Tag: 200-300

In 2022,Zhang, Liming; Zhao, Wenqing; Yuan, Shaohui; Yang, Yue; Ge, Peng; Sun, Wei; Ji, Xiaobo published an article in Small. The title of the article was 《Tailoring MSx Quantum Dots (M = Co, Ni, Cu, Zn) for Advanced Energy Storage Materials with Strong Interfacial Engineering》.Related Products of 516-12-1 The author mentioned the following in the article:

Metal sulfides, as vital members of electrodes materials, still suffer from serious volume expansion and polysulfides shuttling. Herein, through inexpensive and high efficiency chem.-bonding/hydrophobic-association methods, a series of metal-sulfides quantum dots (QDs) with large-scale synthesis (≈100 g) is successfully prepared, further forming low-dimensional composites with high redox activity. For the derived electrodes samples, with the increasing of outer electron numbers (Co2+/Ni2+/Cu2+/Zn2+), interfacial coupling is significantly modified. Among them, nanoscale ZnS@double carbon with rich interfacial Zn-O/S-C bonds displays remarkable electrochem. activity, with the capacity of ≈1000 mAh g-1 after 100 loops. Through tailoring double carbons and interfacial merits, in situ sulfur formation is stabilized, and the cycling stability of Zn-based samples can increase up to 4000 cycles. Even at 5.0 A g-1 after 1500 cycles, the full-cells capacity can reach up to ≈380 mAh g-1. Supported by detailed kinetic anal. and ex situ technologies, the enhanced interfacial capacitances and ions moving are confirmed for the improved electrochem. properties. Given this, the work is expected to boost future developments of mineral processing, and QDs preparation, while providing effective strategies for advanced electrode materials.1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Related Products of 516-12-1) was used in this study.

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Related Products of 516-12-1

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Sun, Jifu; Li, Weixu; Hou, Yuqi; Zhang, Xue; Gao, Zhongzheng; Wang, Bo; Zhao, Jianzhang published an article in 2021. The article was titled 《a-PET and Weakened Triplet-Triplet Annihilation Self-Quenching Effects in Benzo-21-Crown-7-Functionalized Diiodo-BODIPY》, and you may find the article in ACS Omega.Safety of 1-Iodopyrrolidine-2,5-dione The information in the text is summarized as follows:

Weakening the triplet-triplet annihilation (TTA) self-quenching effect induced by sensitizers remains a tremendous challenge due to the very few investigations carried out on them. Herein, benzo-21-crown-7 (B21C7)-functionalized 2,6-diiodo-1,3,5,7-tetramethyl-8-phenyl-4,4-difluoroboradiazaindacene (DIBDP) was synthesized to investigate the influences of huge bulks and electron-rich cavities of B21C7 moieties on the fluorescence emission and triplet-state lifetimes of DIBDP moieties. D. functional theory (DFT)/time-dependent DFT (TDDFT) computable results preliminarily predicted that B21C7 moieties had influences on the fluorescence emissions of DIBDP moieties but not on their localization of triplet states of B21C7-functionalized DIBDP (B21C7-DIBDP). The UV-vis absorption spectra, fluorescence emission spectra, and cyclic voltammograms verified that there was an electron-transfer process from the B21C7 moiety to the DIBDP moiety in B21C7-DIBDP. However, the calculated results of ΔGCS and ECS values and nanosecond time-resolved transient absorption spectra demonstrated that the electron-transfer process from the B21C7 moiety to the DIBDP moiety in B21C7-DIBDP had direct influences on the fluorescence emission of DIBDP moieties but not on the triplet states of DIBDP moieties. The exptl. values of triplet-state lifetimes of B21C7-DIBDP were obviously longer than those of DIBDP at a high concentration (1.0 x 10-5 M); however, the fitted values of intrinsic triplet-state lifetimes of B21C7-DIBDP were slightly greater than those of DIBDP in the same solvent. These results demonstrated that the steric hindrance of B21C7 moieties could weaken the TTA self-quenching effect of DIBDP moieties at a high concentration and the a-PET effect induced a proportion of the produced singlet states of DIBDP moieties and could not emit fluorescence in the form of radiation transition but they could be transformed into triplet states through intersystem crossing (ISC) processes due to the iodine atoms in the DIBDP moiety. The stronger a-PET effects in polar solvents induced smaller fluorescence quantum yields so that more singlet states of DIBDP moieties were transformed into triplet states to weaken the TTA self-quenching effects. After reading the article, we found that the author used 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Safety of 1-Iodopyrrolidine-2,5-dione)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Safety of 1-Iodopyrrolidine-2,5-dione

