Article
Chemistry, Multidisciplinary
Daven Foster, Pengchao Gao, Ziyun Zhang, Gellert Sipos, Alexandre N. Sobolev, Gareth Nealon, Laura Falivene, Luigi Cavallo, Reto Dorta
Summary: Chiral, cationic NHC-iridium complexes have been introduced as catalysts for the intramolecular hydroamination reaction of unactivated aminoalkenes, showing high activity and selectivity. By eliminating a major deactivation pathway, the efficiency of the reaction is improved. Through experimental and computational studies, valuable insights into the reaction mechanism have been gained.
Article
Chemistry, Organic
Miaojiang Wu, Guang Gao, Chao Yang, Peng Sun, Fuwei Li
Summary: This study reports the synthesis of phosphine-containing porous organic polymers (phosphine-POPs) with different pi-acceptor properties and evaluates their performance as ligands for the hydroformylation of alkenes. The results show that phosphine-POPs with stronger pi-acceptor properties exhibit better catalytic performance, providing guidance for the design of phosphine-POPs for hydroformylation reactions.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Review
Biochemistry & Molecular Biology
Justyna Wieclawik, Anna Chrobok
Summary: The chemical industry needs environmentally friendly processes, as acid-catalysed processes may cause environmental problems. The search for sustainable alternatives to conventional acids is urgent. Metal-containing ionic liquids have been of great interest to scientists due to their high Lewis acidity, which depends on the composition of the ionic liquid and the specific content of metal salt. These compounds are widely used as catalysts, co-catalysts, or reaction media in various fields of chemistry, particularly in organic chemistry. Gallium(III)- and indium(III)-containing ionic liquids effectively enhance the activity of metal salts and are easier to handle. This review emphasizes the wide range of applications and the potential of metal-containing ionic liquids, with a focus on Ga(III) and In(III), which can guide further research and synthesis of new compounds in this group.
Review
Nanoscience & Nanotechnology
Q. Zhu, Y. Cui, Y. Zhang, Z. Cao, Y. Shi, J. Gu, Z. Du, B. Li, S. Yang
Summary: MXenes are two-dimensional transition metal carbides, nitrides, and carbonitrides with high catalytic potential due to their unique properties. Various engineering strategies, such as termination engineering and atomic engineering, can enhance the catalytic performance of MXenes. Mechanistic studies and advanced in situ techniques are important for understanding the catalytic activity and active sites of MXenes.
MATERIALS TODAY NANO
(2021)
Article
Chemistry, Multidisciplinary
Yawen Li, Zhenzhen Zhang, Tengfei Li, Yuanxin Liang, Wenqin Si, Yuze Lin
Summary: In this study, chiral organic semiconductors (Y6-R and Y6-S) were designed and synthesized to show effective aggregation-induced chirality. It was found that the aggregation-induced chirality generated spin-polarization, which suppressed charge recombination and increased the number of available charge-carriers. Furthermore, the chiral Y6-R and Y6-S exhibited enhanced catalytic activity as nanoparticle photocatalysts in photocatalytic hydrogen evolution under simulated solar light.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Yanqing Ge, Shaofeng Huang, Yiming Hu, Lei Zhang, Ling He, Sebastian Krajewski, Michael Ortiz, Yinghua Jin, Wei Zhang
Summary: Alkyne metathesis catalysts typically face limitations due to high moisture/air sensitivity, restricting their broad applicability. The authors present efficient alkyne metathesis catalysts that can operate under open-air conditions with a broad functional group tolerance.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Yahan Wang, Saifei Wang, Jingyu Bai, Long Zhang, Shiguang Zhao, Jiguang Deng, Xiaolong Tang, Erhong Duan
Summary: A Co3O4/La2O2CO3/ LaCoO3 heterostructure catalyst with excellent catalytic performance, resistance to water, and resistance to poisoning was prepared using a simple solvent-thermal method. Experimental characterization and DFT calculations showed that La2O2CO3 provides more reactive oxygen species to enhance the oxidation of methane, while also protecting the active site of Co3O4 from water and SO2 adsorption. The structure of the catalyst promotes electron transfer, enhancing the adsorption and dissociation of oxygen and methane.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Applied
Yu Liu, Jiayun Li, Ying Bai, Jiajian Peng
Summary: A series of nitrogen phosphine ligands were synthesized for investigating the hydrosilylation reaction of alkenes catalyzed using MCl2. Among them, the CoCl2/N,P-ligand catalyst system showed high catalytic activity and excellent selectivity, achieving close to 100% selectivity for beta-adduct.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yuichi Okazaki, Seiji Oda, Akihiko Takamatsu, Shogo Kawaguchi, Hirofumi Tsukasaki, Shigeo Mori, Shunsuke Yagi, Hidekazu Ikeno, Ikuya Yamada
Summary: The rational design of highly active catalysts for the oxygen evolution reaction (OER) is important for energy-conversion applications. Postspinel-structured oxides, CaB2O4, exhibit higher OER activities due to their lower charge-transfer resistances. A density-functional-theory calculation suggests a novel mechanism of lattice oxygen pairing with adsorbed oxygen, which results in the lowest theoretical OER overpotential.
