Jump to main content
Jump to site search

Issue 27, 2016
Previous Article Next Article

Crystallization induced green-yellow-orange emitters based on benzoylpyrenes

Author affiliations

Abstract

We report the synthesis, X-ray structures and photophysical properties of a few benzoylpyrene (BP) derivatives. Steric hindrance due to incremental benzoyl groups causes a systematic reduction in the orbital overlap (π–π) between vicinal pyrene units affording green-yellow-orange solid-state emitters. Crystallization induced emission could arise from: i) electronic (dipolar/excitonic) interactions, ii) arrested bond rotations, and/or iii) lack of solvation in crystalline 1–4BP (ΦFl ∼ 2–26%) when compared to that in solution (ΦFl ≤ 1%). Our earlier effort [Chem. Commun. 2014, 50, 8644] on progressive acylation, in contrast to benzoylation, results in a gradual increase in the π–π overlap between vicinal pyrenes.

Graphical abstract: Crystallization induced green-yellow-orange emitters based on benzoylpyrenes

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Mar 2016, accepted on 26 Apr 2016 and first published on 27 Apr 2016


Article type: Paper
DOI: 10.1039/C6CE00610H
Citation: CrystEngComm, 2016,18, 5089-5094
  •   Request permissions

    Crystallization induced green-yellow-orange emitters based on benzoylpyrenes

    S. K. Rajagopal, V. S. Reddy and M. Hariharan, CrystEngComm, 2016, 18, 5089
    DOI: 10.1039/C6CE00610H

Search articles by author

Spotlight

Advertisements