Dataset for "Intrinsic flexibility of the EMT zeolite framework under pressure"

A collection of the data used, and reported in the article "Intrinsic flexibility of the EMT zeolite framework under pressure". This includes high pressure powder X-ray diffraction data collected on the ID15B and ID27 beamlines at the European Synchrotron Radiation Facility (ESRF). It also includes the data from first-principles comparative DFT and lattice-dynamics calculations to calculate the lattice energy and vibrational entropy of the EMT and FAU frameworks. The purpose of this research was to gain a more coherent understanding as to the role of the organic additive 18-crown-6 ether to differentiate between synthesis of EMT and FAU-type zeolites. From the results, it is demonstrated that the 18-crown-6 ether molecule plays a crucial role in the free-energy of crystallisation, driving the framework assembly process towards the EMT topology.