5LIG:
reference: NMR Structure of a Triangulenium-Based Long-Lived Fluorescence Probe Bound to a G-Quadruplex., Kotar A, Wang B, Shivalingam A, Gonzalez-Garcia J, Vilar R, Plavec J, Angew Chem Int Ed Engl. 2016 Aug 31. doi: 10.1002/anie.201606877. PMID: 27577037

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).