Dataset from the analysis of dielectric study for nematic liquid crystals that form enantiotropic ferroelectric nematic phase

This dataset contains raw data from the analyses published in the article entitled:. Karcz J., Rychłowicz N., Czarnecka M., Kocot A., Herman J., Kula P (2023). Enantiotropic ferroelectric nematic phase in a single compound. Chemical Communications 59, 14807-14810. The data include the raw dielectric spectra for ferro-nematogens JK3, and JK103 as a function of temperature and frequencies of the measuring field (frequencies from 10 to 1.3× 107 Hz). The files from dielectric measurements are in a file with the extension data. The individual file denotes the measurement at a particular temperature, the first column contains the frequencies, the second the real permittivity, and the third the imaginary part of permittivity. Temperatures in kelvins are given in the header of the column. The dataset JK103_IR contains results of polarised absorbance in the mid-infrared range for temperature ran (heating and cooling) cover the temperature range of nematic, ferroelectric nematic, twist-bent nematic and smectic phases.The attached files are labeled with the sample name and polarization and temperature.