Article
Chemistry, Multidisciplinary
Pengqing Bi, Jianqiu Wang, Yong Cui, Jianqi Zhang, Tao Zhang, Zhihao Chen, Jiawei Qiao, Jiangbo Dai, Shaoqing Zhang, Xiaotao Hao, Zhixiang Wei, Jianhui Hou
Summary: In this study, a multiscale fibril network morphology is constructed in a PBQx-TCl:PBDB-TF:eC9-2Cl-based system by regulating phase-transition kinetics. The ideal fibril network morphology enables superior charge transfer and transport processes, resulting in enhanced photon utilization efficiency. The optimized ternary cell achieves a high power conversion efficiency of 19.51% in a single-junction OPV cell. Furthermore, a tandem OPV cell with an excellent PCE of more than 20% is fabricated to increase solar photon absorption. This study provides guidance for constructing an ideal multiscale fibril network morphology and improving the photon utilization efficiency of OPV cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Debobroto Sensharma, Daniel J. O'Hearn, Amin Koochaki, Andrey A. Bezrukov, Naveen Kumar, Benjamin H. Wilson, Matthias Vandichel, Michael J. Zaworotko
Summary: Hybrid ultramicroporous materials (HUMs) are modular materials composed of metal cations and combinations of inorganic and organic ligands, making them suitable for crystal engineering studies. They have practical significance due to their excellent gas separation performance in industrial gas mixtures. This study reports the design and synthesis of a sulfate-linked HUM and sets a benchmark for the difference in sorption heats between C2H2 and CO2 at low loadings.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Organic
Nene Soga, Tomo Yoshiki, Aoi Sato, Takuji Kawamoto, Ilhyong Ryu, Hiroshi Matsubara
Summary: In this study, borane was generated in situ using a PV method from NaBH4 or (Bu4NBH4)-Bu-n and reacted with alkenes to produce alcohols. The evolved borane was also used for selective reduction of carboxylic acids and successful Suzuki-Miyaura coupling. The PV system allowed easy and safe reactions with borane in common test tubes.
TETRAHEDRON LETTERS
(2021)
Article
Physics, Fluids & Plasmas
Aldo R. Fernandes, Alfredo M. Ozorio de Almeida, Olivier Brodier
Summary: The exact solution of the Lindblad equation with quadratic Hamiltonian and linear coupling operators in the chord representation, also known as the Fourier transform of the Wigner function, is derived. It is generalized for several degrees of freedom, providing an explicit expression for the reduced density operator of any subsystem and moments as derivatives of the evolving chord function. The Wigner function is obtained as the convolution of its classical evolution with a multidimensional Gaussian window, ensuring its positivity. The Glauber-Sundarshan P function also maintains positivity, guaranteeing separability of the components. The dissipation matrix for multiple degrees of freedom is introduced, governing the rate of contraction of the phase space volume of the argument of the Wigner function and expansion of the chord function. Examples of Markovian evolution of a triatomic molecule and an array of harmonic oscillators are discussed.
Article
Chemistry, Organic
Toshiki Kawabata, Hiroshi Matsubara
Summary: Although diazomethane is highly explosive, the phase-vanishing method using highly fluorinated solvents was employed to safely generate it for organic synthesis. A two-chamber reactor was used to gradually evolve and consume diazomethane under PV conditions, such as the methylation of carboxylic acids. This PV system provides a facile and safe method for the generation of hazardous diazomethane.
TETRAHEDRON LETTERS
(2023)
Article
Green & Sustainable Science & Technology
Wenjing Su, Wenhao Xu, Nikolay E. Polyakov, Alexandr V. Dushkin, Pei Qiao, Weike Su
Summary: This study developed an efficient zero-waste utilization method for shrimp shell waste through mechanochemistry. The method successfully converts shrimp shell waste into valuable substances without generating any waste. The research proposes a green economic reuse approach for crustacean waste, aligning with the concept of circular economy.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Inorganic & Nuclear
Mingxing Zhang, Penghui Liu, Rui Dang, Peipei Zhang, Huihui Cui, Lifang Zhang, Guomin Jiang, Jin Wang, Miao Wang, Tongming Sun, Minmin Wang, Guoping Qin, Yanfeng Tang, Su Wang
Summary: This study demonstrates the realization of the first ligand-to-ligand and axial-to-axial pillaring method by shortening the previous shortest tetracarboxylate ligand. The resulting MOF NTUniv-56 exhibits a rare (2,4,6)-connected net with a new topology and shows interesting gas adsorption performance.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yue Zhu, Bolong Li, Yuan Fang, Chen Zhao
Summary: A green and economically feasible route for synthesizing PTMEG and methane using the furfural method was developed, which showed economic and environmental advantages over the traditional Reppe technique.
