Are adenine strands helical H-aggregates?

Li Hong Hu, Yang Zhao, Fan Wang, Guan Hua Chen, Chensheng Ma, Wai Ming Kwok, David Lee Phillips

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)


On the basis of our quantum mechanical calculation, we propose that homogeneous single-stranded adenine bases (Ade-DNA) form helical H aggregates, and the photoexcited states can be described as Frenkel excitons. The calculated excitonic coupling between adjacent transition dipoles is in good agreement with the measured absorption spectrum of 20-base homogeneous adenine stacks that exhibits a blue shift of 2.6 nm relative to that of the monomeric species.
Original languageEnglish
Pages (from-to)11812-11816
Number of pages5
JournalJournal of Physical Chemistry B
Issue number40
Publication statusPublished - 11 Oct 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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