Donor/acceptor complex of triphenylene and trinitrotoluene on Au(111): a scanning tunneling microscopy study

摘要

The co-adsorption of trinitrotoluene (TNT), a typical Jt-electron acceptor, and triphenylene (TP), a typical 7t-electron donor, on a Au(lll) surface was investigated by in situ Electrochemical Scanning Tunneling Microscopy (ECSTM). DFT calculations proved that parallelly stacked and well-overlapped TP and TNT molecules can form Donor-Acceptor dyads through intermolecular π-π charge transfer, which agree well with the experimental results in the present work.