Quantifying through-space charge transfer dynamics in π-coupled molecular systems

Arunabh Batra, Gregor Kladnik, Héctor Vázquez, Jeffrey S. Meisner, Luca Floreano, Colin Nuckolls, Dean Cvetko, Alberto Morgante () and Latha Venkataraman ()
Additional contact information
Arunabh Batra: Columbia University
Gregor Kladnik: University of Ljubljana
Héctor Vázquez: Columbia University
Jeffrey S. Meisner: Columbia University
Luca Floreano: CNR-IOM Laboratorio Nazionale TASC
Colin Nuckolls: Columbia University
Dean Cvetko: University of Ljubljana
Alberto Morgante: CNR-IOM Laboratorio Nazionale TASC
Latha Venkataraman: Columbia University

Nature Communications, 2012, vol. 3, issue 1, 1-7

Abstract: Abstract Understanding the role of intermolecular interaction on through-space charge transfer characteristics in π-stacked molecular systems is central to the rational design of electronic materials. However, a quantitative study of charge transfer in such systems is often difficult because of poor control over molecular morphology. Here we use the core-hole clock implementation of resonant photoemission spectroscopy to study the femtosecond charge-transfer dynamics in cyclophanes, which consist of two precisely stacked π-systems held together by aliphatic chains. We study two systems, [2,2]paracyclophane (22PCP) and [4,4]paracyclophane (44PCP), with inter-ring separations of 3.0 and 4.0 Å, respectively. We find that charge transfer across the π-coupled system of 44PCP is 20 times slower than in 22PCP. We attribute this difference to the decreased inter-ring electronic coupling in 44PCP. These measurements illustrate the use of core-hole clock spectroscopy as a general tool for quantifying through-space coupling in π-stacked systems.

Date: 2012
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms2083 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms2083

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms2083

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().