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Simple and Versatile Preparation of Luminescent Amphiphilic Platinum(II)‐containing Polystyrene Complexes With Transformable Nanostructures Assisted by Pt⋅⋅⋅Pt and π–π Interactions
Author(s) -
Cheng HeungKiu,
Chung Clive YikSham,
Zhang Kaka,
Yam Vivian WingWah
Publication year - 2017
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201700123
Subject(s) - terpyridine , platinum , luminescence , dehydrohalogenation , amphiphile , polystyrene , photochemistry , polymer chemistry , metal , chemistry , alkyne , ligand (biochemistry) , combinatorial chemistry , materials science , copolymer , organic chemistry , catalysis , polymer , biochemistry , receptor , optoelectronics
Platinum(II)‐containing polystyrene (PS) complexes have been synthesized by dehydrohalogenation of α‐alkyne‐PS and chloroplatinum(II) precursors with different functionalities on the terpyridine ligands. Through modulation of the hydrophilicity/hydrophobicity of the terpyridine ligands and hence the overall amphiphilicity of the complexes, the complexes can undergo self‐assembly into various superstructures with remarkable luminescence properties in different solution mixtures, as revealed by electron microscopy, UV/Vis absorption and emission spectroscopy. Pt⋅⋅⋅Pt and/or π–π interactions among the platinum(II) terpyridine moieties are found to play substantial roles in the stabilization of the superstructures and the turn‐on/off of the triplet metal–metal‐to‐ligand charge transfer ( 3 MMLCT) emission of the complexes.