Category: 623-24-5

Recommanded Product: 623-24-5In 2020 ,《Probing the Electrostatic Barrier of Tetrathiafulvalene Dications using a Tetra-stable Donor-Acceptor [2]Rotaxane》 was published in Chemistry – A European Journal. The article was written by Jensen, Morten; Kristensen, Rikke; Andersen, Sissel S.; Bendixen, Dan; Jeppesen, Jan O.. The article contains the following contents:

A tetra-stable donor-acceptor [2]rotaxane 1·PF6 has been synthesized. The dumbbell component is comprised of an oxyphenylene (OP), a tetrathiafulvalene (TTF), a monopyrrolo-TTF (MPTTF), and a hydroquinone (HQ) unit, which can act as recognition sites (stations) for the tetra-cationic cyclophane cyclobis(paraquat-p-phenylene) (CBPQT4+). The TTF and the MPTTF stations are located in the middle of the dumbbell component and are connected by a triethylene glycol (TEG) chain in such a way that the pyrrole moiety of the MPTTF station points toward the TTF station, while the TTF and MPTTF stations are flanked by the OP and HQ stations on their left hand side and right hand side, resp. The [2]rotaxane was characterized in solution by 1H NMR spectroscopy and cyclic voltammetry. The spectroscopic data revealed that the majority (77%) of the tetra-stable [2]rotaxane 14+ exist as the translational isomer 1·MPTTF4+ in which the CBPQT4+ ring encircles the MPTTF station. The electrochem. studies showed that CBPQT in 1·MPTTF4+ undergoes ring translation as result of electrostatic repulsion from the oxidized MPTTF unit. Following tetra-oxidation of 1·MPTTF4+, a high-energy state of 18+ was obtained (i.e., 1·TEG8+) in which the CBPQT4+ ring was located on the TEG linker connecting the di-oxidized TTF2+ and MPTTF2+ units. 1H NMR spectroscopy carried out in CD3CN at 298 K on a chem. oxidized sample of 1·MPTTF4+ revealed that the metastable state 1·TEG8+ is only short-lived with a lifetime of a few minutes and it was found that 70% of the pos. charged CBPQT4+ ring moved from 1·TEG8+ to the HQ station, while 30% moved to the much weaker OP station. These results clearly demonstrate that the CBPQT4+ ring can cross both an MPTTF2+ and a TTF2+ electrostatic barrier and that the free energy of activation required to cross MPTTF2+ is ca. 0.5 kcal mol-1 smaller as compared to TTF2+. The experimental part of the paper was very detailed, including the reaction process of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Recommanded Product: 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Recommanded Product: 623-24-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Journal of Solid State Chemistry included an article by Liu, Jian-Jun; Yu, Li-Mei; Han, Fu-Xu; Chen, Fu-Yu; Cheng, Fei-Xiang. Category: bromides-buliding-blocks. The article was titled 《A thioether-containing luminescent metal-organic framework for highly selective and sensitive detection of Ag(I) ion》. The information in the text is summarized as follows:

A stable three-dimensional coordination polymer, [Eu2(pbbp)(pbsd)3] (1) (H2pbsd = 2,2′-((1,4-phenylenebis(methylene))bis(sulfanediyl))dinicotinic acid, H2pbbp·2Cl = 1,1′-(1,4-phenylene-bis(methylene))-bis(3-carboxy pyridinium) dichloride), was prepared by the solvothermal reaction of Eu(NO3)3·6H2O, H2pbbp·2Cl and H2pbsd in mixed solvent of DMF and H2O, which was characterized by single-crystal X-ray diffraction, powder X-ray diffraction, IR spectroscopy, and thermogravimetric analyses. 1 exhibits a 3D 6-connected sqcl network decorated by uncoordinated Lewis basic thioether groups. In particular, 1 shows excellent application as luminescent sensor for sensing Ag+ ions in ethylene glycol solution with high sensitivity and selectivity based on luminescence quenching effect. The experimental part of the paper was very detailed, including the reaction process of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Category: bromides-buliding-blocks)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis. Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Dual-Functionalized Fluorescent Cationic Organic Network: Highly Efficient Detection and Removal of Dichromate from Water》 were Li, Zhi-Jun; Xue, Hua-Dong; Ma, Yun-Xiang; Zhang, Qi; Li, Yan-Chun; Xie, Miao; Qi, Hui-Li; Zheng, Xu-Dong. And the article was published in ACS Applied Materials & Interfaces in 2019. Formula: C8H8Br2 The author mentioned the following in the article:

Dichromate is one of widespread contaminants in wastewater, it has threatened the health of human and other organisms. Therefore, effective detection and removal of dichromate from water is of great significance. Herein, a tetraphenylethylene functionalized cationic organic network (CON-LDU2) was constructed via a facile quaternization reaction. CON-LDU2 was successfully integrated with both detection and removal functionalities towards dichromate. On the one hand, benefitting from the strong fluorescence, CON-LDU2 was employed as a chemosensor, it could efficiently and selectively probe Cr2O72- in water with “”turn-off”” fluorescent response. On the other hand, the cationic skeleton and free anions inside framework make CON-LDU2 an excellent adsorbent for Cr2O72-, it could capture Cr2O72- from water with rapid kinetic and high capacity. The kinetic constant for adsorption of Cr2O72- can reach up to 1.784 g mg-1 min-1, while the capacity is determined as 325 mg g-1. Furthermore, CON-LDU2 displayed good recyclability and can be reused at least for 5 cycles. Therefore, CON-LDU2 can serve as an ideal candidate not only in detection but also in removal of Cr2O72- in water medium. After reading the article, we found that the author used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Formula: C8H8Br2)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Organobromine chemicals are produced naturally by an array of biological and other chemical processes in our environment. Some of these compounds are identical to man-made organobromine compounds, such as methyl bromide, bromoform, and bromophenols, but many others are entirely new moleclar entities, often possessing extraordinary and important biological properties. Formula: C8H8Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Electric Literature of C8H8Br2In 2021 ,《Static Retention of Dynamic Chiral Arrangements for Achiral Shear Thinning Metal-Organic Colloids》 appeared in Chemistry – A European Journal. The author of the article were Huang, Jian-Cai; Xiao, Hui; Chen, Zhixin; Zheng, Wenxu; Huang, Chang-Cang; Wu, Shu-Ting; Xie, Zenghong; Zhuang, Naifeng. The article conveys some information:

Chiral compounds are known to be important not only because they are the fundamental components of living organisms, but also for their unique chiroptical properties. In recent years, scientists have fabricated several chiral organic supramol. aggregates by using chiral phys. fields, such as vortex flow. Herein, the relationship between dynamic chiroptical properties and rheol. nature is discussed, suggesting the shear thinning properties of non-Newtonian fluids might help colloidal particles adopt a chiral arrangement in vortices. Furthermore, the storage modulus of colloids could be increased by adding a linking agent, which successfully kept the dynamic chiroptical properties in the static state. Moreover, the salt effect on the host-guest interaction involved in the colloids was studied, the results suggested a significant enhancement of the transferred dynamic CD for the achiral guest mol. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Electric Literature of C8H8Br2)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Electric Literature of C8H8Br2 Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Formula: C8H8Br2In 2020 ,《Triblock Copolymer/Polyoxometalate Nanocomposite Electrolytes with Inverse Hexagonal Cylindrical Nanostructures》 was published in Macromolecular Rapid Communications. The article was written by Zhai, Liang; Chai, Shengchao; Wang, Gang; Zhang, Wei; He, Haibo; Li, Haolong. The article contains the following contents:

