Hydrogen-Bond-Assisted Helical Folding of Propeller-Shaped Molecules: Effects of Extended π-Conjugation on Chiral Selection, Conformational Stability, and Exciton Coupling
作者:Elizabeth A. Opsitnick、Xuan Jiang、Andrew N. Hollenbeck、Dongwhan Lee
DOI:10.1002/ejoc.201101351
日期:2012.2
UV/Vis and circulardichroism (CD) studies. Increasing the number of hydrogen bonds through additional substitution also enhanced the populations of the folded conformations in solution. In addition to introducing steric bias to control structural folding, linearly π-conjugated groups function as spatially well-defined chromophores that give rise to characteristic exciton-coupledcirculardichroism. Absolute