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Zhang, Xu; Huang, Yu-Mei; Qin, Hua-Li; Zhang, Baoguo; Rakesh, K. P.; Tang, Haolin published their research in ACS Omega in 2021. The article was titled 《Copper-Promoted Conjugate Addition of Carboxylic Acids to Ethenesulfonyl Fluoride (ESF) for Constructing Aliphatic Sulfonyl Fluorides》.Computed Properties of C7H5IO2 The article contains the following contents:

A CuO-promoted direct hydrocarboxylation of ethenesulfonyl fluoride (ESF) was developed using carboxylic acid as a nucleophile under mild conditions. A variety of mols. containing both ester group and aliphatic sulfonyl fluoride moiety exhibit great potential in medicinal chem. and chem. biol. Furthermore, the modification of the known drugs Ibuprofen and Aspirin was also demonstrated. In addition to this study using 4-Iodobenzoic acid, there are many other studies that have used 4-Iodobenzoic acid(cas: 619-58-9Computed Properties of C7H5IO2) was used in this study.

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Computed Properties of C7H5IO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2019,Chem included an article by Tessier, Romain; Ceballos, Javier; Guidotti, Nora; Simonet-Davin, Raphael; Fierz, Beat; Waser, Jerome. HPLC of Formula: 88-67-5. The article was titled 《””Doubly Orthogonal”” Labeling of Peptides and Proteins》. The information in the text is summarized as follows:

Herein, we report a cysteine bioconjugation methodol. for the introduction of hypervalent iodine compounds onto biomols. Ethynylbenziodoxolones (EBXs) engage thiols in small organic mols. and cysteine-containing peptides and proteins in a fast and selective addition onto the alkynyl triple bond, resulting in stable vinylbenziodoxolone hypervalent iodine conjugates. The conjugation occurs at room temperature in an open flask under physiol. conditions. The use of an azide-bearing EBX reagent enables a “”doubly orthogonal”” functionalization of the bioconjugate via strain-release-driven cycloaddition and Suzuki-Miyaura cross-coupling of the vinyl hypervalent iodine bond. We successfully applied the methodol. on relevant and complex biomols., such as histone proteins. Through single-mol. experiments, we illustrated the potential of this doubly reactive bioconjugate by introducing a triplet-state quencher close to a fluorophore, which extended its lifetime by suppressing photobleaching. This work is therefore expected to find broad applications for peptide and protein functionalization. In the experimental materials used by the author, we found 2-Iodobenzoic acid(cas: 88-67-5HPLC of Formula: 88-67-5)

2-Iodobenzoic acid(cas: 88-67-5) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. HPLC of Formula: 88-67-5 Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2019,Synlett included an article by Yuan, Yang; Wu, Xiao-Feng. Recommanded Product: Trimethylsulfoxonium iodide. The article was titled 《Synthesis of Esters from Stable and Convenient Sulfoxonium Precursors under Catalyst- and Additive-Free Conditions》. The information in the text is summarized as follows:

A convenient and efficient procedure for the construction of esters from stable sulfoxonium ylides and alcs. was developed. The protocol presented a broad substrate scope and good yields of the desired esters can be isolated. Notably no catalyst, oxidant, base or any other additive was required. In addition to this study using Trimethylsulfoxonium iodide, there are many other studies that have used Trimethylsulfoxonium iodide(cas: 1774-47-6Recommanded Product: Trimethylsulfoxonium iodide) was used in this study.