The primary issue of polymer electrolytes is to achieve high ion conductivity while retaining mech. properties. A nanocomposite electrolyte with the inverse hexagonal cylindrical phase (three-dimensionally continuous domains for ion conduction and embedded domains for mech. support) is prepared through the electrostatic self-assembly of a polyoxometalate (H3PW12O40, PW) and a triblock copolymer poly(N-vinyl pyrrolidone)-block-polystyrene-block-poly(N-vinyl pyrrolidone) (PSP). The cylindrical nanocomposite exhibits a conductivity of 1.32 mS cm-1 and a storage modulus of 4.6 × 107 Pa at room temperature These two values are higher than those of pristine PSP by two orders of magnitudes and a factor of six, resp. PW clusters are used as multifunctional nano-additives (morphol. inducer, proton conductor, and nano-enhancer) and their incorporation achieves the simultaneous improvement in both conductive and mech. performance. In the experimental materials used by the author, we found 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Formula: C8H8Br2)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. In contrast, terrestrial plants account only for a few bromine-containing compounds.Formula: C8H8Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,ACS Applied Materials & Interfaces included an article by Huang, Haijun; Fu, Yan; Wang, Xinchao; Gao, Yichun; Wang, Zhenqiang; Zhang, Shengtao; Li, Hongru; Gao, Fang; Chen, Lingyun. Recommanded Product: 1,4-Bis(bromomethyl)benzene. The article was titled 《Nano- to Micro-Self-Aggregates of New Bisimidazole-Based Copoly(ionic liquid)s for Protecting Copper in Aqueous Sulfuric Acid Solution》. The information in the text is summarized as follows:

This study presents the synthesis of two new bisimidazole-based copoly(ionic liquid)s (PILs) through multi-step preparation routes. It is shown that the target PILs can display orderly mol. stacking, and nano to micro self-aggregates are yielded in aqueous sulfuric acid solution, which are characterized by various technologies including the SEM, the transmission electron microscopy (TEM) and the dynamic light scattering (DLS). The studied PILs aggregates show strong chem. adsorption onto the copper surfaces demonstrated by the Fourier transform IR spectroscopy (FT-IR), the Raman spectroscopy as well as the XPS. Furthermore, the anti-corrosion performance for studied PILs aggregates is shown by the polarization curves and the impedance spectroscopy. As a result, the target PILs aggregates show great corrosion inhibition performance to copper in aggressive acid medium. The results came from multiple reactions, including the reaction of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Recommanded Product: 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis. Recommanded Product: 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Ultra-Low Power Electrochromic Heat Shutters Through Tailoring Diffusion-Controlled Behaviors》 was written by In, Ye Ryeong; Kim, Yong Min; Lee, Yujeong; Choi, Won Young; Kim, Se Hyun; Lee, Seung Woo; Moon, Hong Chul. Category: bromides-buliding-blocks And the article was included in ACS Applied Materials & Interfaces in 2020. The article conveys some information:

In this study, we propose low power consumption, all-in-one type electrochromic devices (ECDs) for effective heat shutters. Considering diffusion-controlled device operation, polymeric viologens (poly-viologens) are synthesized to lower the diffusivity of EC chromophores and to minimize self-bleaching. In comparison with devices based on mono-viologens corresponding to the monomer of poly-viologens, poly-viologen-containing ECDs exhibit advantages of lower coloration voltage (ca, -0.55 V) and higher coloration/bleaching cyclic stability (>1500 cycles). In particular, poly-viologen ECDs show remarkably reduced self-bleaching as designed, resulting in extremely low power consumption (~8.3μW/cm2) to maintain the colored state. Moreover, we successfully demonstrate solar heat shutters that suppress the increment of indoor temperature by taking the advantage of low-power operation and near-IR absorption of the colored poly-viologen-based ECDs. Overall, these results imply that the control of the diffusivity of EC chromophores is an effective methodol. for achieving single-layered, low-power electrochem. heat shutters that can save indoor cooling energy when applied as smart windows for buildings or vehicles.1,4-Bis(bromomethyl)benzene(cas: 623-24-5Category: bromides-buliding-blocks) was used in this study.

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Organobromine chemicals are produced naturally by an array of biological and other chemical processes in our environment. Some of these compounds are identical to man-made organobromine compounds, such as methyl bromide, bromoform, and bromophenols, but many others are entirely new moleclar entities, often possessing extraordinary and important biological properties. Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis of Ionic Ultramicroporous Polymers for Selective Separation of Acetylene from Ethylene》 was written by Suo, Xian; Cui, Xili; Yang, Lifeng; Xu, Nan; Huang, Yuqi; He, Yi; Dai, Sheng; Xing, Huabin. Quality Control of 1,4-Bis(bromomethyl)benzene And the article was included in Advanced Materials (Weinheim, Germany) in 2020. The article conveys some information:

