Photoresponsive Supramolecular Organometallic Nanosheets Induced by PtII⋅⋅⋅PtII and C[BOND]H⋅⋅⋅π Interactions


  • This work was supported by the “Nanotechnology Research Program” of the University Development Fund of The University of Hong Kong, and the Hong Kong Research Grants Council (HKU 7011/07P and 7008/09P). Y.C. thanks The University of Hong Kong for a Postdoctoral Fellowship. Thanks go to Dr. Zong-Xiang Xu, Frankie Yu-Fee Chan, and Amy Sui-Ling Wong for assistance in device fabrication and TEM/SEM observations. We thank Dr. Nianyong Zhu for solving the crystal structure of complex 7.


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It's a flat world: Charge-neutral pincer-type cyclometalated platinum(II) aryl acetylides can be assembled into quasi-two-dimensional nanosheets through bilateral intermolecular noncovalent interactions (see picture). These nanosheets can be further self-organized into layered materials on a flat substrate and exhibit NIR phosphorescence and light-modulated conductivity.