Discrete Platinum(II) Metallacycles with Inner- and Outer-Modified9,10-Distyrylanthracene: Design, Self-Assembly, and Luminescence Properties

To completely unravel the relationship between structures andluminescence properties of inner- and outer-modified metallacycles, two rhombicmetallacyclesS1andS2with 9,10-distyrylanthracene (DSA) were constructedherein via the design of DSA moieties on the inside or outside of metallacycles.Similar building blocks of the two metallacycles led to the same emissionwavelengths in a dilute solution. In contrast, theirfluorescence emissions in theaggregation and solid states were significantly different and revealed interestingemission behaviors from structures with inner- and outer-modified design.Finally, based on their luminescence properties, a tunable solid-statefluorescenceemissive material was easily obtained by the mixing of two supramolecules indifferent ratios. This unique design suggested that the modified position offluorophores exerts a key impact on the adjustment of luminescence from adilute solution to the aggregated state and will be of great significance for thedevelopment of luminescent materials based on supramolecules

Automated summary

The relationship between structures and luminescence properties of inner- and outer-modified metallacycles were investigated. The position of the fluorophores in the structures had a significant impact on the luminescence behavior. A tunable solid-state fluorescence emissive material was easily obtained by mixing different supramolecules.