Abstract
In this study, (C2H5NH3)2CdCl4 single crystals were grown, and their thermal properties were studied by the thermogravimetric analysis and differential scanning calorimetry. Phase transition temperature above room temperature was observed at 470 K. In addition, the cation dynamics in this crystal were investigated by 1H magic-angle spinning nuclear magnetic resonance (MAS NMR) and 13C cross-polarization (CP)/MAS NMR experiments. The Bloembergen–Purcell–Pound curves for 1H T1ρ and 13C T1ρ in C2H5NH3 cation exhibited minimum values, and these curves represent C2H5NH3 and C2H5 rotational motions. The activation energy for 1H in the C2H5NH3 cation is Ea = 22.63 kJ mol−1, whereas those for 13C in CH3 and CH2 are Ea = 18.05 and 19.14 kJ mol−1, respectively. Furthermore, the proton dynamics of C2H5NH3 undergo faster rotation than carbons. This implies that the molecular motion for 1H is enhanced at the C-end and N-end of an organic cation, whereas the molecular motion is not free at the main chain carbons of the organic cation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
