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Light-Controlled Interconversion between a Self-Assembled Triangle and a Rhombicuboctahedral Sphere

El mateix article està publicat en alemany a l’edició alemanya d’ ’Angewandte Chemie’ (ISSN 0044-8249, EISSN 1521-3757), 2016, vol. 128, núm. 1, p.456-460. DOI http://dx.doi.org/10.1002/ange.201508307

Stimuli-responsive structural reorganizations play an important role in biological processes, often in combination with kinetic control scenarios. In supramolecular mimics of such systems, light has been established as the perfect external trigger. Here, we report on the light-driven structural rearrangement of a small, self-assembled Pd3L6 ring based on photochromic dithienylethene (DTE) ligands into a rhombicuboctahedral Pd24L48 sphere measuring about 6.4 nm across. When the wavelength is changed, this interconversion can be fully reversed, as confirmed by NMR and UV/Vis spectroscopy as well as mass spectrometry. The sphere was visualized by AFM, TEM, and GISAXS measurements. Due to dissimilarities in the photoswitch conformations, the interconversion rates between the two assemblies are drastically different in the two directions

X.R. acknowledges financial support from INNPLANTA project INP-2011-0059-PCT- 420000-ACT1 and ICREA-AcadÀmia Award

Wiley-VCH Verlag

Director: Ministerio de Ciencia e Innovación (Espanya)
Autor: Han, Muxin
Luo, Yuansu
Damaschke, Bernd
Gómez Martín, Laura
Ribas Salamaña, Xavi
Anex, Jose
Peretzki, Patrick
Seibt, Michael
Clever, Guido H.
Data: 2016
Resum: El mateix article està publicat en alemany a l’edició alemanya d’ ’Angewandte Chemie’ (ISSN 0044-8249, EISSN 1521-3757), 2016, vol. 128, núm. 1, p.456-460. DOI http://dx.doi.org/10.1002/ange.201508307
Stimuli-responsive structural reorganizations play an important role in biological processes, often in combination with kinetic control scenarios. In supramolecular mimics of such systems, light has been established as the perfect external trigger. Here, we report on the light-driven structural rearrangement of a small, self-assembled Pd3L6 ring based on photochromic dithienylethene (DTE) ligands into a rhombicuboctahedral Pd24L48 sphere measuring about 6.4 nm across. When the wavelength is changed, this interconversion can be fully reversed, as confirmed by NMR and UV/Vis spectroscopy as well as mass spectrometry. The sphere was visualized by AFM, TEM, and GISAXS measurements. Due to dissimilarities in the photoswitch conformations, the interconversion rates between the two assemblies are drastically different in the two directions
X.R. acknowledges financial support from INNPLANTA project INP-2011-0059-PCT- 420000-ACT1 and ICREA-AcadÀmia Award
Format: application/pdf
Cita: info:eu-repo/semantics/reference/hdl/10256/12254
Accés al document: http://hdl.handle.net/10256/12128
Llenguatge: eng
Editor: Wiley-VCH Verlag
Col·lecció: info:eu-repo/semantics/altIdentifier/doi/10.1002/anie.201508307
info:eu-repo/semantics/altIdentifier/issn/1433-7851
info:eu-repo/semantics/altIdentifier/eissn/1521-3773
MICINN/PN 2011/INP-2011-0059-PCT-420000
Drets: Tots els drets reservats
Matèria: Nanopartícules
Nanoparticles
Química supramolecular
Supramolecular chemistry
Títol: Light-Controlled Interconversion between a Self-Assembled Triangle and a Rhombicuboctahedral Sphere
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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