Category: 150-78-7

Ou, Guangchuan; Wang, Qiong; Zhou, Qiang; Wang, Xiaofeng published an article in 2021, the title of the article was Phenol derivatives as Co-crystallized templates to modulate trimesic-acid-based hydrogen-bonded organic molecular frameworks.COA of Formula: C8H10O2 And the article contains the following content:

Five host-guest trimesic-acid-based hydrogen-bonds framework compounds with different guests, namely [(TMA)4·(TMB)3] (1), [(TMA)2·(DMB)1.5] (2), [(TMA)6·(MP)] (3), [(TMA)·(EP)] (4) and [(TMA)·(PP)] (5) (TMA = trimesic acid, TMB = 1,3,5-trimethoxybenzene, DMB = 1,4- dimethoxybenzene, MP = 4-methoxyphenol, EP = 4-ethoxyphenol and PP = 4-propoxyphenol), were obtained through co-crystallization, and were characterized by elemental anal., IR spectroscopy anal., and thermogravimetric anal. The trimesic acid mols. comprise a hydrogen bonding six-membered cyclic host network that is found in a two-dimensional arrangement in compounds 1 and 2, and in a nine-fold interpenetrated three-dimensional structure in compound 3. In compounds 4 and 5, the trimesic acid and EP/PP mols. form a hydrogenbonded six-membered cyclic network, resulting in a one-dimensional chain structure through O-H…O hydrogen bonds. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).COA of Formula: C8H10O2

The Article related to phenol trimesic acid hydrogen bond organic mol framework crystallization, Placeholder for records without volume info and other aspects.COA of Formula: C8H10O2

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On January 15, 2021, Zhang, Yun-Fei; Wang, Zhong-Hui; Yao, Xiao-Qiang; Zhang, You-Ming; Wei, Tai-Bao; Yao, Hong; Lin, Qi published an article.HPLC of Formula: 150-78-7 The title of the article was Novel tripodal-pillar[5]arene-based chemical sensor for efficient detection and removal paraquat by synergistic effect. And the article contained the following:

Paraquat (PQ) plays a vital role in pesticide field, however, PQ always threatenhuman health owing to its high toxicity. Efficient detection and removal of PQ is an important and challenging task. Herein, a novel tripodal tri-pillar[5]arene-based sensor mol. (TP5) has been designed and synthesized. Interestingly, the designed tripodal tri-pillar[5]arene structure could offer a “synergistic effect” for the binding of PQ and achieve the fluorescence sensing. Through the “synergistic effect”, two adjacent pillar[5]arene groups in each TP5 mol. could bind one PQ mol. by multi-non-covalent interactions. Based on the “synergistic effect”, the sensor mol. TP5 has better sensing and removal efficiency toward PQ. The TP5 shows sensitivity fluorescence response for PQ and its lowest of detection limit (LOD) was 2.23 x 10-7 M. Meanwhile, TP5-based test paper has been prepared, which could serve as a convenient and efficient test kit to detect PQ in water and the concentration range is 10-6 M ∼ 10-1 M in practical situations. Furthermore, the TP5 displayed the excellent ability for PQ adsorption in water. For example, the TP5 was applied to absorb com. pesticide paraquat (PQ), the adsorption efficiency for PQ was up to 98.40 %. It is worth mentioning that, benefited from the “synergistic effect”, the TP5 shows better adsorption property than activated charcoal and most single pillar[n]arene based adsorption materials. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).HPLC of Formula: 150-78-7

The Article related to tripodal pillar arene paraquat chemosensor synergism adsorption removal, Placeholder for records without volume info and other aspects.HPLC of Formula: 150-78-7

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On November 5, 2021, Liao, Peisen; Feng, Xiying; Fang, Haobin; Yang, Zujin; Zhang, Jianyong published an article.Name: 1,4-Dimethoxybenzene The title of the article was Stabilized nanotube and nanofiber gel materials toward multifunctional adsorption. And the article contained the following:

