2016
DOI: 10.1002/ange.201605050
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Smart Organic Two‐Dimensional Materials Based on a Rational Combination of Non‐covalent Interactions

Abstract: Rational design of organic 2D (O2D) materials has made some progress,but it is still in its infancy.Aclass of selfassembling small molecules is presented that form nano/ microscale supramolecular 2D materials in aqueous media. A judicial combination of four different intermolecular interactions forms the basis for the robust formation of these ultrathin assemblies.These assemblies can be programmed to disassemble in response to as pecific protein and release its noncovalently bound guest molecules.Supportingin… Show more

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Cited by 18 publications
(6 citation statements)
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“…Noncovalent interactions, such as hydrogen bonding, π–π stacking, CH−π, and anion−π + /cation−π – interactions, play significant roles in broad areas such as supramolecular chemistry, structural biology, and material science. They are crucial to maintain the structures of life-related biomacromolecules like proteins and DNA/RNA and also show a determinate effect on the structures and properties of materials. In particular, noncovalent interactions exert great influence on the emission behaviors of luminescent materials. For example, traditional luminogens often suffered from the notorious aggregation-caused quenching (ACQ) effect in the aggregate state, mainly due to the π–π stacking of their molecules. , Recently, some luminogens have been found to exhibit a phenomenon of aggregation-induced emission (AIE) characteristic that is the exact opposite of the ACQ effect. These molecules are weakly emissive in solution but show efficient light emission in the aggregate state.…”
Section: Introductionmentioning
confidence: 99%
“…Noncovalent interactions, such as hydrogen bonding, π–π stacking, CH−π, and anion−π + /cation−π – interactions, play significant roles in broad areas such as supramolecular chemistry, structural biology, and material science. They are crucial to maintain the structures of life-related biomacromolecules like proteins and DNA/RNA and also show a determinate effect on the structures and properties of materials. In particular, noncovalent interactions exert great influence on the emission behaviors of luminescent materials. For example, traditional luminogens often suffered from the notorious aggregation-caused quenching (ACQ) effect in the aggregate state, mainly due to the π–π stacking of their molecules. , Recently, some luminogens have been found to exhibit a phenomenon of aggregation-induced emission (AIE) characteristic that is the exact opposite of the ACQ effect. These molecules are weakly emissive in solution but show efficient light emission in the aggregate state.…”
Section: Introductionmentioning
confidence: 99%
“…The fine structure showed that there 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 existed a number of concentric shale-like arrays on the surface of multilayer square structure, and the average thickness of an individual layer (1.68 AE 0.01 nm, Figure 1f) was slightly less than the outer diameter of a CB [8] ring (1.75 nm). [9] That was probably due to the tight stacking between layers. Moreover, the height of centre (ca.…”
mentioning
confidence: 99%
“…The precursor was obtained in a high yield by amidization reaction of 4,4′‐diaminoazobenzene with maleic anhydride in acetonitrile at room temperature. Since MAA containing two carboxylic groups, it easily reacts with organic base to form a bola amphiphile, which exhibits a strong tendency of self‐assembly due to the π–π stacking and hydrogen bonding interactions . Then, MAA was mixed with 1,1,3,3‐tetramethylguanidine (TMG) to in situ produce a bola‐amphiphilic monomer (MAA–TMG), which further to self‐assemble into supramolecular 2D sheets.…”
Section: Resultsmentioning
confidence: 99%