Two fluorinated compounds: 3-(2-fluoroctyloxy)-6-(4octyl-phenyl) pyridine (FOOPP) and 3-(fluornonyl)-6-(4-heptyloxy-phenyl)pyridine (FNHPP), synthesized by E. Merck Company in earlier 1990s, which show a pronounced increase of spontaneous polarization at the SmC*-hexatic Sm1* transition have been reinvestigated. In this contribution we shall present calorimetric, dielectric and electrooptic behavior of two perfluorinated compounds which display enhanced high spontaneous polarization in enantiotropic hexatic phases. Phase transitions have been studied by DSC, polarizing microscopy, X-ray diffraction, and reversal current method, and molecular and collective dynamics - by dielectric spectroscopy. Spontaneous polarization measurements vs. temperature show that the SmI* phase of FOOPP exhibits almost 3 times larger spontaneous polarization than the high temperature ferroelectric SmC* phase.