Article
Chemistry, Multidisciplinary
Benjamin Rudolph, Anastasios I. Tsiotsias, Benedikt Ehrhardt, Paolo Dolcet, Silvia Gross, Sylvio Haas, Nikolaos D. Charisou, Maria A. Goula, Simone Mascotto
Summary: Nanoporosity is advantageous for the performance of heterogeneous catalysts. This study focuses on the exsolution of Ni nanoparticles from nanoporous perovskite oxides and demonstrates their effective application in biogas dry reforming. The nanoporous exsolved catalysts exhibit higher activity, stability, and regenerability compared to commercial Ni/Al2O3 catalyst.
Article
Chemistry, Applied
Zhuo Han, Lingyun Dai, Yuxi Liu, Jiguang Deng, Lin Jing, Yingxin Zhang, Kunfeng Zhang, Xing Zhang, Zhiquan Hou, Wenbo Pei, Hongxing Dai
Summary: Three-dimensionally ordered macroporous (3DOM) MnCo2O4 supported Co3O4 and AuPd catalysts were prepared and showed excellent catalytic activity for methane combustion. The catalyst with 1.98% AuPd and 2.1% Co3O4 exhibited the highest activity at high temperatures. Partial deactivation of the catalyst by water vapor or carbon dioxide was reversible.
Article
Chemistry, Applied
Ryota Osuga, Peixuan Fang, Haruka Nishiyama, Koji Takizawa, Noritoshi Yagihashi, Toshiyuki Yokoi, Junko N. Kondo
Summary: Highly active and long-lived Hf-containing SBA-15 catalysts were successfully synthesized using a sol-gel method for the first time, showing higher specific surface area, mesopore volume, and Hf dispersion compared to conventional Hf-supported catalysts, leading to a higher 1,3-butadiene yield.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Cailing Chen, Lingkun Meng, Mohammed R. Alalouni, Xinglong Dong, Zhi-Peng Wu, Shouwei Zuo, Huabin Zhang
Summary: An ultra-highly active Ni-MOF-5 catalyst with high Ni loading was synthesized by replacing Zn2+ with Ni2+ in MOF-5 through a facile one-pot co-precipitation method. The catalyst achieved an ethylene turnover frequency of 352,000 h(-1), far exceeding the activities of all reported heterogeneous catalysts. The high catalytic performance can be attributed to the high Ni loading and full exposure structure of Ni-MOF-5.
Article
Chemistry, Physical
Chengcheng Li, Xiao-Yong Chang, Luqiong Huo, Haibo Tan, Xiangyou Xing, Chen Xu
Summary: Cyanohydrins are a special type of nitriles that can easily decompose into hydrogen cyanide and carbonyl compounds. Despite challenges such as low stability and catalyst deactivation, the development of cationic platinum catalysts has shown high reactivity in hydrating various cyanohydrins, including difficult ones like alpha,alpha-diaryl cyanohydrins, at ambient temperatures.
