mol-ecule which is located on a twofold axis. Because of symmetry, the C-H hydrogens of the acetonitrile solvent mol-ecule are disordered over two orientations.
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