AI Article Synopsis
- Researchers developed a method to create organized nanostructures with varied luminescence using a double salt assembly of platinum(II) complexes.
- The process involves the combination of cationic and anionic complexes, leading to changes in light emission and nanostructure shape, transitioning from simple spheres to complex 3D forms.
- This self-assembly is driven by weak intermolecular forces and results in materials that can emit multiple colors, potentially useful for advanced optical applications like information encryption.
Article Abstract
Manipulation of multiemissive luminophores is meaningful for exploring luminescent materials. Herein, we report a soft double salt assembly strategy that could result in well-organized nanostructures and different luminescence based on multiple weak intermolecular interactions thanks to the existence of electrostatic attraction between the anionic and cationic platinum(II) complexes. The cationic complexes and can coassemble with anionic complex , respectively, and the emission switches from monomeric and excimeric emission to the triplet metal-metal-to-ligand charge transfer (MMLCT) along with morphology changes from 0-dimensional (0-D) nanospheres to 3-dimensional (3-D) nanostructures. It is demonstrated that an isodesmic growth mechanism is adopted during the spontaneous self-assembly process, and the relative negative Δ values make the anionic and cationic complex molecules prefer to form aggregates based on π-π stacking, Pt···Pt interactions, and electrostatic interactions. The coassembly strategy between anionic and cationic complexes endows them with multicolor luminescent and apparent color as optical materials for advanced information encryption.
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| http://dx.doi.org/10.1021/acs.inorgchem.4c01399 | DOI Listing |
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