Trimethylsulfoxonium iodide(cas: 1774-47-6) reacts with sodium hydride to prepare dimethyloxosulfonium methylide, which is used as a methylene-transfer reagent in synthetic chemistry. It is used to prepare ylide, which reacts with carbonyl compounds to get epoxides. Further, it reacts with alfa,beta-unsaturated esters to get cyclopropyl esters.Recommanded Product: Trimethylsulfoxonium iodide

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2018,Zhang, Wei; Chen, Jia; Lin, Jin-Hong; Xiao, Ji-Chang; Gu, Yu-Cheng published 《Rapid Dehydroxytrifluoromethoxylation of Alcohols》.iScience published the findings.Related Products of 624-73-7 The information in the text is summarized as follows:

The dehydroxytrifluoromethoxylation of alcs. promoted by a R3P/ICH2CH2I (R3P = Ph3P or Ph2PCH=CH2) system in DMF was reported. P-I halogen bonding drives the reaction of R3P with ICH2CH2I in DMF to generate iodophosphonium salt (R3P+I I-) and a Vilsmeier-Haack-type intermediate, both of which could effectively activate alcs., thus enabling a fast (15 min) trifluoromethoxylation reaction. A wide substrate scope and a high level of functional group tolerance were observed In the experiment, the researchers used many compounds, for example, 1,2-Diiodoethane(cas: 624-73-7Related Products of 624-73-7)

1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs. Oceanic alkyl iodides are believed to be the principal source of atmospheric iodine.Related Products of 624-73-7

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2022,Hu, Jing; Gao, Bo; Qi, Qi; Zuo, Zhuang; Yan, Kai; Hou, Shaocong; Zou, Dechun published an article in ACS Omega. The title of the article was 《Flexible and Conductive Polymer Threads for Efficient Fiber-Shaped Supercapacitors via Vapor Copolymerization》.Formula: C4H4INO2 The author mentioned the following in the article:

Flexible fiber electrodes are critical for high-performance fiber and wearable electronics. In this work, we presented a highly conductive all-polymer fiber electrode by vapor copolymerization of 2,5-dibromo-3,4-vinyldioxythiophene (DBEDOT) and 2,5-diiodo-3,4-vinyldioxythiophene (DIEDOT) monomers on commonly used polyester threads (PETs) at a temperature as low as 80°C. The poly(3,4-ethylenedioxythiophene) (PEDOT)-coated PET threads maintain excellent flexibility and show conductivity of 7.93 S cm-1, nearly four times higher than that reported previously via homopolymerization of DBEDOT monomer. A MnO2 active layer was embedded into the PEDOT double layers, and the flexible fiber composite electrode showed a high linear specific capacitance of 157 mF cm-1 and improved stability, retaining 86.5% capacitance after 5000 cycles. Fiber-shaped solid-state supercapacitors (FSSCs) based on the composite electrodes were assembled, and they displayed superior electrochem. performance. This work provides a new approach to realize high-performance and stable wearable electronics. The experimental part of the paper was very detailed, including the reaction process of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Formula: C4H4INO2)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Formula: C4H4INO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《The Exploration of Aroyltrimethylgermane as Potent Synthetic Origins and Their Preparation》 was written by Yuan, Yang; Zhang, Youcan; Chen, Bo; Wu, Xiao-Feng. Recommanded Product: 1-Iodonaphthalene And the article was included in iScience in 2020. The article conveys some information:

