Article
Chemistry, Multidisciplinary
Manjur O. Akram, John R. Tidwell, Jason L. Dutton, Caleb D. Martin
Summary: The synthesis of a single site neutral Lewis superacid, tris(ortho-carboranyl)borane (BoCb(3)), was achieved in one pot from commercially available materials. It was confirmed to be a Lewis superacid due to its high fluoride ion affinity (FIA), and exhibited stronger Lewis acidity compared to widely used fluorinated aryl boranes, as evidenced by the Gutmann-Beckett method and adducts with Lewis bases. The unusually high Lewis acidity can be rationalized by the electron-withdrawing effect of ortho-carborane and lack of pi-delocalization of the LUMO. Catalytic studies demonstrated that BoCb(3) is a superior catalyst for promoting C-F bond functionalization reactions compared to tris(pentafluorophenyl)borane [B(C6F5)(3)].
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Multidisciplinary
Pallavi Sarkar, Shubhajit Das, Swapan K. Pati
Summary: This article summarizes the progress in the study of non-boron Lewis acids since 2015, which are an important component of Frustrated Lewis pairs.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Organic
Jarno Riefer, Ludwig Zapf, Raphael Wirthensohn, Philipp T. Hennig, Tatjana Ribbeck, Jan A. P. Sprenger, Nikolai V. Ignat'ev, Maik Finze
Summary: Cyanoborane adducts of B(CN)(3), BF(CN)(2), and BH(CN)(2) with pyridine and 4-cyanopyridine have been synthesized and characterized. The reduction of the adducts and the Lewis acidity of the cyanoboranes have been investigated. Experimental data and trends have been compared to theoretical ones.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Wei Su, Thayalan Rajeshkumar, Libo Xiang, Laurent Maron, Qing Ye
Summary: In this contribution, uranium complexes with a pendant borate or borane moiety were synthesized and investigated. Complexes 3 and 4, bearing a pendant borane group, represent the first examples of uranium complexes with a pendant borane Lewis acid. The study showed that complex 3 is capable of CO activation and abnormal CO 1,2-insertion reaction, highlighting the importance of the pendant borane moiety.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Kaixue Xie, Martin Oestreich
Summary: Readily available cyclohexa-2,5-dien-1-ylcarbonyl chloride derivatives were used as stable HCl surrogates for transfer hydrochlorination of alkenes and alkynes. B(C6F5)(3) facilitated the stepwise fragmentation of acyl chlorides, allowing the addition of HCl across C-C double and triple bonds with Markovnikov selectivity at room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Hadi Dolati, Lars Denker, Bartosz Trzaskowski, Rene Frank
Summary: A new amido imidazoline-2-imine ligand system (HAmIm) has been developed for the isolation of stable boron and chalcogen boranes, showing improved chemical stability and enhanced sigma- and pi-donation compared to traditional systems. The discovery suggests potential applications in certain fields where the HAmIm ligand class may outperform the widely employed NacNac system.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Avijit Roy, Martin Oestreich
Summary: The hydrosilylation of ketenes promoted by boron Lewis acid catalyst accelerates the reaction with hydrosilanes, providing access to a new class of aldehyde-derived silyl enol ethers. Moderate to high yields are obtained, with a preference for Z configuration.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Daniel Duvinage, Lorraine A. Malaspina, Simon Grabowsky, Stefan Mebs, Jens Beckmann
Summary: In this study, the molecular and electronic structures of five divalent bis(m-terphenyl)element cations were investigated using experimental and computational methods. The preparation and characterization of some of these cations have been previously reported, while one was prepared and characterized for the first time. Quantum chemical calculations were used to analyze their electronic structures and compare them to a similar group of compounds previously studied. The results showed that these compounds have high fluoride ion affinities, classifying them as Lewis superacids.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Fabian Schaefer, Jan-Hendrik Lamm, Beate Neumann, Hans-Georg Stammler, Norbert W. Mitzel
Summary: Connecting various organic spacer functions via silicon core units leads to organosilanes suitable as backbones for poly-Lewis acids, resulting in rigid and flexible PLAs. Solid-state structures and host-guest experiments demonstrate the characteristics of these PLAs, showing their ability to complex with neutral guest molecules.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Alexandra T. Shulyak, Evgeniy O. Bortnikov, Nikita A. Selivanov, Mikhail S. Grigoriev, Alexey S. Kubasov, Andrey P. Zhdanov, Alexander Y. Bykov, Konstantin Y. Zhizhin, Nikolai T. Kuznetsov
Summary: This study investigates the interaction between the octahydrotriborate anion and various nucleophiles in the presence of different Lewis acids. It obtains several substituted derivatives of the octahydrotriborate anion and finds that the use of specific Lewis acids leads to higher product yields. The formation of an intermediate is detected by NMR spectroscopy.
