Synthesis and properties of B,N-bridged p-terphenyls

Chen, Dongmei; Qin, Q.; Sun, Zuo‐Bang; Peng, Qian; Zhao, Cui‐Hua

doi:10.1039/c3cc47141a

Cited by 35 publications

(33 citation statements)

References 40 publications

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“…The intracrystalline channels of the zeolite offer adequate space for the mobility of ethylene, propylene, hydrogen and ethane, but not for propane and hence propylene is not consumed in the reaction. [127] In the production of 1-butene (used as a copolymer), a calcium-containing zeolite has been used to selectively dehydrate n-butanol to 1-butene in mixtures with isobutanol without dehydrating the latter. [128] Here, the shape of the zeolite restricts the access of the isobutanol to the active site of calcium, where the dehydration occurs, resulting in the dehydration of the less branched n-butanol.…”

Section: Industrial Applications Of Substrateselective Catalysismentioning

confidence: 99%

Substrate‐Selective Catalysis

Lindbäck

Dawaigher

Wärnmark

2014

Chemistry A European J

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Substrate selectivity is an important output function for the validation of different enzyme models, catalytic cavity compounds, and reaction mechanisms as demonstrated in this review. In contrast to stereo-, regio-, and chemoselective catalysis, the field of substrate-selective catalysis is under-researched and has to date generated only a few, but important, industrial applications. This review points out the broad spectrum of different reaction types that have been investigated in substrate-selective catalysis. The present review is the first one covering substrate-selective catalysis and deals with reactions in which the substrates involved have the same reacting functionality and the catalysts is used in catalytic or in stoichiometric amounts. The review covers real substrate-selective catalysis, thus only including cases in which substrate-selective catalysis has been observed in competition between substrates.

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Section: Industrial Applications Of Substrateselective Catalysismentioning

confidence: 99%

Substrate‐Selective Catalysis

Lindbäck

Dawaigher

Wärnmark

2014

Chemistry A European J

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“…4, curve C). 39 The creation of these polymer grafts on ZrO 2 was corroborated by XPS measurement as shown in the Supporting information (Figs S3 − S6).…”

Section: Resultsmentioning

confidence: 57%

Polymer grafts on zirconia particles and their application as supports of hybrid catalyst

Yang

Zhang

et al. 2014

Polym. Int.

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A facile and efficient strategy for the preparation of polymer grafts on zirconia particles is developed by means of self-initiated photografting and photopolymerization. The UV-induced grafting polymerization is applicable to a variety of polymerizable monomers, allowing the direct formation of homogeneous and stable polymer coatings on zirconia particles without any initiator immobilization. The as-prepared polymer grafts are proved to be efficient supports for polyoxometalates as H 3 PW 12 O 40 can be uniformly and stably immobilized on poly(4-vinylpyridine) layer through electrostatic interaction. The resulted hybrid catalyst system, associating with high catalytic activity for a series of oxidation reactions such as amines, alkenes, alcohols, and sulfides, represents a novel and efficient system with a high catalyst loading capacity and stability upon reuse in further cycles.

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“…Generally, for propeller‐type AIEgens, the restriction of intramolecular rotation is widely accepted as their internal AIE mechanism . Thus, the different emission behaviors should be ascribed to the different rotational barriers between the TPCP core and the TPE segments . As 2,5‐BTPE‐TP is more conjugated than 2,5‐ m BTPE‐TP, its intramolecular rotation would be more restricted in pure THF solution.…”

Section: Resultsmentioning

confidence: 99%

Tetraphenylcyclopentadiene Derivatives: Aggregation‐Induced Emission, Adjustable Luminescence from Green to Blue, Efficient Undoped OLED Performance and Good Mechanochromic Properties

Ruan

Wang

et al. 2016

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Silole derivatives, the first reported and famous AIEgens, are a series of Si-containing conjugated rings with the σ*-π* conjugation, and this unique electronic structure imparts them high electron affinity and fast electron mobility, but not ideal blue luminogens due to their relatively long conjugation length. By replacing the Si atom with the C one, six new AIEgens without the σ*-π* conjugation effect are successfully synthesized based on a tetraphenylcyclopentadiene core. In addition to the sky-blue emission (λ = 492 nm) with L , η , and η up to 24 096 cd m , 6.80 cd A , and 4.07 lm W , respectively, the careful control of the conjugation degree by changing the linkage mode, results in the blue one (λ = 440 nm) with relatively good performance (L : 8721 cd m and η : 3.40 cd A ), indicating that the replacement of the Si atom by C one is an alternative design strategy to yield blue even deep-blue AIEgens with good device performance. Meanwhile, their reversible mechanochromic properties are realized with apparent fluorescence changes between deep-blue and green emissive colors, offering them additional promising applications in optoelectronic devices.

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Synthesis and properties of B,N-bridged p-terphenyls

Abstract: The efficient synthesis has been described to achieve a new class of ladder π-conjugated molecules, B,N-bridged p-terphenyls. The bridging B atom exhibits a more significant effect than the bridging N atom on photophysical properties.

Cited by 35 publications

References 40 publications

Substrate‐Selective Catalysis

Substrate‐Selective Catalysis

Polymer grafts on zirconia particles and their application as supports of hybrid catalyst

Tetraphenylcyclopentadiene Derivatives: Aggregation‐Induced Emission, Adjustable Luminescence from Green to Blue, Efficient Undoped OLED Performance and Good Mechanochromic Properties

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