The compound 3-hydroxy-6-(4′-nitro)phenylazopyridine (1) was observed to incorporate several organic solvents of crystallisation, forming stable clathrates. These clathrates decompose upon heating and the host material is chemically transformed. Single crystal X-ray diffraction studies on the ethanol clathrate lead to a reasonable model for the host structure. But the guest molecules are severely disordered. Alternatively, the compound forms twinned crystals. The chemically closely related compound2 does not form clathrates.
Volume 134, 2022
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode