2020
DOI: 10.1039/d0nj00588f
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Abstract: Molecular engineering of triphenylamine (TPA) units produced multi-stimuli-responsive solid state fluorescent materials.

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Cited by 66 publications
(45 citation statements)
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“…From another point of view, accenting the steric hindrance between the ortho phenyl and vinyl hydrogens, the compound can be considered as once by TPA and twice by CN substituted 2,5‐diphenyl‐1,4‐divinyl‐benzene (PVB), that is, TPA‐PVB‐(CN) 2 . The polymorphism of propeller‐like TPA‐containing fluorescent compounds is known [21] and is often used in stimuli‐responsive materials [22] . Side phenyl substitution of trans , trans ‐distyrylbenzene led to the formation of two polymorphs, showing either slipped‐stacked or uncommon cross‐stacked (X‐type) packing [23] .…”
Section: Introductionmentioning
confidence: 99%
“…From another point of view, accenting the steric hindrance between the ortho phenyl and vinyl hydrogens, the compound can be considered as once by TPA and twice by CN substituted 2,5‐diphenyl‐1,4‐divinyl‐benzene (PVB), that is, TPA‐PVB‐(CN) 2 . The polymorphism of propeller‐like TPA‐containing fluorescent compounds is known [21] and is often used in stimuli‐responsive materials [22] . Side phenyl substitution of trans , trans ‐distyrylbenzene led to the formation of two polymorphs, showing either slipped‐stacked or uncommon cross‐stacked (X‐type) packing [23] .…”
Section: Introductionmentioning
confidence: 99%
“…In general, the twisted molecular conformation adopts more planar structure upon applying mechanical pressure and partial/complete amorphous phase formation that leads to fluorescence tuning. [12][13][14][15][16][17][18][19] The coplanar conformation and parallel arrangement might not undergo further conformational change upon crushing and hence might not be showing fluorescence switching. Further comparison of MFC revealed unusual blue shifting of fluorescence by crushing of 1 and heating induced red shifting of fluorescence.…”
Section: Resultsmentioning
confidence: 99%
“…[9][10][11] Molecular structure and intermolecular interactions of organic molecules often played significant role on the molecular self-assembly and stimuli induced molecular packing alteration. [12][13][14][15][16][17][18][19] Non-planar flexible structure produced tunable fluorescent polymorphs via conformational freedom. [16][17][18][19] Moreover, the twisted nonplanar molecular conformation with weak intermolecular interactions exhibited drastic fluorescence colour changes due to transformation of molecular packing, phase, conformation and excited state (locally excited state to charge-transfer state, triplet to singlet state or monomer to excimer state) upon applying mechanical pressure.…”
Section: Introductionmentioning
confidence: 99%
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“…[21][22][23][24] The nonplanar molecular structure of TPA can induce MFC properties (i.e., facilitate rearrangement of the crystal packing structure upon the application of mechanical stimuli). [25][26][27][28] As a polycyclic aromatic hydrocarbon, Py is used widely as a classic flat molecule to facilitate a high quantum yield, long fluorescence lifetime, high thermal stability, and high charge carrier mobility. [29][30][31][32] The photophysical properties of Py depend on the substitution positions in the Py ring, including the active sites at the 1-, 3-, 6-, and 8-positions; [33][34][35][36][37][38] the K-region sites at the 4-, 5-, 9-, and 10-positions; [39][40][41] and the inactive sites at the 2-, and 7positions.…”
Section: Introductionmentioning
confidence: 99%