Synthesis of Calixarene‐Linked Discotic Triphenylene

Yang, Fafu; Guo, Hongyu; Xie, Jianwei; Lin, Jianrong

doi:10.1002/ejoc.201100685

Cited by 48 publications

(12 citation statements)

References 50 publications

(8 reference statements)

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“…One way is calixarene as cores, that is calixarene bowlic column with two triphenylene units as ancillary lateral columns (Figure 17(a)). The symmetrical calix [4]arene-linked triphenylene dimer 88 (Figure 18) with a C 10 chain was such a case that exhibited the liquid-crystalline behaviour of a calixarene bowlic column with two triphenylene units as ancillary lateral columns [88]. Another way was triphenylene as cores, that is triphenylene column with calixarene units on ancillary lateral sides as shown in Figure 17(b).…”

Section: Calixarenes With Discotic Triphenylene Moietiesmentioning

confidence: 99%

Bowlics: history, advances and applications

Huang

Lam

Cheng

2017

Liquid Crystals Today

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There are three types of liquid crystals (LCs) in the world: rodics, discotics and bowlics, corresponding to one-, two-and three-dimensional molecules, respectively. The rodics were discovered by the Austrian, F. Reinitzer, in 1888 and is the material behind the LC display industry of $100 billion annually. The discotics were discovered by S. Chandrasekhar's team in India, in 1977. The third type, bowlics, was proposed by a Chinese, LIN Lei (Lui LAM), in 1982 while working at the Institute of Physics, CAS, Beijing. Distinguished from the rodic and the discotic, a bowlic molecule breaks the updown symmetry, and bowlic LCs are one of excellent candidates for switchable ferroelectrics with great potential applications in ultrahigh-density memory devices. The importance of strategic bowlic materials has recently attracted increasing attention of scientists from multiple disciplines and engineers from different backgrounds. In this review, the history of bowlics and their recent advances in molecular design, synthesis and applications are discussed.

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Section: Calixarenes With Discotic Triphenylene Moietiesmentioning

confidence: 99%

Bowlics: history, advances and applications

Huang

Lam

Cheng

2017

Liquid Crystals Today

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“…36,37 Menon et al introduced an aliphatic side chain inbuilt with different linking groups on the calixarene core. 38,39 Yang and his co-workers reported various calixarene-based liquid crystalline materials with different temperature range and thermal stability. 40−44 Among them, our research group also reported various calix[4]arene-based hexagonal columnar LCs with good photophysical behavior.…”

Section: Introductionmentioning

confidence: 99%

New Class of Supramolecular Bowl-Shaped Columnar Mesogens Derived from Thiacalix[4]arene Exhibiting Gelation and Organic Light-Emitting Diodes Applications

Sharma¹,

Sharma

Shah

et al. 2019

ACS Omega

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A new class of blue light-emitting bowl-shaped mesogens with the thiacalix[4]arene core appended with 1,3,4-thiadiazole derivatives having peripheral alkoxy side chains have been synthesized and well characterized. The liquid crystalline behavior of present synthesized derivatives was examined by optical polarizing microscopy, differential scanning calorimetry, and X-ray diffraction studies. It was observed that these thiacalix[4]arene derivatives were capable of stabilizing the observed Colh phase with a higher temperature range. The cone-shaped thiacalix[4]arene-based liquid crystals with peripheral alkoxy side chains able to pack into the columns with enriched intermolecular interactions and thermal behavior. All derivatives showed blue luminescence in solution, solid thin-film, and gelation state. The hexagonal columnar phase and emissive nature of thiadiazole-based thiacalixarene compounds having xerogel behavior make them favorable in the application of emissive electronic display devices. The electrochemical properties of these thiacalixarene-based compounds demonstrate the effect of alkyl side chain on the highest occupied molecular orbital–lowest unoccupied molecular orbital energy levels and also exhibited lower electron band gaps. The electroluminescence behavior of the compound 10c was examined as emissive layers in the fabrication of organic light-emitting diodes.

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“…reported calix[4]resorcinarene cholesterol based columnar liquid crystals having schiff‐base linking group . Later on, his group synthesised calixarene‐linked triphenylene and gallic‐calixarene liquid crystalline compounds . Recently, Marcos et al.…”

Section: Introductionmentioning

confidence: 99%

Mesomorphic Properties of Novel Supramolecular Calix[4]arene Schiff Base Ester Derivatives: Design and Biological Investigation

et al. 2017

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Two homologues series of liquid crystals based on calix[4]arene core have been prepared by the condensing of Schiff base derivatives of 4‐n‐alkoxy benzaldehyde and 4‐amino benzoic acid at the lower rim of tert‐butyl calix[4]arene. They have been designed to a correlation between the molecular structure and mesomorphism with reference to ‐CH=N‐ and ‐COO‐ linkage group. All these compounds were characterized by elemental analyses and spectroscopic techniques such as FTIR, 1H‐NMR, and 13C‐NMR. Mesomorphic behaviour of novel materials were studied by polarising optical microscope (POM), differential scanning calorimetry (DSC) and X‐ray diffraction measurements to confirm the presence of mesophase. Comp.C7‐I to C18‐I (Series‐1) and C4‐II to C18‐II (Series‐2) shows smectic and nematic mesophase enantiotropically manner. Comp.C3‐I, C7‐I, C6‐II, C7‐II, C12‐II subjected to in vitro antimicrobial screening against two gram ( +ve) bacteria ( S.aureus, S.Pyogenes), two gram (‐ve) bacteria (E.coli, P.aeruginosa) and three fungal strains (C.albicans, A.Niger, A.clavatus).

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Synthesis of Calixarene‐Linked Discotic Triphenylene

Cited by 48 publications

References 50 publications

Bowlics: history, advances and applications

Bowlics: history, advances and applications

New Class of Supramolecular Bowl-Shaped Columnar Mesogens Derived from Thiacalix[4]arene Exhibiting Gelation and Organic Light-Emitting Diodes Applications

Mesomorphic Properties of Novel Supramolecular Calix[4]arene Schiff Base Ester Derivatives: Design and Biological Investigation

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