Incorporation of multiple functional mols. with unique structures can endow gel materials with outstanding performance in adsorption. Herein, self-assembly of structurally simple trispyridine mols. of 1,3,5-tris(4-pyridylmethoxyl)benzene achieves supramol. gels with two different nanofiber or nanotube morphologies depending on difference in gelation temperature and cooling rate, and the self-assembled materials have been successfully stabilized though covalent capture to obtain stable nanofiber and nanotube materials with addnl. pillar[5]arene groups. Owing to the pos. charged pyridinium networks, host-guest interaction of pillar[5]arene and different morphologies, the materials show diverse multifunctional adsorption performance, including selective uptake for cationic dye, mol. shape recognition for dinitrobenzene isomers, and remarkable adsorption for iodine capture. The tubular material shows boosted iodine adsorption via synergistic effect, and the capacity for iodine reaches up to 2.29 g g-1 via vapor adsorption and 2.95 g g-1 in solution The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Name: 1,4-Dimethoxybenzene

The Article related to stabilized nanotube nanofiber gel material multifunctional adsorption, Placeholder for records without volume info and other aspects.Name: 1,4-Dimethoxybenzene

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On December 9, 2020, Qian, Yunyang; Li, Dandan; Han, Yulan; Jiang, Hai-Long published an article.Name: 1,4-Dimethoxybenzene The title of the article was Photocatalytic Molecular Oxygen Activation by Regulating Excitonic Effects in Covalent Organic Frameworks. And the article contained the following:

Excitonic effects caused by Coulomb interactions between electrons and holes play subtle and significant roles on photocatalysis, yet have been long ignored. Herein, porphyrinic covalent organic frameworks (COFs, specifically DhaTph-M), in the absence or presence of different metals in porphyrin centers, have been shown as ideal models to regulate excitonic effects. Remarkably, the incorporation of Zn2+ in the COF facilitates the conversion of singlet to triplet excitons, whereas the Ni2+ introduction promotes the dissociation of excitons to hot carriers under photoexcitation. Accordingly, the discriminative excitonic behavior of DhaTph-Zn and DhaTph-Ni enables the activation of O2 to 1O2 and O2•-, resp., under visible light irradiation, resulting in distinctly different activity and selectivity in photocatalytic terpinene oxidation Benefiting from these results, DhaTph-Ni exhibits excellent photocatalytic activity in O2•–engaged hydroxylation of boronic acid, while DhaTph-Zn possesses superior performance in 1O2-mediated selective oxidation of organic sulfides. This work provides in-depth insights into mol. oxygen activation and opens an avenue to the regulation of excitonic effects based on COFs. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Name: 1,4-Dimethoxybenzene

The Article related to photocatalytic mol oxygen activation regulating excitonic effect cof, Placeholder for records without volume info and other aspects.Name: 1,4-Dimethoxybenzene

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Hullar, Ted; Tran, Theo; Chen, Zekun; Bononi, Fernanda; Palmer, Oliver; Donadio, Davide; Anastasio, Cort published an article in 2022, the title of the article was Enhanced photodegradation of dimethoxybenzene isomers in/on ice compared to in aqueous solution.Related Products of 150-78-7 And the article contains the following content:

Photochem. reactions of contaminants in snow and ice can be important sinks for organic and inorganic compounds deposited onto snow from the atm. and sources for photoproducts released from snowpacks into the atm. Snow contaminants can be found in the bulk ice matrix, in internal liquid-like regions (LLRs), or in quasi-liquid layers (QLLs) at the air-ice interface, where they can readily exchange with the firn air. Some studies have reported that direct photochem. reactions occur faster in LLRs and QLLs than in aqueous solution, while others have found similar rates. Here, we measure the photodegradation rate constants for loss of the three dimethoxybenzene isomers under varying exptl. conditions, including in aqueous solution, in LLRs, and at the air-ice interface of nature-identical snow. Relative to aqueous solution, we find modest photodegradation enhancements (3- and 6-fold) in LLRs for two of the isomers and larger enhancements (15- to 30-fold) at the air-ice interface for all three isomers. We use computational modeling to assess the impact of light absorbance changes on photodegradation rate enhancements at the interface. We find small (2-5 nm) bathochromic (red) absorbance shifts at the interface relative to in solution, which increases light absorption, but this factor only accounts for less than 50% of the measured rate constant enhancements. The major factor responsible for photodegradation rate enhancements at the air-ice interface appears to be more efficient photodecay: estimated dimethoxybenzene quantum yields are 6- to 24-fold larger at the interface compared to in aqueous solution and account for the majority (51%-96%) of the observed enhancements. Using a hypothetical model compound with an assumed Gaussian-shaped absorbance peak, we find that a shift in the peak to higher or lower wavelengths can have a minor to substantial impact on photodecay rate constants, depending on the original location of the peak and the magnitude of the shift. Changes in other peak properties at the air-ice interface, such as peak width and height (i.e., molar absorption coefficient), can also impact rates of light absorption and direct photodecay. Our results suggest our current understanding of photodegradation processes underestimates the rate at which some compounds are broken down, as well as the release of photoproducts into the atm. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Related Products of 150-78-7

