Folding-induced exciton coupling in homo- and heterodimers of merocyanine dyes
作者:David Bialas、Eva Kirchner、Frank Würthner
DOI:10.1039/c6cc00221h
日期:——
Two identical or different merocyanine dyes were tethered by a rigid diphenylacetylene spacer unit that enables the folding of the two dyes into co-facially [small pi]-stacked structures in solvents of low...
Bis(merocyanine) Hetero‐Folda‐Dimers: Evaluation of Exciton Coupling between Different Types of π‐Stacked Chromphores
作者:Eva Kirchner、David Bialas、Frank Würthner
DOI:10.1002/chem.201901757
日期:——
coupling between differenttypes of chromophores has been rarely investigated. Herein, a systematic study on the exciton coupling between merocyanine chromophores of differentconjugation length with varying excited state energies is presented. In this work well-defined hetero-dimer stacks were obtained upon folding of bis(merocyanine) dyes in nonpolar solvents. They show distinctly different absorption