Borylated perylenediimide: Self-assembly, photophysics and sensing application

Pagidi Sudhakar, Kalluvettukuzhy K. Neena, Pakkirisamy Thilagar

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Triarylboryl appended perylenediimide (PDI-TAB) is designed and synthesized. The incorporation of triarylboranes (TABs) decreases self-aggregation and increases the solubility of PDI-TAB in common organic solvents. Fluorescence emission colors ranging from red, yellow and green are realized by judiciously modulating the concentration of PDI-TAB in solution. The morphology and dimensions of the self-assemblies formed by PDI-TAB can be controlled by changing the experimental conditions. For example, PDI-TAB forms fibers of finite length when bulk powder is dispersed in methanol; it shows flexible lengthy 1D fibers when dichloromethane solution of PDI-TAB is injected into methanol solvent. PXRD analysis indicates that the molecular organization remains the same in both cases. PDI-TAB functions as a selective fluorogenic sensor for toxic fluoride anions; the sensing mechanism is explained by using theoretical calculations.

Original languageEnglish
Pages (from-to)7218-7226
Number of pages9
JournalDalton Transactions
Volume48
Issue number21
DOIs
StatePublished - 28 May 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 The Royal Society of Chemistry.

Funding

P. T. and P. S. thank the Science and Engineering Research Board (SERB), New Delhi, India and IISc, Bangalore, for financial support and K. K. N. thanks IISc, Bangalore, India for a research fellowship.

FundersFunder number
Science and Engineering Research Board

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