Abstract A series of quater-, quinque-, and sexithiophene derivatives bearing two cholesteryl groups at the α-position, which are abbreviated as 4 T-(chol) 2, 5 T-(chol) 2, and 6 T-(chol) 2, respectively, have been synthesized. It has been found that these oligothiophene derivatives act as excellent organogelators for various organic fluids and show the unique thermochromic behaviors through the sol–gel phase transition. It was shown on the basis ...