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Photoinduced Pedalo-Type Motion in an Azodicarboxamide-Based Molecular Switch.

ABSTRACT: Well-defined structural changes of molecular units that can be triggered by light are crucial for the development of photoactive functional materials. Herein, 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 photoinduced pedalo-type motion occurs, which because of its volume-conserving properties enables the design of functional molecular systems with controllable motion in a confined space.

SUBMITTER: Amirjalayer S

PROVIDER: S-EPMC5814897 | biostudies-other | 2018 Feb

REPOSITORIES: biostudies-other

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Photoinduced Pedalo-Type Motion in an Azodicarboxamide-Based Molecular Switch.

Amirjalayer Saeed S Amirjalayer Saeed S Martinez-Cuezva Alberto A Berna Jose J Woutersen Sander S Buma Wybren Jan WJ

Angewandte Chemie (International ed. in English) 20171207 7

Well-defined structural changes of molecular units that can be triggered by light are crucial for the development of photoactive functional materials. Herein, 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 photoindu ...[more]

PMID: 29139183

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