Issue 27, 2016

Strong electronic coupling and electron transfer in a Ce2@Ih-C80–H2P electron donor acceptor conjugate

Abstract

A newly designed electron donor–acceptor conjugate, namely Ce2@Ih-C80–H2P consisting of an endohedral dimetallofullerene Ce2@Ih-C80 and a free-base prophyrin (H2P), has been synthesized and systematically investigated. Basic characterization by means of NMR spectroscopy, steady-state absorption spectroscopy, and electrochemistry points to a folded configuration with sizeable interactions between Ce2@Ih-C80 and H2P. Complementary DFT optimization also results in the same conclusions. Time-resolved absorption spectroscopic investigations corroborate the formation of the (Ce2@Ih-C80-(H2P)˙+ radical ion pair state in non-polar as well as polar media. Overall, the modus operandi is an ultrafast through-space electron transfer enabled by the folded configuration in the ground and excited state.

Graphical abstract: Strong electronic coupling and electron transfer in a Ce2@Ih-C80–H2P electron donor acceptor conjugate

Supplementary files

Article information

Article type
Paper
Submitted
24 Apr 2016
Accepted
07 Jun 2016
First published
08 Jun 2016

Nanoscale, 2016,8, 13257-13262

Strong electronic coupling and electron transfer in a Ce2@Ih-C80–H2P electron donor acceptor conjugate

M. Rudolf, L. Feng, Z. Slanina, W. Wang, S. Nagase, T. Akasaka and D. M. Guldi, Nanoscale, 2016, 8, 13257 DOI: 10.1039/C6NR03324E

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