Article
Energy & Fuels
Yanyu Qiao, Zhichao Chen, Xiaolan Wu, Yu Zheng, Shuo Guan, Jiawei Li, Zhenhua Yuan, Zhengqi Li
Summary: A technical route for large-scale utilization of waste tire pyrolytic char (TPC) by combustion method was proposed. The physical and chemical characteristics and combustion characteristics of TPC were studied and compared with other similar materials. TPC was found to have a highly disordered structure and a well-developed pore structure, making it a potential substitute fuel to reduce coal consumption.
Article
Chemistry, Physical
Shuai Zhang, Fuzhen Bi, Jianhua Han, Chenyu Shang, Xiao Kang, Xichang Bao
Summary: In this study, an insulating polymer with high relative dielectric constant was introduced into the ternary active layers of organic solar cells (OSCs) to improve their performance by enhancing light utilization and interface modulation.
Article
Engineering, Environmental
Philip Zimmer, Christian Stolze, Simon Muench, Weisheng Xiao, Steffi Stumpf, Stephanie Hoeppener, Martin D. Hager, Ulrich S. Schubert
Summary: This study investigates the role of the conductive additive SuperP(R) in organic battery electrodes. It is found that the addition of SuperP(R) creates conducting percolation paths in the electrode, leading to a significant increase in capacity utilization.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Suhas S. Shetye, Siby Kurian, P. J. Vidya, Mangesh Gauns, Damodar M. Shenoy, S. G. Aparna, K. Nandakumar, Supriya G. Karapurkar
Summary: The study investigated the seasonal and temporal variation of total organic carbon (TOC) in the eastern Arabian Sea, revealing spatial changes in TOC concentrations in the top 100 meters during the North east and South west monsoons. High TOC levels were associated with Arabian Sea high saline waters advected from the Arabian Gulf, potentially influencing TOC enhancement in the region. Despite low primary productivity, excess TOC supported a high abundance of bacteria.
MARINE POLLUTION BULLETIN
(2021)
Article
Multidisciplinary Sciences
Lucia Paya-Tormo, Diana Coroian, Silvia Martin-Munoz, Artavazd Badalyan, Robert T. Green, Marcel Veldhuizen, Xi Jiang, Gema Lopez-Torrejon, Janneke Balk, Lance C. Seefeldt, Stefan Buren, Luis M. Rubio
Summary: In this study, a reduced sulfonated viologen derivative (S2Vred) assay was used to analyze isolated nitrogenase proteins for screening potential candidate components for engineering nitrogen-fixing crops. The study demonstrated the existence of nitrogenase components with specific biochemical properties and highlighted their importance in nitrogen fixation engineering.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Applied
Mohammad Nazari Kalojeh, Roghayeh Hassanpour Sabet, Mir Ali Farajzadeh, Mohammad Reza Afshar Mogaddam, Elnaz Marzi Khosrowshahi, Mustafa Tuzen
Summary: A dispersive solid phase extraction procedure combined with dispersive liquid-liquid microextraction was developed for the extraction and enrichment of pesticides from fruit juices. Zeolitic imidazolate framework-carbon dot composite was used as the sorbent, and acetone was used as the elution solvent. The method showed satisfactory limits of detection and quantification, linear calibration curves, high enrichment factors, and extraction recoveries, and negligible matrices effect. All samples were found to be free of the analytes.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Engineering, Marine
Lingxiao Ren, Jing Huang, Huagang Zhu, Wei Jiang, Haoyu Wu, Yuyang Pan, Yinghui Mao, Minghan Luo, Taeseop Jeong
Summary: Phosphorus plays a crucial role in the growth and adaptation of algae, with the addition of DOM helping to alleviate the negative effects of UV radiation on algae and promoting their adaptation to UV radiation. Understanding the impact of DOP and DOM on algal physiological responses is essential for controlling cyanobacterial bloom in nutrient-rich waters.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Oncology
Takuya Ishikawa, Hiroki Kawashima, Eizaburo Ohno, Hiroshi Matsubara, Yoji Sasaki, Koichi Achiwa, Akira Kanamori, Hajime Sumi, Takanori Hirai, Koji Nonogaki, Tomoyuki Tsuzuki, Masanori Kuroiwa, Masashi Hattori, Shinya Maruta, Takeshi Hiramatsu, Masahiko Ando, Senju Hashimoto, Yoshiki Hirooka
Article
Gastroenterology & Hepatology
Hiroki Kawashima, Senju Hashimoto, Eizaburo Ohno, Takuya Ishikawa, Tomomasa Morishima, Hiroshi Matsubara, Hiroyuki Sugimoto, Koji Nonogaki, Akira Kanamori, Kazuo Hara, Takamichi Kuwahara, Masanao Nakamura, Ryoji Miyahara, Masatoshi Ishigami, Masahiko Ando, Yoshiki Hirooka
DIGESTIVE ENDOSCOPY
(2019)
Article
