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Abstract
A homologous series of semifluorinated n-alkanes, F (CF2)10(CH2) m H, with 2 ≤ m ≤ 19 has been synthesized and their properties characterized using a polarising microscope, differential scanning calorimetry and X-ray diffraction. The compounds of 6 ≤ m ≤ 12 exhibit the smectic B phase. The molecules from m = 13 to 19 show only a melting endotherm in the DSC traces. Conformational structured are discussed on the basis of ab initio calculations.