The Article related to dimethoxybenzene isomer ice snow quantum yield photochem degradation, Air Pollution and Industrial Hygiene: Other and other aspects.Related Products of 150-78-7

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On November 27, 2020, Chen, Jia-Yi; Li, Xing-Yu; Wu, Jie; Wu, Yongquan; Kuang, Gui-Chao published an article.SDS of cas: 150-78-7 The title of the article was Pillar[5]arene-BODIPY host-guest interaction induced fluorescence enhancement and lysosomes targetable bioimaging in dilute solution. And the article contained the following:

Supramol. complex by pillar[5]arenes and BODIPY dyad through host-guest interaction was developed and showed aggregation induced emission (AIE) property. 1H NMR titration and 2D NOESY NMR measurements were performed to evidence the host-guest interaction and the complex was formed by 1:1 M ratio. The fluorescence intensities of the BODIPY dyad were enhanced by increasing solution viscosity or and host-guest supramol. interaction with pillar[5]arenes. Preliminary living cell imaging results demonstrated the highly emissive complex showed lysosome targetable property. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).SDS of cas: 150-78-7

The Article related to pillar arene bodipy host guest fluorescence lysosome bioimaging, Placeholder for records without volume info and other aspects.SDS of cas: 150-78-7

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On December 5, 2020, Anito, Dejene Assefa; Wang, Tian-Xiong; Liu, Zhi-Wei; Ding, Xuesong; Han, Bao-Hang published an article.Name: 1,4-Dimethoxybenzene The title of the article was Iminodiacetic acid-functionalized porous polymer for removal of toxic metal ions from water. And the article contained the following:

The design of efficient adsorbent with abundant binding sites for heavy metal ions is crucial for developing innovative materials that will remove pollutant metal ions. The high uptake capacity, kinetics, and affinity towards the toxic metals are the key requirements that the materials under invesigation should accomplish. Here we report the synthesis of iminodiacetic acid-functionalized hypercrosslinked polymer (IDA-HCP) for purification of water polluted by toxic metal ions via coordination of carboxylate and amino active sites on the surface of porous polymer. The obtained porous polymer is stable under harsh conditions and the structural features on the polymer work together to help the removal of Pb(II) with 1138 mg g-1 uptake capacity. In the meanwhile, the IDA-HCP reveals reuseability and very promising capture efficiency not only for Pb2+, but also for Hg2+ and Cd2+ from a mixture of Pb2+, Hg2+, Cd2+, Co2+, Fe3+, Zn2+, Mg2+, and Na+ metal ions. This result gives us confidence that the polymer material can solve the pollution problem caused by various metal ions. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Name: 1,4-Dimethoxybenzene

The Article related to iminodiacetic acid porous polymer adsorption heavy metal uptake capacity, adsorption, heavy metals, iminodiacetic acid, porous polymer, uptake capacity, Placeholder for records without volume info and other aspects.Name: 1,4-Dimethoxybenzene

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On November 17, 2021, Zhai, Binbin; Huang, Rongrong; Tang, Jiaqi; Li, Min; Yang, Jinglun; Wang, Gang; Liu, Kaiqiang; Fang, Yu published an article.Category: ethers-buliding-blocks The title of the article was Film Nanoarchitectonics of Pillar[5]arene for High-Performance Fluorescent Sensing: a Proof-of-Concept Study. And the article contained the following:

Substrates play crucial roles for the sensing performances of fluorescent films owing to their effect on the formation of a fluorescent adlayer. However, no such film has been developed through synthesizing a substrate with a defined structure. We herein report a kind of self-standing, uniform, and thickness tunable pillar[5]arene-based nanofilms to serve as substrates for fabricating fluorescent sensing films. In comparison with a glass plate, the pillar[5]arene-based nanofilms can ensure spatial and electronic isolation of immobilized fluorophores and circumvent aggregation-caused quenching in a film state. For conceptual proof, a formic acid fluorescent sensing film was developed through simple loading of a fluorophore, a 4-azetidine-1,8-naphthalimide derivative of cholesterol (NA-Ch), onto the prepared nanofilm. Sensing performance studies demonstrated that the fluorescent film showed a sensitive, fast, and highly selective response to formic acid in air with a detection limit of lower than 2.8 mg m-3 and a response time of less than 3 s. Moreover, the sensing is fully reversible and highly repeatable. Further studies showed that the film sensor can be used for fast determination of methanol acidity via vapor sampling. Clearly, innovation of substrates with defined structures can be taken as an effective and efficient way to develop new sensing films via combination with known fluorophores. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Category: ethers-buliding-blocks

