Unusual Temperature Effect on Induced Circular Dichroism of Charge-transfer Complex in Micelles

In sodium tetradecylsulfate micelles, a charge-transfer (CT) complex of amphiphilic [5]thiaheterohelicene with a chiral tetranitrofluorenone derivative induced intense circular dichroism (CD) absorption. The CD intensity decreased by up to about one fourth with a temperature decrease from 40 to 17 °C, and this temperature dependence was completely reversible.