"Helter-Skelter-Like" Perylene Polyisocyanopeptides

We report on a combined experimental and computational investigation on the synthesis and thorough characterization of the structure of perylene-functionalized polyisocyanides. Spectroscopic analyses and extensive molecular dynamics studies revealed a well defined 4, helix in which the perylene molecules form four "helter skelter-like" overlapping pathways along which excitons and electrons can rapidly migrate. The well-defined polymer scaffold stabilized by hydrogen bonding, to which the chromophores are attached, accounts for the precise architectural definition, and molecular stiffness observed for these molecules. Molecular-dynamics studies showed that the chirality present in these polymers is expressed in the formation of stable right-handed helices. The formation of chiral supramolecular structures is further supported by the measured and calculated bisignated Cotton effect. The structural definition of the chromophores aligned in one direction along the backbone is highlighted by the extremely efficient exciton migration rates and charge densities measured with Transient Absorption Spectroscopy.

Palermo, Vincenzo (author)
Finlayson, Chris E. (author)
Huang, Ya-Shih (author)
Otten, Matthijs B. L. (author)
Liscio, Andrea (author)
Trapani, Sara (author)
Gonzalez-Valls, Irene (author)
Brocorens, Patrick (author)
Cornelissen, Jeroen J. L. M. (author)
Peneva, Kalina (author)
Muellen, Klaus (author)
Spano, Frank C. (author)
Yartsev, ArkadyLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chph-ay (author)
Westenhoff, Sebastian (author)
Friend, Richard H. (author)
Beljonne, David (author)
Nolte, Roeland J. M. (author)
Samori, Paolo (author)
Rowan, Alan E. (author)
Kemisk fysikEnheten för fysikalisk och teoretisk kemi (creator_code:org_t)

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Atom and Molecul ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.