2019
DOI: 10.1002/chem.201901116
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Multiple Luminescence Responses towards Mechanical Stimulus and Photo‐Induction: The Key Role of the Stuck Packing Mode and Tunable Intermolecular Interactions

Abstract: Organic luminescence with different forms continues to be one of the most active research fields in science and technology. Herein, an ultra‐simple organic molecule (TPA‐B), which exhibits both mechanoluminescence (ML) and photo‐induced room‐temperature phosphorescence (RTP) in the crystalline state, provides an opportunity to reveal the internal mechanism of ML and the dynamic process of photo‐induced RTP in the same molecule. Through the detailed investigation of photophysical properties together with crysta… Show more

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Cited by 66 publications
(39 citation statements)
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“…Different colours of RTP including blue-purple, green, and orange have been achieved by employing several different phosphors. 18,24,25 In order to extend the RTP emission colour to red and even the NIR region, polymers composed of acrylamide and iodine-substituted Bodipy dyes are designed in this research work. Scheme S1-S3 † present the detailed synthetic route of the phosphorescent polymers.…”
Section: Resultsmentioning
confidence: 99%
See 2 more Smart Citations
“…Different colours of RTP including blue-purple, green, and orange have been achieved by employing several different phosphors. 18,24,25 In order to extend the RTP emission colour to red and even the NIR region, polymers composed of acrylamide and iodine-substituted Bodipy dyes are designed in this research work. Scheme S1-S3 † present the detailed synthetic route of the phosphorescent polymers.…”
Section: Resultsmentioning
confidence: 99%
“…[9][10][11][12] In particular, great achievements have been made in preparing RTP emitting materials in the amorphous state because crystallization usually needs strict growth conditions which might restrict their development. [13][14][15][16][17][18] Amorphous polymers have been veried to be rigid enough to effectively suppress nonradiative transition and promote RTP emission. [19][20][21][22][23][24][25][26] Various phosphors with different conjugated structures have been utilized to obtain RTP emission of different colours, most of which are excited by UV light and exhibit RTP emission in the visible region.…”
Section: Introductionmentioning
confidence: 99%
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“…On the basis of our previous work, [ 20 ] an organic compound of mTPA was designed and conveniently prepared through a two‐step synthetic route (Scheme S1, Supporting Information). The target molecule was characterized by 1 H and 13 C NMR spectroscopy, mass spectroscopy, elemental analysis, and high‐performance liquid chromatogram (Figures S1–S5, Supporting Information).…”
Section: Figurementioning
confidence: 99%
“…[4,9,[29][30][31][32][33][34] Thee xistence of strong intermolecular interactions,f or example, p-p interactions in the aggregated state of many RTPl uminogens,c an enforce intermolecular electronic coupling and reduce nonradiative transitions from T 1 to S 0 ,which contributes to more persistent RTP ( Figure 1a). [13,16,[30][31][32][35][36][37] Tr aditionally,t his goal is mainly achieved by decorating electron-withdrawing functional groups (EWGs) on the p system to relieve the p-p repulsion or/and constructing donor-acceptor (D-A)-type molecules to increase the intermolecular electrostatic interactions or dipole-dipole interactions between neighboring p systems ( Figure 1b and Chart S1). [23,30,32,[37][38][39][40] However,c oncise yet efficient molecular design tactics to modulate the p-p interactions and molecular packing of RTPl uminogens are still needed.…”
Section: Introductionmentioning
confidence: 99%