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Michael G. Walker, Dr. Veronica Gonzalez, Dr. Elena Chekmeneva and Dr. Jim A Thomas Temperature-Switched Binding of a RuII(dppz)/DNA Light-Switch Complex Angewandte Chemie International Edition 51

Version of Record online: 18 OCT 2012 | DOI: 10.1002/anie.201206260

Thumbnail image of graphical abstract

Cool to switch on: Although a Ru(dppz)-based complex binds to the grooves of duplex DNA at room temperature and above, it intercalates into duplex DNA at 10 °C, thus displaying a light-switch effect (see picture, dppz=dipyridylphenazine). Furthermore, once intercalated at low temperatures, emission does not disappear, even after the bound complex is warmed up to 35 °C for several hours.

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