Supramolecular assembly of platinum-containing polyhedral oligomeric silsesquioxanes: an interplay of intermolecular interactions and a correlation between structural modifications and morphological transformations

Chemical Science
Ho-Leung Au-YeungVivian Wing-Wah Yam

Abstract

A series of alkynylplatinum(ii) terpyridine complexes functionalized with polyhedral oligomeric silsesquioxane (POSS) moieties has been demonstrated to exhibit drastic color changes and give various distinctive nanostructures with interesting multi-stage morphological transformations from spheres to nanoplates in response to solvent conditions through the interplay of various intermolecular interactions, including hydrophilic-hydrophilic, hydrophobic-hydrophobic, Pt···Pt and π-π stacking interactions. These supramolecular architectures can be systematically modified and controlled through the molecular design and the variation of solvent compositions. In particular, drastic changes in color in response to solvent polarity were observed through the incorporation of the charged moieties, representing a new class of potential candidates for functional materials with sensing or imaging capabilities. This class of complexes has been studied by 1H NMR spectroscopy, electron microscopy, UV-vis absorption and emission spectroscopy.

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Citations

Jul 15, 2017·Inorganic Chemistry·Junpei KuwabaraTakaki Kanbara
Apr 28, 2018·Physical Chemistry Chemical Physics : PCCP·Baofu QiaoRoss J Ellis
Mar 31, 2018·Chemistry : a European Journal·Kondalarao Kotturi, Eric Masson
Apr 25, 2020·Chemistry : a European Journal·Sourav ChakrabortyLuisa De Cola
Feb 13, 2018·Chemical Communications : Chem Comm·Shengjian KuangSimin Liu
Dec 14, 2018·Chemical Communications : Chem Comm·Jiangjun ChenFeng Wang
Mar 18, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Mónica Martínez-JunqueraJosé G Pichel
Oct 8, 2019·ACS Nano·Yuan XiongAndrey L Rogach
Aug 17, 2020·Journal of the American Chemical Society·Yiming LiXiaopeng Li
Feb 7, 2020·ACS Applied Materials & Interfaces·Kaka ZhangVivian Wing-Wah Yam

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Methods Mentioned

BETA
transmission
scanning
atomic force microscopy
AFM
electron microscopy

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