Organogelator based on long alkyl chain attached excimer precursor: Two channels of TICT, highly efficient and switchable luminescence

Ouyang, Mi; Zhuo, Chaozheng; Cao, Feng; Pan, Guoxiang; Lv, Chunyan; Yang, Shengchen; Li, Chengjian; Zhang, Cheng; Sun, Jingwei; Zhang, Yujian

doi:10.1016/j.dyepig.2020.108433

Cited by 12 publications

(3 citation statements)

References 43 publications

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“…Thus, the structure result of the obtained single crystal could be adopted to explain the in-depth mechanism of the optical properties of PBCM. As shown in Figure 6a, the dihedral angles between the ring of benzene and its neighboring two carbazole-9-carbonyl planes are + 26.64 [25]. In addition, PBCM shows a dense crystal packing with a large density of 1.420 g•cm −3 , which further protects materials from oxygen quenching by reducing the contact area.…”

Section: Single-crystal X-ray Structure Of Pbcmmentioning

confidence: 99%

“…Four molecules are tightly connected by abundant C-H…O hydrogen bonds, with distances of 2.340 and 2.609 Å between the carbonyl group in one molecule and the hydrogen in neighboring molecules. The existence of rich and powerful intermolecular interactions in the crystal is sufficient to provide a rigid environment to prohibit intramolecular vibration and rotation, which result in the strong fluorescence of PBCM in solids [25]. In addition, PBCM shows a dense crystal packing with a large density of 1.420 g•cm −3 , which further protects materials from oxygen quenching by reducing the contact area.…”

Section: Single-crystal X-ray Structure Of Pbcmmentioning

confidence: 99%

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Charge–Transfer Fluorescence and Room-Temperature Phosphorescence from a Bisamide-Based Derivative

Zhuo

Sun

et al. 2021

Crystals

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The development of organic luminescent materials with bimodal emissions of both fluorescence and room-temperature phosphorescent (RTP) remains a challenge. The investigation of the relationship between fluorescence and RTP performance is especially rare. In this work, we obtained an organic luminescent molecule, 1,4-phenylenebis((9H-carbazol-9-yl)methanone) (PBCM), which exhibits bimodal emissions of cyan fluorescence and yellow RTP in its crystalline state through adopting an electron donor–acceptor–donor (D–A–D) structure. The charge–transfer (CT) effects in the bimodal luminescent properties of PBCM, as well as the single-crystal structures and thermal properties, were investigated. It was found that the CT effect in the singlet states effectively reduces the ∆Est and promotes the ISC processes, resulting in an efficient phosphorescence of PBCM at room temperature. In addition, many strong intermolecular interactions are formed between the donor and acceptor parts of adjacent molecules, leading to the rigid configurations and compact packing of molecules in crystals, which was also confirmed to facilitate the efficient bimodal emissions of PBCM.

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Section: Single-crystal X-ray Structure Of Pbcmmentioning

confidence: 99%

Section: Single-crystal X-ray Structure Of Pbcmmentioning

confidence: 99%

Charge–Transfer Fluorescence and Room-Temperature Phosphorescence from a Bisamide-Based Derivative

Zhuo

Sun

et al. 2021

Crystals

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“…11,12 Organogels form hierarchical architectures by selfassembly 13,14 through H-bonding, π-π stacking, van der Waals and electrostatic interactions 15 and metal ion coordination 16 with a gelator that exhibits an AIE property, which is often termed gelation induced emission enhancement (GIEE). [17][18][19][20] The three-dimensional porous network structure of a gel with a high surface-to-volume ratio enhances the adsorption, accumulation and diffusion of gaseous molecules, which enhance the sensitivity of the response. [21][22][23] Various organogels have been used to detect volatile acids, amines and explosives in their gel as well as xerogel states.…”

Section: Introductionmentioning

confidence: 99%

Aggregation induced emission and volatile acid vapour sensing in acridine appended poly (aryl ether) based low molecular weight organogelator

Patra,

Mahato,

Prasad

2024

Org. Biomol. Chem.

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Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

Xie

et al. 2021

Advanced Materials

142

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Chromophores that exhibit aggregation‐induced emission (i.e., aggregation‐induced emission luminogens [AIEgens]) emit intense fluorescence in their aggregated states, but show negligible emission as discrete molecular species in solution due to the changes in restriction and freedom of intramolecular motions. As solvent‐swollen quasi‐solids with both a compact phase and a free space, gels enable manipulation of intramolecular motions. Thus, AIE‐active gels have attracted significant interest owing to their various distinctive properties and promising application potential. Herein, a comprehensive overview of AIE‐active gels is provided. The fabrication strategies employed are detailed, and the applications of AIEgens are summarized. In addition, the gel functions arising from the AIE moieties are revealed, along with their structure–property relationships. Furthermore, the applications of AIE‐active gels in diverse areas are illustrated. Finally, ongoing challenges and potential means to address them are discussed, along with future perspectives on AIE‐active gels, with the overall aim of inspiring research on novel materials and ideas.

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Organogelator based on long alkyl chain attached excimer precursor: Two channels of TICT, highly efficient and switchable luminescence

Cited by 12 publications

References 43 publications

Charge–Transfer Fluorescence and Room-Temperature Phosphorescence from a Bisamide-Based Derivative

Charge–Transfer Fluorescence and Room-Temperature Phosphorescence from a Bisamide-Based Derivative

Aggregation induced emission and volatile acid vapour sensing in acridine appended poly (aryl ether) based low molecular weight organogelator

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

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