256927-09-0Relevant articles and documents
Effect of the linkages on the self-assembly and photophysical properties of 4,7-diphenyl-2,1,3-benzothiadiazole-based luminescent polycatenars
Hu, Jinliang,Xiao, Yulong,Chang, Qing,Gao, Hongfei,Cheng, Xiaohong
, (2019/05/10)
Three series of 4,7-diphenyl-2,1,3-benzothiadiazole (DBTD)based polycatenars containing a central 4,7-diphenyl-2,1,3-benzothiadiazole moiety connected to 3,4,5-trialkoxyl benzene units at both ends through ether (-OCH2-), ester (-OOC-)or amide (-HNCO-)linkages were synthesized via Suzuki coupling reaction as key step. The polarities of the linkages had great effect on their self-assembly and photophycial properties. Both ether and amide compounds were mesogens, while the ester compounds were non-mesogens. The ether compounds displayed Colhex/p6mm phases, while the amide compound displayed two kinds of columnar phases i.e. columnar rectangular phase with p2mm and columnar hexagonal phase with p6mm lattices depending on temperature. The column phases could be aligned in electric field or under mechanical shearing. The ether and amide compounds showed the significant red-shifted maximum absorption and emission. In the solid and gel states, both ether and amide compounds were yellow luminescence, while ester compounds were green luminescence.
Rational Design of Supramolecular Dynamic Protein Assemblies by Using a Micelle-Assisted Activity-Based Protein-Labeling Technology
Sandanaraj, Britto S.,Reddy, Mullapudi Mohan,Bhandari, Pavankumar Janardhan,Kumar, Sugam,Aswal, Vinod K.
, p. 16085 - 16096 (2018/10/15)
The self-assembly of proteins into higher-order superstructures is ubiquitous in biological systems. Genetic methods comprising both computational and rational design strategies are emerging as powerful methods for the design of synthetic protein complexes with high accuracy and fidelity. Although useful, most of the reported protein complexes lack a dynamic behavior, which may limit their potential applications. On the contrary, protein engineering by using chemical strategies offers excellent possibilities for the design of protein complexes with stimuli-responsive functions and adaptive behavior. However, designs based on chemical strategies are not accurate and therefore, yield polydisperse samples that are difficult to characterize. Here, we describe simple design principles for the construction of protein complexes through a supramolecular chemical strategy. A micelle-assisted activity-based protein-labeling technology has been developed to synthesize libraries of facially amphiphilic synthetic proteins, which self-assemble to form protein complexes through hydrophobic interaction. The proposed methodology is amenable for the synthesis of protein complex libraries with molecular weights and dimensions comparable to naturally occurring protein cages. The designed protein complexes display a rich structural diversity, oligomeric states, sizes, and surface charges that can be engineered through the macromolecular design. The broad utility of this method is demonstrated by the design of most sophisticated stimuli-responsive systems that can be programmed to assemble/disassemble in a reversible/irreversible fashion by using the pH or light as trigger.
Coumarin-based emissive hexacatenars: synthesis, 2D and 3D self-assembly and photodimerization
Xiao, Yulong,Tan, Xiaoping,Xing, Wei,Zhao, Kai,Zhang, Bei,Cheng, Xiaohong
, p. 10782 - 10792 (2018/10/25)
The first examples of unsymmetric coumarin polycatenar liquid crystals consisting of a coumarin central core with 1,2,3-triazole dendritic wings on both sides were synthesized via click reaction. Their properties were investigated using POM, DSC, XRD, SEM
POLYCATENAR LIGANDS AND HYBRID NANOPARTICLES MADE THEREFROM
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, (2017/10/13)
Described herein are polycatenar ligand compounds and their use in the production of hybrid nanoparticles, typically nanocrystals. The present disclosure also relates to films containing the hybrid nanoparticles described herein and their use.
Polycatenar Ligand Control of the Synthesis and Self-Assembly of Colloidal Nanocrystals
Diroll, Benjamin T.,Jishkariani, Davit,Cargnello, Matteo,Murray, Christopher B.,Donnio, Bertrand
, p. 10508 - 10515 (2016/09/04)
Hydrophobic colloidal nanocrystals are typically synthesized and manipulated with commercially available ligands, and surface functionalization is therefore typically limited to a small number of molecules. Here, we report the use of polycatenar ligands d
PRODUCTION METHOD OF OLIGONUCLEOTIDE
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, (2012/12/13)
The problem of the present invention is provision of a method of producing an n+p-mer oligonucleotide efficiently in a high yield, which includes use of, as a starting material, an n-mer oligonucleotide wherein the 3′-terminal hydroxyl group is protected,
Effect of central linkages on mesophase behavior of imidazolium-based rod-like ionic liquid crystals
Cheng, Xiaohong,Su, Fawu,Huang, Rong,Gao, Hongfei,Prehm, Marko,Tschierske, Carsten
scheme or table, p. 2274 - 2285 (2012/06/30)
Two series of phenylbenzylether and benzanilide based rod-like imidazolium bromides and their nonionic precursors, the 1-phenyl-1H-imidazoles have been synthesized and the influence of the number and length of the alkyl chain(s) and the structure of the linking group in the aromatic core (-CH2O-, -COO-, -CONH-) on their mesophase self-assembly in ionic liquid crystalline phases were studied by POM, DSC and XRD. Upon decreasing the length of the N-terminal chain or by enlarging the number and length of the C-terminal chains, the sequence smectic (SmA)-hexagonal columnar (Colhex)-micellar cubic (CubI/Pm3n) was found for the ether based imidazolium salts; while only SmA and Colhex phases were observed for the related amides. The influence of the polarity of the central linkages, namely -CH 2O- and -CONH-, on the mesophase structure and stability is discussed and compared with related -COO- connected ILC.
BENZYL COMPOUND
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Paragraph 0214; 0215, (2013/03/26)
Provided is a protecting reagent which can undergo deprotection in high yield even under acidic conditions in organic synthesis, e.g., peptide synthesis, and which enables high-purity products to be obtained. The protecting reagent is a benzyl compound re
BENZYLIC COMPOUND
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, (2011/07/08)
The present invention provides a protecting reagent that can be removed in a high yield even under acidic conditions and can afford a resulting product at a high purity in an organic synthesis reaction such as peptide synthesis and the like. The inventive protecting reagent is particular benzylic compound having only one hydroxyl group substituted by an organic group having an aliphatic hydrocarbon group having a carbon number of not less than 14.
Design, synthesis, and self-assembly behavior of C3-symmetry discotic molecules via click chemistry
Ryu, Mi-Hee,Choi, Jin-Woo,Cho, Byoung-Ki
experimental part, p. 1806 - 1810 (2010/07/08)
We prepared a series of C3-symmetry discogens with three 1,2,3-triazoles and a central benzene ring by a copper-catalyzed "click reaction" between 1,3,5-triethynylbenzene and 3,4,5-trialkoxybenzyl azides. According to the differential scanning