Article
Chemistry, Multidisciplinary
Bikun Zhang, Jian Zhou, Zhimei Sun
Summary: This study investigates the COOR catalytic activity of 18 oxygen-functionalized MBenes using high-throughput first-principles calculations. Several MBenes, including hex-Mo2B2O2, orth-Mo2B2O2, hex-V2B2O2, and hex-Cr2B2O2, show higher catalytic activity than CeO2 and have potential as substrates for COOR catalysts. Moreover, orth-Mo2B2O2, hex-V2B2O2, and hex-Cr2B2O2 exhibit even higher COOR catalytic activity than Pt-CeO2 and Au-CeO2 and can be directly applied as COOR catalysts. The formation energy of oxygen vacancies is identified as a descriptor for COOR catalytic activity, reducing the computational cost during catalyst screening.
Article
Polymer Science
Marc Martinez de Sarasa Buchaca, Felipe de la Cruz-Martinez, Enrique Frances-Poveda, Juan Fernandez-Baeza, Luis F. Sanchez-Barba, Andres Garces, Jose A. Castro-Osma, Agustin Lara-Sanchez
Summary: In this study, nonisocyanate polyurethane materials with pending alcohol groups in the polymeric chain were synthesized by polyaddition reaction, and the reactions under different conditions were explored and characterized.
Article
Chemistry, Multidisciplinary
Juan Catala, Maria P. Caballero, Felipe de la Cruz-Martinez, Juan Tejeda, Jose A. Castro-Osma, Agustin Lara-Sanchez, Jesus Manuel Garcia-Vargas, Maria Teresa Garcia, Maria Jesus Ramos, Ignacio Gracia, Juan Francisco Rodriguez
Summary: The production of cyclic carbonates from epoxidized vegetable oils allows for the introduction of CO2 into renewable and highly functional resources, resulting in high-value products that can serve as precursors for chemicals such as non-isocyanate polyurethanes (NIPUs). The use of supercritical CO2 as the reaction medium improves yields and eliminates the need for organic solvents. The study focuses on the carbonation of triglycerides using a new class of bifunctional imidazole-based catalysts and quaternary ammonium salts. By optimizing the operating conditions and comparing reaction performance, the kinetic rate of ESBO supercritical carbonation was found to be the highest at 120℃, 125 bar of CO2 pressure, and a 7.5 mol% IOC catalyst ratio.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Applied
Jorge Leal, Gema Dura, Felix A. Jalon, Elisenda Zafon, Anna Massaguer, Jose Vicente Cuevas, Lucia Santos, Ana M. Rodriguez, Blanca R. Manzano
Summary: Luminescent platinum cyclometalated complexes have applications in optoelectronic and biological fields, especially in anticancer activity. A series of these complexes with different ligands were synthesized, and their emission wavelengths could be tuned. Density-functional theory provided descriptions of their molecular orbital characteristics, and time-dependent DFT calculations showed different excited states for different complexes. Biological studies demonstrated that some complexes exhibited cytotoxic activity against human cervical and lung carcinoma cells, and microscopy assays showed their accumulation in cytoplasmic organelles. The disruption of mitochondrial metabolism was observed, leading to a decrease in cellular ATP content. These complexes may have potential as alternative anticancer drugs.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Biomaterials
Felipe de la Cruz-Martinez, Roger Bresoli-Obach, Ivan Bravo, Carlos Alonso-Moreno, Daniel Hermida-Merino, Johan Hofkens, Agustin Lara-Sanchez, Jose A. Castro-Osma, Cristina Martin
Summary: Population growth, resource depletion, and toxic chemical production underscore the importance of exploring new smart materials that are inexpensive, biodegradable, and renewable. Metal-free ring-opening copolymerization of biomass carvone-based monomers is considered a sustainable approach to achieve these goals, especially in the production of non-conventional luminescent biopolymers.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Biochemistry & Molecular Biology
Carlos Tardio, Javier Alvarez Conde, Ana Maria Rodriguez, Pilar Prieto, Antonio de la Hoz, Juan Cabanillas-Gonzalez, Ivan Torres-Moya
Summary: A new series of donor-acceptor-donor (D-A-D) structures derived from arylethynyl 1H-benzo[d]imidazole were synthesized and processed into single crystals to test their ability to act as optical waveguides. Some crystals exhibited luminescence in the 550-600 nm range and showed optical waveguiding behavior with low optical loss coefficients, indicating efficient light transport. The 1H-benzo[d]imidazole derivatives with 1D assembly, single crystal structure, and notable light emission properties are promising compounds for optical waveguide applications.