Article
Chemistry, Organic
Changhang Dai, Matthew Chapman, Masayuki Wasa
Summary: We propose a method for the combination of N-allylamines and carbonyl compounds through the concerted action of B(C6F5)(3) and a N-based Bronsted base under redox-neutral conditions. By the reaction of in situ generated conjugated iminium ions and enolates, & delta;-aminocarbonyl compounds are obtained without waste generation. Furthermore, the cooperative action of B(C6F5)(3), a chiral Zn-based complex, and an amine enables the stereoselective reaction of a glycinate Schiff base ester and an N-allylamine to yield an & alpha;-substituted & alpha;-amino ester.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Daniel E. Trujillo-Gonzalez, Gerardo Gonzalez-Garcia, Trevor A. Hamlin, F. Matthias Bickelhaupt, Holger Braunschweig, J. Oscar C. Jimenez-Halla, Miquel Sola
Summary: Boron-boron multiple bonds, such as diborenes and diborynes, are stabilized by sigma-donor ligands that provide electron density to these electron-deficient species. These compounds play a significant role in the study of chemical bonding and can activate small molecules like transition metals. Our density functional calculations showed that ligands with high or medium Lewis basicity effectively stabilize diborynes, while beryllium-based ligands show promise in stabilizing diborynes without affecting the triple bond character.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jens Rudlof, Timo Glodde, Andreas Mix, Beate Neumann, Hans-Georg Stammler, Norbert W. Mitzel
Summary: In this study, three bifunctional boron-Lewis acids were synthesized using a tin-boron exchange protocol, and the complexation reaction between these acids and pyrimidine was thoroughly investigated. The results revealed the dynamic behavior between the synthesized acids and pyrimidine.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Fabian Schaefer, Beate Neumann, Hans-Georg Stammler, Norbert W. Mitzel
Summary: This study describes the preparation of hexadentate poly-Lewis acids with different dentate effects, suitable for complexation with neutral Lewis-based guest molecules. By altering the functional groups, the acidity of poly-Lewis acids can be increased to enhance their binding ability with guests.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Organic
Mahiro Sakuraba, Taichi Morishita, Taiki Hashimoto, Sensuke Ogoshi, Yoichi Hoshimoto
Summary: A strategy for modulating the Lewis acidity of triarylboranes is proposed based on the concept of remote back strain. Steric repulsion and noncovalent interactions between the aryl meta-substituents are crucial for determining the strength of the remote back strain. The synthesized B[2,6-F-2-3,5-(TMS)(2)-C6H](3) and liquid B[2,6-F-2-3,5-(allyl)(2)-C6H](3) exhibit superior catalytic activity for the hydrogenation of quinoline compared to B(C6F5)3 or B(2,6-F2C6H3)(3). The first example of catalytic hydrogenation of quinoline using B[2,6-F-2-3,5-(allyl)(2)-C6H](3) in the presence of a gaseous 1:1:1 molar mixture of H-2, CO, and CO2 is demonstrated.
