Molecular motions of a tetraphenylethylene-derived AIEgen directly monitored through in situ variable temperature single crystal X-ray diffraction

Abstract

One organic functional group was introduced to distinguish the four phenyl ring of tetraphenylethylene, and the In situ temperature-dependent crystal structures were determined to exhibit the conformation changes of tert-butyl...

Solvent co-assembly in lead-free perovskite scintillators for stable and large-area X-ray imaging

“…where FWHM is the full width at half maximum of photon energy, ħu photon is the effective photon energy, k B is the We also summarized the equivalent isotropic displacement parameters ( Ūeq ) for each atom of the two crystals, which directly reected the thermal vibration of atoms. 35,36 As shown in Table S4 gradually broadens (Fig. 3f).…”

“…We also summarized the equivalent isotropic displacement parameters ( Ū eq ) for each atom of the two crystals, which directly reflected the thermal vibration of atoms. 35,36 As shown in Table S4,† the Ū eq of C, O, N, Mn and Br atoms in the (DABA) 2 MnBr 4 ·H 2 O crystals are all smaller than that of the (DABA) 2 MnBr 4 ·CH 3 CN crystals, reflecting the rigid crystal lattice of the (DABA) 2 MnBr 4 ·H 2 O crystals. Therefore, the lattice vibration of (DABA) 2 MnBr 4 ·H 2 O crystals is much more weak, and the corresponding non-radiative recombination is weak under high temperature conditions, resulting in less fluorescence intensity reduction of (DABA) 2 MnBr 4 ·H 2 O crystals.…”

Fabrication of AIE Polymer-Functionalized Reduced Graphene Oxide for Information Storage

“…Tetraphenylethylene (TPE) derivatives with the restriction of intramolecular rotations (RIR) as a working mechanism are considered iconic AIEgens. They have a wide range of practical applications in optoelectronic systems, including OLEDs, OFETs, self-assembly systems, and photovoltaics [27][28][29][30]. Recently, we synthesized a novel material poly[(9,9-dihexyl-9H-fluorene)-alt-(9-(4-(1,2,2-triphenylvinyl)phenyl)-9Hcarbazole)]-RGO (PFTC-g-RGO) in which the poly[(9,9-bis(6-azidohexyl)-9H-fluorene)-alt-(9-(4-(1,2,2-triphenylvinyl)phenyl)-9H-carbazole)] (PAFTC) polymer was used to covalently functionalize RGO.…”