The Article related to film nanoarchitectonic pillararene fluorescent sensing, fluorescent film sensor, formic acid, nanofilm, pillar[5]arene, substrate, Placeholder for records without volume info and other aspects.Category: ethers-buliding-blocks

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On May 6, 2020, Li, Wei-Jian; Wang, Wei; Wang, Xu-Qing; Li, Mu; Ke, Yubin; Yao, Rui; Wen, Jin; Yin, Guang-Qiang; Jiang, Bo; Li, Xiaopeng; Yin, Panchao; Yang, Hai-Bo published an article.Computed Properties of 150-78-7 The title of the article was Daisy Chain Dendrimers: Integrated Mechanically Interlocked Molecules with Stimuli-Induced Dimension Modulation Feature. And the article contained the following:

The precise construction of the high-order mech. interlocked mols. (MIMs) with well-defined topol. arrangements of multiple mech. interlocked units has been a great challenge. Herein, we present the first successful preparation of a new family of daisy chain dendrimers, in which the individual [c2]daisy chain rotaxane units serve as the branches of dendrimer skeleton. In particular, the third-generation daisy chain dendrimer with 21 [c2]daisy chain rotaxane moieties was realized, which might be among the most complicated discrete high-order MIMs comprised of multiple [c2]daisy chain rotaxane units. Interestingly, such unique topol. arrangements of multiple stimuli-responsive [c2]daisy chain rotaxanes endowed the resultant daisy chain dendrimers controllable and reversible nanoscale dimension modulation through the collective and amplified extension/contraction of each [c2]daisy chain rotaxane branch upon the addition of acetate anions or DMSO mols. as external stimulus. Furthermore, on the basis of such an intriguing size switching feature of daisy chain dendrimers, dynamic composite polymer films were constructed through the incorporation of daisy chain dendrimers into polymer films, which could undergo fast, reversible, and controllable shape transformations when DMSO mols. were employed as stimulus. The successful merging of [c2]daisy chain rotaxanes and dendrimers described herein provides not only a brand-new type of high-order mech. interlocked systems with well-defined topol. arrangements of [c2]daisy chain rotaxanes, but also a successful and practical approach toward the construction of supramol. dynamic materials. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Computed Properties of 150-78-7

The Article related to daisy chain dendrimer rotaxane stimulus induced dimension modulation, pillararene platinum acetylide, Placeholder for records without volume info and other aspects.Computed Properties of 150-78-7

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Li, Fei; Zang, Mingsong; Liu, Shengda; Li, Xiumei; Jiang, Xiaojia; Tian, Ruizhen; Luo, Quan; Hou, Chunxi; Xu, Jiayun; Liu, Junqiu published an article in 2021, the title of the article was Difunctionalized pillar[5]arene-based polymer nanosheets for photodynamic therapy of Staphylococcus aureus infection.Recommanded Product: 150-78-7 And the article contains the following content:

Bacterial infections pose severe threats to global public health security. Developing antibacterial agents with both high efficiency and safety to handle this problem has become a top priority. Here, highly stable and effective polymer nanosheets have been constructed by the covalent co-assembly of a pillar[5]arene derivative and metalloporphyrin for photodynamic antibacterial therapy (PDAT). The monolayer nanosheets are strongly pos. charged and thus capable of binding with Staphylococcus aureus (SA) through electrostatic interactions. Addnl., the nanosheets can be activated to generate reactive oxygen species (ROS) under white-light irradiation, and exhibit satisfactory antibacterial performance towards SA. More importantly, cell viability assays demonstrate that the nanosheets show little to no cytotoxicity impact on mammalian cells even when the concentrations are much higher than those employed in the antibacterial studies. The above results suggest that the polymer nanosheets could be an effective antibacterial agent to overcome bacterial infections and hold a broad range of potential applications in real life. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Recommanded Product: 150-78-7

The Article related to staphylococcus infection umbilical vein endothelium polymer nanosheet photodynamic therapy, Placeholder for records without volume info and other aspects.Recommanded Product: 150-78-7

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