Gao Z, Wang Y, Zhou Y, Yuan B, Duan Z. Synthesis and properties of photoluminescent phosphorus-doped triptycenes.
Dalton Trans 2023;
52:11390-11394. [PMID:
37552089 DOI:
10.1039/d3dt02308g]
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Abstract
A new class of phosphorus-doped triptycenes was designed and synthesized via a Diels-Alder reaction between alkynylphosphonates and anthracene, followed by oxidative cyclization. The packing interaction and molecular alignment in the single crystals revealed that the weak C-H⋯π (2.825 Å) interaction guides the self-assembly of phosphindole oxide iptycenes. The photophysical and electrochemical properties of these photoluminescent phosphorus-doped iptycenes were characterized to gain a deeper understanding of their fluorescence tunability. The presence of functional groups on the phenyl ring of the P-doped fin and the chemical environment of the P atom both had an effect on the fluorescence emission.
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