Synthesis, photophysical and electrochemical properties of chiral and achiral thiadiazolophanes
One pot synthesis of chiral and achiral 2:2 oligomeric thiadiazolophane 1 and 3 and 3:3 oligomeric thiadiazolophane 2 and 4 with (S)-BINOL and methylene bis-naphthyl spacer unit has been achieved. The photophysical and electrochemical properties revealed higher degree of aggregation in 2:2 oligomor than 3:3 oligomer. Energy minimized calculations show that 3:3 oligomer has less heat of formation than 2:2 oligomer.