Self-healing, luminescent metallogelation driven by synergistic metallophilic and fluorine–fluorine interactions
Kolari, Kalle, Bulatov, Evgeny, Tatikonda, Rajendhraprasad, Bertula, Kia, Kalenius, Elina, Nonappa, Haukka, Matti. (2020). Self-healing, luminescent metallogelation driven by synergistic metallophilic and fluorine–fluorine interactions. Soft matter, 16(11), 2795-2802. https://doi.org/10.1039/C9SM02186H
Published inSoft matter
DisciplineEpäorgaaninen ja analyyttinen kemiaSoveltava kemiaOrgaaninen kemiaInorganic and Analytical ChemistryApplied ChemistryOrganic Chemistry
© The Royal Society of Chemistry 2020
Square planar platinum(ii) complexes are attractive building blocks for multifunctional soft materials due to their unique optoelectronic properties. However, for soft materials derived from synthetically simple discrete metal complexes, achieving a combination of optical properties, thermoresponsiveness and excellent mechanical properties is a major challenge. Here, we report the rapid self-recovery of luminescent metallogels derived from platinum(ii) complexes of perfluoroalkyl and alkyl derivatives of terpyridine ligands. Using single crystal X-ray diffraction studies, we show that the presence of synergistic platinum-platinum (PtPt) metallopolymerization and fluorine-fluorine (FF) interactions are the major driving forces in achieving hierarchical superstructures. The resulting bright red gels showed the presence of highly entangled three-dimensional networks and helical nanofibres with both (P and M) handedness. The gels recover up to 87% of their original storage modulus even after several cycles under oscillatory step-strain rheological measurements showing rapid self-healing. The luminescence properties, along with thermo- and mechanoresponsive gelation, provide the potential to utilize synthetically simple discrete complexes in advanced optical materials. ...
PublisherRoyal Society of Chemistry
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland
Funding program(s)Academy Project, AoF
Additional information about fundingKK and RT acknowledge the kind financial support from the Magnus Ehrnrooth Foundation, and Academy of Finland (M. H. Proj. no. 295581). Academy of Finland's Centre of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials (HYBER, 2014–2019) and Aalto University Nanomicroscopy Centre (Aalto-NMC) are acknowledged for the use of their facilities.
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