Visible-light-responsive self-assembled complexes: improved photoswitching properties by metal ion coordination

19 April 2022, Version 2
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

A photoswitchable ligand based on azobenzene is self-assembled with palladium(II) ions to form a [Pd2(E-L)4]4+ cage. Irradiation with 470 nm light results in the near quantitative switching to a monomeric species [Pd(Z-L)2]2+. The assembled structures improve the selectivity of photoswitching towards the metastable isomer and increase its thermal lifetime.

Keywords

photoswitch
self-assembly
metal-template
non-equilibrium
molecular cage
azobenzene

Supplementary materials

Title
Description
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Title
SI-2 NMR characterisation spectra for Ligand 1
Description
SI-2 NMR characterisation spectra for Ligand 1
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SI-3 Photoswitching data for Ligand 1
Description
SI-3 Photoswitching data for Ligand 1
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SI-4 NMR characterisation spectra for self-assembled products
Description
SI-4 NMR characterisation spectra for self-assembled products
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SI-5 Diffusion NMR Experiments
Description
SI-5 Diffusion NMR Experiments
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SI-6 ESI-MS data for self-assembled structures
Description
SI-6 ESI-MS data for self-assembled structures
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SI-7 UV-vis spectra of self-assembled species
Description
SI-7 UV-vis spectra of self-assembled species
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SI-8 Photoswitching of self-assembled species
Description
SI-8 Photoswitching of self-assembled species
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SI-9 Thermal relaxation of [Pd(Z-1)2](BF4)2
Description
SI-9 Thermal relaxation of [Pd(Z-1)2](BF4)2
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SI-10 Single cystral X-ray data
Description
SI-10 Single crystal X-ray data
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SI-2A NMR data for precursor dibromo-tetrafluoroazobenzene
Description
SI-2A NMR data for precursor dibromo-tetrafluoroazobenzene
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Supplementary weblinks

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