Review
Materials Science, Multidisciplinary
Minhuan Jin, Jinyi Wang, Kaiqian Weng, Tianxing Sun, Daying Guo, Xueyu Wang, Xi'an Chen, Shun Wang
Summary: Fluorinated solid-state electrolytes (FSSEs) have been widely used in all-solid-state lithium batteries (ASSLBs) due to their good compatibility, wide electrochemical windows, and stable chemical stability. However, challenges such as ionic conductivity, chemical stability, and current limitation hinder the practical application of fluorinated solid electrolytes. This review discusses the development history of FSSEs, analyzes recent advances in improving ion conductivity, chemical stability, and current limit through structural design, interface regulation strategies, etc., and prospects the design requirements for future generations of FSSEs, focusing on simple one-step synthesis methods, room temperature ionic conductivity improvement, and optimization of the electrochemical stability window of FSSEs.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Analytical
Guorui Zhang, Di Kang, Zhonghui Zhang, Yuanchang Li, Jingjing Jiang, Qin Tu, Junzheng Du, Jinyi Wang
Summary: The filter paper-syringe (FPS) delivery method is a new type of cell permeation approach that forces cells to pass through filter paper quickly, enhancing cell membrane permeability and enabling the delivery of exogenous substances. This method is simple, easy-to-operate, and fast, with delivery efficiency comparable to liposomal delivery of siRNA.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Environmental
Junyu Su, Maosen Yuan, Lu Han, Hongxia Deng, Jiahao Chang, Yuting Zhuang, Jinyi Wang, Yue Zhang
Summary: In this study, a defluoridation approach based on ultrathin two-dimensional metal organic framework nanosheets was proposed. The Ce-DCPBA nanosheets exhibited high-capacity adsorption of fluoride in a wide pH range. The exceptional selectivity and adsorption ability of Ce-DCPBA make it a promising material for the selective and efficient removal of fluoride from complex environmental samples.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yajuan Deng, Tianbao Li, Qin Tu, Jinyi Wang
Summary: Flexible and wearable hydrogel sensors have attracted significant interest due to their potential applications in human-machine interfaces, human-activity monitoring, and personal healthcare diagnosis. This study presents a healable, adhesive, and conductive hydrogel sensor that incorporates polydopamine decorated carbon nanotubes (PDA-CNTs) and FeCl3 into an acrylamide-co-acrylic acid polymer matrix. The hydrogel sensor exhibited good stretchability and high sensitivity, as well as fast and repeatable self-healing ability. It also demonstrated stable and accurate monitoring of human motions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Tao Wang, Jinyi Wang, Pengjie Wang, Fan Wang, Liping Liu, Haijiao Guo
Summary: In this study, a 3D numerical model and quantitative parameters were established to investigate the liquid flow uniformity in a concave-convex bi-polar plate (CCBP) electrolyzer. The simulated velocity field revealed significant non-uniform flow in the CCBP electrolyzer, which was validated by a flow visualization experiment. The residence time distribution (RTD) analysis using the CFD coupled particle tracing method can be applied as a criterion for electrolyzer structure design, operation optimization, and scale-up.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Yang Liu, Shimin Zhou, Wendong Jin, Jie Niu, Kang-Nan Wang, Zhiqiang Liu, Xiaoqiang Yu
Summary: Intracellular polarity plays a crucial role in indicating the microenvironment property of the whole cell and is closely related to various physiological processes in different organelles. A polarity-sensitive probe 1P2N was developed for visualizing the whole cytoplasmic polarity, which emits different fluorescence colors depending on the polarities of the hydrophilic cytoplasm and lipidic organelles. This probe can be used for ratiometric fluorescence monitoring of polarity changes under different physiological conditions, providing a useful tool for studying polarity-related processes in the cytoplasmic microenvironment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chenjie Zhang, Lin Huang, Jinyi Wang, Tianliang Zhou, Rong-Jun Xie
Summary: In this work, a method is proposed to find hosts that produce broadband NIR Cr3+ emission by screening Ce3+-doped phosphor hosts, allowing Ce3+ and Cr3+ to occupy the same crystallographic site. A NIR phosphor Ba3Sc4O9:Cr3+ is obtained with an emission peak at 835 nm and a FWHM of 188 nm, where Ce3+ or Cr3+ is accommodated at the same Sc3+ site. By following this method, two broadband NIR phosphors Li3Sc2(PO4)3:Cr3+ (lambda(em) = 1000 nm, FWHM = 223 nm) and Na3Sc2(PO4)3:Cr3+ (lambda(em) = 895 nm, FWHM = 184 nm) are discovered.
CHEMISTRY OF MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chen Chen, Jian Zhou, Jincheng Yu, Jia Ju, Ying Zhang, Jinyi Wang, Bowen Fan
Summary: Tin bronze was cladded on bare steel and nickel-plated steel to fabricate bimetallic materials. The interfacial microstructures and infiltrated cracks were investigated. Infiltrated cracks originated from the interface and propagated into the interior of the steel along the grain boundaries. When tin bronze was cladded on nickel-plated steel, a transition layer with BCC-Fe structure was also generated and the infiltrated cracks were eliminated.