Article
Immunology
Syong H. Nam-Cha, Elena Dominguez-Jurado, Selena L. Tinoco-Valencia, Ramon Perez-Tanoira, Noelia Morata-Moreno, Rocio Alfaro-Ruiza, Agustin Lara-Sanchez, Jaime Esteban, Rafael Lujan, Carlos Alonso-Moreno, Pedro Segui, Alberto Ocana, Angel Lopez Gonzalez, John J. Aguilera-Correa, Francisco C. Perez-Martinez, Milagros Molina Alarcon
Summary: This study aimed to translate clinical research outcomes based on metallodrugs into clinical practice for the treatment of MRSA. The novel metallodrug 2P-Pt showed antibacterial effect against MRSA and inhibited biofilm formation. These findings suggest that 2P-Pt may be a promising therapeutic alternative for MRSA infections.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Borja Diaz de Grenu, Diego M. Fernandez-Aroca, Juan A. Organero, Gema Dura, Felix Angel Jalon, Ricardo Sanchez-Prieto, M. Jose Ruiz-Hidalgo, Ana Maria Rodriguez, Lucia Santos, Jose L. Albasanz, Blanca R. Manzano
Summary: Compound 6, a new derivative of aromatase inhibitors, exhibits higher inhibitory activity and potent cytostatic behavior compared to established inhibitors, making it a promising candidate for hormone-dependent cancer treatment.
JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Marta Navarro, Andres Garces, Luis F. Sanchez-Barba, David Gonzalez-Lizana, Agustin Lara-Sanchez
Summary: The fixation of CO2 into cyclic carbonates is important for the synthesis of organic molecules of industrial interest. In this study, zinc-based complexes with sterically demanding scorpionate ligands were prepared and used as catalysts for CO2 fixation. These complexes, in combination with larger ionic radius-based co-catalysts, showed high activity and selectivity for the conversion of CO2 into cyclic carbonates. The systems developed in this study are sustainable, inexpensive, and environmentally friendly.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Marc Martinez de Sarasa Buchaca, Felipe de la Cruz-Martinez, Luis F. F. Sanchez-Barba, Juan Tejeda, Ana M. M. Rodriguez, Jose A. Castro-Osma, Agustin Lara-Sanchez
Summary: Ring-opening copolymerization reactions of epoxides, carbon dioxide and cyclic esters using bimetallic chloride indium complexes as catalysts were conducted under mild reaction conditions. The catalysts exhibited high catalytic activity and selectivity in the absence of a co-catalyst, leading to the formation of poly(cyclohexene carbonate) (PCHC). Furthermore, polyester-polycarbonate copolymers poly(lactide-co-cyclohexene carbonate) (PLA-co-PCHC) were synthesized via a one-pot one-step route without the use of a co-catalyst. The copolymers showed different thermal properties by adjusting the CO2 pressure and monomer feed.
DALTON TRANSACTIONS
(2023)
Article
Oncology
M. Isabel Acuna, Ana R. Rubio, Marta Martinez-Alonso, Natalia Busto, Ana Maria Rodriguez, Nerea Davila-Ferreira, Carl Smythe, Gustavo Espino, Begona Garcia, Fernando Dominguez
Summary: Iridium complexes have potential as cancer drug candidates due to their structural versatility and ability to target mitochondria. The most promising complex, 1[C,NH], induces cell death by disrupting mitochondria membrane permeability. In vivo studies in mice showed reduced tumor burden. These findings could guide the development of next-generation anticancer drugs.