Chemistry, Organic
Kotaro Yubata, Hiroshi Matsubara
TETRAHEDRON LETTERS
(2019)
Review
Chemistry, Organic
Hiroshi Matsubara
JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
(2019)
Article
Chemistry, Organic
Takuji Kawamoto, Kyohei Oritani, Atsushi Kawabata, Tsubasa Morioka, Hiroshi Matsubara, Akio Kamimura
JOURNAL OF ORGANIC CHEMISTRY
(2020)
Article
Gastroenterology & Hepatology
Takuya Ishikawa, Hiroki Kawashima, Eizaburo Ohno, Hiroki Suhara, Daijuro Hayashi, Takeshi Hiramatsu, Hiroshi Matsubara, Takahisa Suzuki, Takamichi Kuwahara, Eri Ishikawa, Yoshie Shimoyama, Fumie Kinoshita, Yoshiki Hirooka, Mitsuhiro Fujishiro
Article
Biochemistry & Molecular Biology
Miyu Sakaguchi, Yasushi Makino, Hiroshi Matsubara
GLYCOCONJUGATE JOURNAL
(2020)
Article
Chemistry, Organic
Nene Soga, Tomo Yoshiki, Aoi Sato, Takuji Kawamoto, Ilhyong Ryu, Hiroshi Matsubara
Summary: In this study, borane was generated in situ using a PV method from NaBH4 or (Bu4NBH4)-Bu-n and reacted with alkenes to produce alcohols. The evolved borane was also used for selective reduction of carboxylic acids and successful Suzuki-Miyaura coupling. The PV system allowed easy and safe reactions with borane in common test tubes.
TETRAHEDRON LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Takuji Kawamoto, Kohki Noguchi, Ryotaro Takata, Rio Sasaki, Hiroshi Matsubara, Akio Kamimura
Summary: The redox-neutral tetrafluoroethylation of alkynes with TFESA and AIBN proceeds through the formation of vinyl tetrafluoroethanesulfonates followed by a radical tetrafluoroethylation. Both experimental and theoretical results support an intermolecular reaction mechanism.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Ayato Ikeda, Yasushi Makino, Hiroshi Matsubara
Summary: Glycogen debranching enzyme (GDE) has both 4-alpha-glucanotransferase and amylo-alpha-1,6-glucosidase activities. This study analyzed the substrate specificities of these enzymes and proposed a macroscopic debranching pathway.
GLYCOCONJUGATE JOURNAL
(2022)
Article
Chemistry, Organic
Yuji Nishidai, Toshiki Kawabata, Kotaro Yubata, Fumiya Ota, Hiroki Takamiya, Hideki Fujiwara, Hiroshi Matsubara
Summary: In this study, a new method for the preparation of hetero-halogen compounds was developed. Two novel air-stable hetero-halogen complexes were synthesized and utilized for the one-step synthesis of various hetero-halogen compounds.
Article
Chemistry, Applied
Motohiro Yasui, Naoko Tahara, Hiroshi Matsubara, Norihiko Takeda, Masafumi Ueda
Summary: This study developed a sequential gold-catalyzed reaction for synthesizing 4-aryl-3-(2H)-isoxazolones with a hydroxy group. The method allows the introduction of an aryl and hydroxy group in a single procedure, exhibiting good chemoselectivity and tolerance towards reactive functional groups.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Chemistry, Organic
Toshiki Kawabata, Hiroshi Matsubara
Summary: Although diazomethane is highly explosive, the phase-vanishing method using highly fluorinated solvents was employed to safely generate it for organic synthesis. A two-chamber reactor was used to gradually evolve and consume diazomethane under PV conditions, such as the methylation of carboxylic acids. This PV system provides a facile and safe method for the generation of hazardous diazomethane.
TETRAHEDRON LETTERS
(2023)
Article
Chemistry, Physical
Kenichi Iwamoto, Genki Inoue, Hiroshi Matsubara
Summary: The C5H7+ fragment ion derived from 3-methyl1,4-pentadiene (MPD) was investigated using an ion mobility/mass spectrometer. The reduced mobilities (K0) of the C5H7+ fragment ions generated by MPD and cyclohexene correlated with effective temperature in He buffer gas, indicating that these fragments were identical cyclopentenium cations. Density functional theory calculations revealed the feasibility of the dissociation of MPD to cyclopentenium cations.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Organic
Masahiro Ueda, Atsuki Kitano, Hiroshi Matsubara
Summary: The selective hydrogen abstraction reactions on sp(3) carbons with oxyradicals were investigated using ab initio and DFT calculations. It was found that beta-hydrogen abstraction was favorable, consistent with experimental findings. NBO analysis revealed that the transferred hydrogen atom is partially positively charged when abstracted by an oxyradical, and hydrogens bonded to the most positively charged carbon in the substrate were predominantly abstracted, providing a simple compass for predicting regioselectivity in the functionalization of C(sp(3))-H bonds with oxyradicals.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2021)
