Luminescent polymeric hybrids formed by platinum(II) complexes and block copolymersf

摘要

The incorporation of platinum(n) complexes into block copolvmers leads to the formation of luminescent polymeric hybrids with hierarchical nanostructures from spherical, rodlike micelles to vesicles in solvents. Square-planar platinum(n) complexes with various ligands have received great attention in the past few decades due to their intriguing spectroscopic and luminescence properties, and thus have potential applications in the fields of chemical sensors and electro-optical devices. Among them, the platinum(II) complexes with N N N ligands ([Pt(N N N)X]~+/2+, X means a ligand) can exhibit modifiable Pt… Pt and/or π-π stacking interactions and thus controllable triplet emissions. The positive charges of the complexes allow an electrostatic attachment to negative species such as single-strand oligonucleotides, polyelectrolytes, and surfactants, forming supramolecular aggregates with modified luminescence behaviors.