The synthetic utilities of acylgermanes are surprisingly rarely explored compared with their analogs. The survey of aroyltrimethylgermane as potent synthetic origins was studied. A variety of novel chem. transformations were realized, including using the acylgermane group as a directing group in Rh-catalyzed aromatic C-H alkenylation reaction and Ir-catalyzed aromatic C-H amidation reactions. Addnl., a general approach for acylgermanes preparation was established as well. The catalytic system proceeds effectively in the presence of Pd(OAc)2/BINOL-based monophosphite (L11) and allows for the straightforward access to a wide range of functionalized acylgermanes in high yields. In the experiment, the researchers used 1-Iodonaphthalene(cas: 90-14-2Recommanded Product: 1-Iodonaphthalene)

1-Iodonaphthalene(cas: 90-14-2) is one of organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.Recommanded Product: 1-Iodonaphthalene

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Porous honeycomb-like NiSe2/red phosphorus heteroarchitectures for photocatalytic hydrogen production》 was written by Jia, Jia; Bai, Xue; Zhang, Qiqi; Hu, Xiaoyun; Liu, Enzhou; Fan, Jun. Reference of 1-Iodopyrrolidine-2,5-dione And the article was included in Nanoscale in 2020. The article conveys some information:

Heterojunction construction of semiconductors with a matched bandgap can not only help promote visible light absorption but also restrain photoexcited charge carrier recombination and optimize the separation efficiency. Herein, a novel porous honeycomb-like NiSe2/RP heterostructure is reported for the first time by in situ deposition of NiSe2 nanoparticles on the surface of red phosphorus (RP). The optimized binary NiSe2/RP composite showed superior photocatalytic H2 evolution activity (1968.8μmol g-1 h-1) from Na2S/Na2SO3 solution under solar light illumination, which was 2.32, 1.90, 1.59 and 1.21 times that of pristine RP, NiSe2, 5.3% FeS/RP and 8.1% NiS/RP, resp. Such a prominently improved photocatalytic performance could be ascribed to extended light absorption ability, massive reactive centers and lower interfacial transfer resistance, together with expedited charge separation, which arose from a successive two-electron/two-step reduction route. This study provides illuminating insights for the rational exploration and fabrication of potential photocatalytic systems with 0D/3D integrated nanoarchitecture and a multi-step electron transfer process for efficiently realizing solar energy capture and conversion. The experimental part of the paper was very detailed, including the reaction process of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Reference of 1-Iodopyrrolidine-2,5-dione)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Reference of 1-Iodopyrrolidine-2,5-dione

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2019,Polymer included an article by Zeng, Wang; Zhang, Yue; Zhao, Xuebo; Qin, Minglin; Li, Xianying; Jin, Wusong; Zhang, Dengqing. SDS of cas: 591-18-4. The article was titled 《One-pot synthesis of conjugated microporous polymers based on extended molecular graphenes for hydrogen storage》. The information in the text is summarized as follows:

Incorporation of highly extended π-conjugated mols. into conjugated microporous polymers (CMPs) is one of the important aspects in material science. Herein we synthesize conjugated microporous polymers (CMP-Gs) with covalently linked mol. graphenes by an efficient tandem oxidative reaction in one-pot, which comprising Scholl-type cyclodehydrogenation and oxidative polymerization Oxidation of m- or p-thienyl decorated hexaphenylbenzene derivatives with excess of FeCl3 allowing in situ generation of size-controlled graphitic segments form CMP-G1 and CMP-G2 in high yields, resp. CMP-Gs possess large surface areas and micropore size from 0.5 to 1.5 nm. Gravimetric hydrogen adsorption isotherms show that the adsorption capacity for hydrogen is up to 2.69 wt% for CMP-G1 and 2.14 wt% for CMP-G2 at 20 bar and 77 K, resp. The experimental process involved the reaction of 1-Bromo-3-iodobenzene(cas: 591-18-4SDS of cas: 591-18-4)

1-Bromo-3-iodobenzene(cas: 591-18-4) has been used in the preparation of 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodec-1-ene and 1-(3′-bromophenyl)-3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooct-1-ene.SDS of cas: 591-18-4 Further, it is involved in the preparation of oxygen-tethered 1,6-enynes.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com