Processing on crystal growth, structure, thermal property, and nuclear magnetic resonance of organic-inorganic hybrid perovskite type [NH(CH)NH]ZnCl crystal.

Organic-inorganic hybrid compounds have recently gained significant attention in recent years due to their diverse applications. Herein, [NH(CH)NH]ZnCl crystals were grown, and their triclinic structure, phase transition temperature ( = 408 K), and high thermal stability ( = 584 K) was determined using X-ray diffraction (XRD), differential scanning calorimetry, and thermogravimetry measurements. By analyzing the chemical in response to temperature changes, we observed that the coordination geometry around H and C were highly symmetric below , whereas their symmetry was lowered above . The change of N-H⋯Cl hydrogen bond from XRD results and the change of N NMR chemical shifts was due to the changes to the coordination geometry of Cl around Zn in the ZnCl anion. The activation energy of H was three times greater than that of C, and this result indicates that the energy transfer of C was easier than those of H. We compared the results for [NH(CH)NH]ZnCl ( = 6) studied here with those for = 2, 3, 4, and 5 obtained from previous studies. The characteristics of the length of CH in the methylene chain are expected to be used for potential applications in the near future.