Melting Point Elevation of Tetramethylsilane Confined in a Zn-Based Metal–Organic Framework

Abstract

Abstract The thermal anomaly and molecular motion of tetramethylsilane (TMS) confined in a metal–organic framework, [Zn4O(O2CC6H4CO2)3]n (IRMOF-1), have been examined by differential thermal analysis and solid-state wide-line 1H NMR. Endothermic peaks were observed at 198 and 227 K, which were attributed to the disordered intermediate phase and molten phase, respectively, employing the temperature dependence of 1H NMR line width. This result suggests an elevation of the melting point of TMS confined in IRMOF-1.