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- Title
Two-Step Mechanochromic Luminescence of N, N′-Bis-Boc-3,3′-di(pyren-1-yl)-2,2′-biindole.
- Authors
Ito, Suguru; Yamada, Takeshi; Asami, Masatoshi
- Abstract
Despite recent advances in the development of mechanochromic luminescent organic molecules, the mechano-responsive properties of intramolecularly stacked fluorophores are not well documented. Herein, the synthesis and emission properties of three N, N′-bis-Boc-3,3′-diaryl-2,2′-biindole (Boc= tert-butoxycarbonyl) derivatives as a new class of solid-state emissive fluorophores are described. For a 3,3′-dipyrenyl derivative in the crystalline state, partial intramolecular stacking of the dipyrenyl groups was observed, which results in a two-step mechanochromic luminescence from blue ( λem=462 nm) to green ( λem=516 nm) and yellow ( λem=535 nm).
- Subjects
INDOLE derivatives; PYRENE derivatives; CARBONYL compound derivatives; LUMINESCENCE; FLUOROPHORES; CRYSTAL structure
- Publication
ChemPlusChem, 2016, Vol 81, Issue 12, p1272
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.201600409