Angewandte Chemie - International Edition
Angewandte Chemie - International Edition
5 years ago

Photo-induced Pedalo-type Motion in an Azodicarboxamide-based Molecular Switch

Alberto Martinez-Cuezva, Wybren Jan Buma, Saeed Amirjalayer, Sander Woutersen, Jose Berná
Well-defined structural changes of molecular units that can be triggered by light are crucial for the development of photoactive functional materials. Here we report on a novel switch that has azodicarboxamide as its photo triggerable element. Time-resolved UV-pump/IR probe spectroscopy in combination with quantum chemical calculations shows that the azodicarboxamide functionality -in contrast to other azo-based chromophores- does not undergo trans-cis photoisomerization. Instead, a photo-induced pedalo-type motion occurs, which due to its volume-conserving properties enables to design functional molecular systems with controllable motion in a confined space.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201709666

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