JOURNAL OF MATERIALS SCIENCE
(2023)
Correction
Chemistry, Multidisciplinary
Zuzhe Kang, Jingjing Jiang, Qin Tu, Shuaiting Liu, Yue Zhang, Dong-En Wang, Jinyi Wang, Mao-Sen Yuan
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Shaofei Shen, Fangjuan Zhang, Yali Zhang, Yi Li, Yanbing Niu, Long Pang, Jinyi Wang
Summary: A multiconcentration gradient generator was constructed to investigate the effect of different drug concentration gradients on cells. The results showed that chemotherapy drugs inhibited the growth of cancer cells, and hepatoma cells exhibited higher drug resistance. This device provides a simple and reliable platform for studying optimal dosages at the single-cell level and screening chemotherapy regimens.
MICROSYSTEMS & NANOENGINEERING
(2023)
Article
Engineering, Manufacturing
Yong-Hua Shi, Zi-Shun Wang, Xi-Yin Chen, Yan-Xin Cui, Tao Xu, Jin-Yi Wang
Summary: This paper proposes a two-stage model, called the segmentation-LSTM model, to monitor the penetration state of K-TIG welding in real time. The system extracts 9 weld pool geometric features with a segmentation network and extracts the weld gap using a traditional algorithm. These 10-dimensional features are then input into the LSTM model for penetration state prediction, with a recognition accuracy of 95.2%.
ADVANCES IN MANUFACTURING
(2023)
Article
Chemistry, Applied
Jinyu Fu, Jie Niu, Qiuhua Hao, Fangfang Meng, Chong Zong, Xiuquan He, Zhiqiang Liu, Xiaoqiang Yu
Summary: In this study, we report a cationic probe DQPI-12 with a long alkyl chain that can effectively target mitochondria and has excellent leakage-free performance. DQPI-12 also exhibits superior photostability compared to commercial mitochondria probes and those reported by others. The inherent characteristics of DQPI-12 enable long-term and high-fidelity visualization of mitochondria in a special microscopic field, allowing real-time and in-situ tracking of mitochondrial dynamics and mitophagy.
Article
Materials Science, Biomaterials
Qi Song, Zhiqiang Liu, Jie Niu, Bowen Zheng, Jingcheng Hao, Jie Jiang
Summary: A two-photon excited fluorescent probe CMB-1 has been developed for the detection and regeneration of formaldehyde. It utilizes a novel nucleophilic addition and alcoholysis reactivity mechanism, enabling a specific turn-on response towards formaldehyde and allowing monitoring of both exogenous and endogenous formaldehyde in living cells through one- and two-photon microscopy, with minimal impact on its native homeostasis and local concentration.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Engineering, Chemical
Anrong Yao, Jinghong Qiu, Yafang Wang, Haoyi Hu, Cuimin Huang, Jingyi Wang, Siyao Tian, Lin Yang, Shaojian Lin, Jianwu Lan
Summary: In this study, MIL-88B loaded montmorillonite (MMT) and cellulose nanocrystals (CNC) were incorporated into gelatin aerogel to create a multifunctional and reinforced bio-aerogel, MMCG aerogel, for the removal of organic pollutants. The MMCG aerogel exhibited highly efficient adsorption capacity and showed improved removal performance for all organic contaminants by triggering the Fenton reaction with the addition of H2O2.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Dianlin Wang, Jiang He, Zili Xiao, Jingyi Wang
Summary: This article discusses the limitations on molar ratios and concentrations in Isothermal titration calorimetry (ITC) caused by the volumes and concentrations of syringe and sample cell. The study explores the neglected aspect of the molar ratios and concentrations of sodium dodecylsulfate (SDS) and imidazolium-based ILs in self-assembly structure transitions. The variations in macroscopic properties and molecular ratios of surfactants responsible for constructing vesicle structures in different alkyl chain lengths systems are investigated using enthalpy changes and cryogenic Transmission Electron Microscopy (cryo-TEM).
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