The design of highly stable and efficient porous materials is essential for developing breakthrough hydrocarbon separation methods based on physisorption to replace currently used energy-intensive distillation/absorption technologies. Efforts to develop advanced porous materials such as zeolites, coordination frameworks, and organic polymers have met with limited success. Here, a new class of ionic ultramicroporous polymers (IUPs) with high-d. inorganic anions and narrowly distributed ultramicroporosity is reported, which are synthesized by a facile free-radical polymerization using branched and amphiphilic ionic compounds as reactive monomers. A covalent and ionic dual-crosslinking strategy is proposed to manipulate the pore structure of amorphous polymers at the ultramicroporous scale. The IUPs exhibit exceptional selectivity (286.1-474.4) for separating acetylene from ethylene along with high thermal and water stability, collaboratively demonstrated by gas adsorption isotherms and exptl. breakthrough curves. Modeling studies unveil the specific binding sites for acetylene capture as well as the interconnected ultramicroporosity for size sieving. The porosity-engineering protocol used in this work can also be extended to the design of other ultramicroporous materials for the challenging separation of other key gas constituents. The results came from multiple reactions, including the reaction of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Quality Control of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Alkyl bromides are mainly used as alkylating agents and also find application as a solvent to extract oil from seeds and wool. Quality Control of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Xiaoju; Li, Ying; Zhou, Sirong; Feng, Liheng published their research in Shanxi Daxue Xuebao, Ziran Kexueban in 2021. The article was titled 《Effective antibacterial agent with double arm clamp configuration for treatment of wound infections》.Application In Synthesis of 1,4-Bis(bromomethyl)benzene The article contains the following contents:

Pathogenic bacteria are always one of threat to human health. Developing novel and effective bactericides to replace current antibiotics is significant and imperative. A pyridine quaternary ammonium salt with double arm clamp configuration as an antibacterial material was designed and synthesized. By taking advantage of the bridging role and electron donating action of 2,2′-bis(4-(bromomethyl)benzyloxy)-1,1′-dinaphthalene, two pyridine mols. can join together to obtain increased pos. charges and antibacterial acivity. The synthesized antibacterial material can effectively kill three common pathogenic bacteria including Escherichia coli (ampicillin-resistant), Pseudomonas aeruginosa, and Salmonella typhimurium at a low concentration The mechanism of membrane-disrupted is proved to be related to the interaction with lipopolysaccharide. Furthermore, it is successfully applied to the treatment of bacteria-infected wound of living mice without obvious biotoxicity. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Application In Synthesis of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Application In Synthesis of 1,4-Bis(bromomethyl)benzene Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sen, Arunabha; Sharma, Shivani; Dutta, Subhajit; Shirolkar, Mandar M.; Dam, Gourab K.; Let, Sumanta; Ghosh, Sujit K. published an article in 2021. The article was titled 《Functionalized ionic porous organic polymers exhibiting high iodine uptake from both the vapor and aqueous medium》, and you may find the article in ACS Applied Materials & Interfaces.Reference of 1,4-Bis(bromomethyl)benzene The information in the text is summarized as follows:

Large-scale generation of radioactive iodine (129I, 131I) in nuclear power plants pose a critical threat in the event of fallout, thus rendering the development of iodine sequestering materials (from both the vapor and aqueous medium) highly pivotal. Herein, the authors report two chem. stable ionic polymers containing multiple binding sites, including Ph rings, imidazolium cations, and bromide anions, which in synergy promote adsorption of iodine/triiodide anions. In brief, exceptional iodine uptake (from the vapor phase) was observed at nuclear fuel reprocessing conditions. Furthermore, the ionic nature propelled removal of >99% of I3- from water within 30 min. Addnl., benchmark uptake capacities, as well as unprecedented selectivity, were observed for I3-anions. The excellent affinity (distribution coefficient, ∼105 mL/g) enabled iodine capture from seawater-spiked samples. Moreover, iodine-loaded compounds showed conductivity (10-4 S/cm, 10-6 S/cm), placing them among the best known conducting porous organic polymers. Lastly, DFT studies unveiled key insights in coherence with the exptl. findings. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Reference of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Reference of 1,4-Bis(bromomethyl)benzene Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary