Article
Chemistry, Inorganic & Nuclear
Frank Czerny, Keith Searles, Petr Sot, Johannes F. Teichert, Prashanth W. Menezes, Christophe Coperet, Matthias Driess
Summary: There is a growing interest in using earth-abundant nonprecious metals to replace expensive precious metal catalysts. A well-defined supported nickel hydrogenation catalyst was synthesized using surface organometallic chemistry and immobilized on silica. This immobilized catalyst can catalyze alkenes and alkynes at low temperatures without prior activation.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ken-ichi Yamashita, Shouichi Takeuchi, Ken-ichi Sugiura
Summary: In this study, meso-aminodiarylporphyrin was oxidatively oligomerized to yield stable oligomers with properties similar to fully oxidized polyanilines. The oligomers consisted of electron-rich porphyrinoid and electron-deficient quinoid moieties, exhibiting a broad electronic absorption band in the near infrared region. Fully reduced oligomers resembling reduced polyanilines and partially reduced tetramers were also obtained.
Article
Chemistry, Physical
Timothy A. Goetjen, Julia G. Knapp, Zoha H. Syed, Ryan A. Hackler, Xuan Zhang, Massimiliano Delferro, Joseph T. Hupp, Omar K. Farha
Summary: The inherent crystallinity of metal-organic framework (MOF) catalysts allows for the understanding of the active site structure at the molecular level. This study demonstrates the competence of a MOF-supported Cr3+ catalyst for ethylene polymerization, resulting in crystalline linear polyethylene with low polydispersity. Single crystal X-ray diffraction analysis provides insight into the interaction between the co-catalyst and the active site of the pre-catalyst, offering the opportunity for the study of a structurally well-defined olefin polymerization system. This research contributes to the development of next-generation heterogeneous catalyst systems.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Eathen O. Ryan, Zhoumai Jiang, Hoa Nguyen, Xu Wang
Summary: This study investigated the interaction between PTN and heparin hexasaccharide using NMR and found that PTN's arginines, lysines, and tryptophans have strong interactions with the 2-O-sulfated uronate protons in heparin hexasaccharide.
Review
Chemistry, Multidisciplinary
Haocheng Zhang, Tianxiao Jiang, Jingyun Zhang, Hanmin Huang
Summary: The organic chemistry community is actively studying methods to introduce nitrogen-containing moieties into feedstock molecules to build nitrogenated functional molecules. Significant progress has been made in transition metal-catalyzed C-N bond-forming reactions, but the poisoning effect of electron-donating amine substrates presents a key impediment. Development of a palladium-aminomethyl complex has shown promising results in overcoming this challenge.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Review
Chemistry, Applied
Jonathan Martinez-Laguna, Ana Caballero, Pedro J. Perez
Summary: The review explores the use of graphenic materials as supports for transition metal-based catalysts in reactions involving the functionalization of carbon-hydrogen bonds, with reported catalytic activities comparable or better than homogeneous counterparts, enhancing the recyclability of the materials.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Wenhao Yan, Samantha Carter, Chi-Tien Hsieh, Jeanette A. Krause, Mu-Jeng Cheng, Shiyu Zhang, Wei Liu
Summary: This study reports the synthesis and investigation of alkyl-Cu-III complexes, and reveals their reactivity in generating alkyl radicals and Cu(II) species through a Cu-C homolysis pathway. The results provide support for the reversible recombination of alkyl radicals with Cu-II, and also demonstrate that the reactivity of Cu-III complexes can be significantly influenced by subtle changes in the coordination environment. Furthermore, the observation of highly reactive alkyl-Cu-III-(CF3)(2) species suggests their potential role as true intermediates in many Cu-catalyzed trifluoromethylation reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Construction & Building Technology
Mateusz Malus, Joanna Bojda, Maciej Sienkiewicz, Miloud Bouyahyi, Lanti Yang, Francisco Javier Navarro, Maria Soliman, Rob Duchateau, Lidia Jasinska-Walc
Summary: In this study, hydroxyl-functionalized propylene-based copolymers (FPP) and styrene-maleic anhydride (SMA) graft copolymers (FPP-g-SMA) were applied as bitumen modifiers. FPP samples were synthesized through solution copolymerization, while FPP-g-SMA products were obtained via transesterification of FPP with SMA either in solution or by a melt-grafting process. Solution-prepared FPP-g-SMA modifiers with around 30 wt% SMA content showed excellent compatibility with bitumen, resulting in polymer-modified compositions with uniform morphology and improved nanomechanical properties, storage stability, rheological properties, and high-temperature performance compared to neat bitumen samples.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Georgia R. F. Orton, Ben S. Pilgrim, Neil R. Champness
Summary: The article examines developments in confining phosphines within micro- or nano-environments and how this affects their behavior and that of their metal complexes. Examples of using MOFs or MOCs to support phosphines show how the microenvironment leads to reactivity modification. The review highlights challenges in this area and identifies new research avenues.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Alexandre Genoux, Magnus Pauly, Conor L. Rooney, Chungseok Choi, Bo Shang, Scott McGuigan, Majed S. Fataftah, Yves Kayser, Simon C. B. Suhr, Serena Debeer, Hailiang Wang, Paul A. Maggard, Patrick L. Holland
Summary: Carbon nitride materials with stoichiometric iron sites having the same environment were synthesized and characterized. The material showed tetrahedral high-spin iron(II) sites throughout and exhibited excellent electrocatalytic activity for nitrate reduction to ammonia.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Inorganic & Nuclear
He Liu, Qilong Shen
Summary: This review provides a summary of the preparation and characterization of various types of copper(III) complexes, as well as the discussion on their reactivities and reaction mechanisms.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Physical
Ehsan Shakeri, Janet Blumel
Summary: An improved method for covalently binding phosphine linkers to silica surfaces has been developed, resulting in well-defined sub-monolayers of linkers. This method overcomes issues such as pore clogging and metal agglomeration, leading to more active and selective catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Hien The Ho, Trang N. T. Phan, Marine Bonnevide, Nicolas Malicki, Marc Couty, Jacques Jestin, Didier Gigmes
Summary: The study presents the synthesis of a new nitroxide-mediated polymerization (NMP) initiator with a photolabile ortho-nitrobenzyl (oNB) group for surface-initiated NMP preparation of well-defined photoresponsive polystyrene grafted on silica nanoparticles. The photocleavable and photoresponsive properties of the materials were demonstrated using small angle X-ray scattering (SAXS) characterization.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Shangqing Xie, Yanhong Dong, Xinyu Du, Qingqing Fan, Haiquan Yang, Xiaoyan Li, Hongjian Sun, Olaf Fuhr, Dieter Fenske
Summary: A solvent-free cobalt-catalyzed highly selective hydrosilylation of alkenes has been developed using Co(PMe3)4 and CoCI(PMe3)3 as catalysts. The former promotes Markovnikov-type hydrosilylation of aryl alkenes, while the latter catalyzes anti-Markovnikov-type hydrosilylation of alkyl alkenes. These two catalytic systems exhibit good tolerance towards various functional groups, providing high selectivity and medium to high yield.
Article
Chemistry, Multidisciplinary
Ru-Jin Li, Adam Marcus, Farzaneh Fadaei-Tirani, Kay Severin
Summary: Tetra- and hexanuclear coordination cages were obtained by reacting [Pd(CH3CN)(4)](BF4)(2) with low-symmetry dipyridyl ligands, resulting in the formation of a single structurally defined complex among many potential isomers.
CHEMICAL COMMUNICATIONS
(2021)
Review
Chemistry, Physical
Jing Xia Qian, Tian Wen Chen, Linga Reddy Enakonda, Da Bin Liu, Jean-Marie Basset, Lu Zhou
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Yuanyuan Yue, Jing Fu, Chuanming Wang, Pei Yuan, Xiaojun Bao, Zailai Xie, Jean-Marie Basset, Haibo Zhu
Summary: The gap between supply and demand for propylene is increasing, and propane dehydrogenation (PDH) with Lewis acid sites has been identified as an effective alternative for propylene production. The Sn-Beta zeolite catalyst showed high catalytic performance in PDH, with a positive correlation between dehydrogenation rate/cracking rate and the Lewis/Bronsted ratio. The Na-Sn-Beta-30 catalyst exhibited the best performance in PDH, delivering high propane conversion and propylene selectivity. The Sn-Beta zeolites are extremely stable and have potential for development as a new generation of PDH catalysts for propylene production.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Walid Al Maksoud, Rohit K. Rai, Natalia Morlanes, Moussab Harb, Rafia Ahmad, Samy Ould-Chikh, Dalaver Anjum, Mohamed N. Hedhili, Bedour E. Al-Sabban, Khalid Albahily, Luigi Cavallo, Jean-Marie Basset
Summary: The new catalyst for ammonia synthesis shows promising activity and stability, with nano-sized core-shell structures formed during H-2 treatment. Alkali metals enhance the catalytic activity, with potassium (K) exhibiting the highest activity among the tested alkali metals.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Sang-Ho Chung, Adrian Ramirez, Tuiana Shoinkhorova, Ildar Mukhambetov, Edy Abou-Hamad, Selevedin Telalovic, Jorge Gascon, Javier Ruiz-Martinez
Summary: The Lebedev process involves converting ethanol to butadiene catalytically, with silica-magnesia being a key catalyst for this process. Different preparation methods impact the performance of the catalyst, with wet-kneading resulting in the formation of surface magnesium silicates. The calcination temperature plays a significant role in determining the type of magnesium silicates formed, which in turn affects the catalytic properties and product formation.
Article
Chemistry, Inorganic & Nuclear
Badriah J. Alamer, Megalamane S. Bootharaju, Sergey M. Kozlov, Zhen Cao, Aleksander Shkurenko, Saidkhodzha Nematulloev, Partha Maity, Omar F. Mohammed, Mohamed Eddaoudi, Luigi Cavallo, Jean-Marie Basset, Osman M. Bakr
Summary: A novel synthesis strategy was developed to produce the smallest crystallized Ag NC to date, with a unique structure and shape. Experimental and computational studies confirmed the distinctive optical properties and molecular orbitals responsible for electronic transitions of the NC. These findings will pave the way for the design of novel metal NCs with directional self-assembled building blocks.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Manoja K. Samantaray, Sandeep K. Mishra, Aya Saidi, Jean-Marie Basset
Summary: Surface organometallic chemistry (SOMC) is an established concept used for characterizing well-defined single-site catalysts. Surface organometallic catalyst (SOMCcat) was developed to overcome the limitations of heterogeneous catalysts. By grafting homogeneous catalysts onto oxide supports, SOMCcat with fully active sites can be achieved.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Luis Miguel Azofra, Luigi Cavallo, Jean-Marie Basset, Moussab Harb
Summary: This study investigated the influence of different facets of α-SnWO4 material on oxygen and hydrogen evolution reactions using hybrid density functional theory. It was found that the (110) facet is the best candidate for oxygen evolution reaction, while the (100) facet is the best candidate for hydrogen evolution reaction. Analysis of the reaction mechanism on the (110) facet showed promising electrocatalytic water oxidation performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Wiebke Wackerow, Zeynabou Thiam, Edy Abou-Hamad, Walid Al Maksoud, Mohamed N. Hedhili, Jean-Marie Basset
Summary: The article discusses the unique catalytic properties of tungsten-hydrides supported on oxide supports, suggesting that supported tungsten-hydride complexes coexist on the support as bis-hydride and tris-hydride species.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Green & Sustainable Science & Technology
Jing Xia Qian, Da Bin Liu, Jean Marie Basset, Lu Zhou
Summary: In this study, iron-containing materials from natural, industrial raw materials, by-products or wastes were investigated as catalysts for methane decomposition. The Fe2O3 species on these materials were found to be gradually reduced by methane to active Fe-0 species, which led to the formation of carbon nano-materials. The optimized reaction conditions for the highest carbon/hydrogen yield were determined to be 900 degrees C and 3 L/g(cat).h.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Rohit K. Rai, Walid Al Maksoud, Natalia Morlanes, Moussab Harb, Rafia Ahmad, Alessandro Genovese, Mohamed N. Hedhili, Luigi Cavallo, Jean-Marie Basset
Summary: Introducing cobalt into iron catalysts significantly enhances the efficiency of ammonia synthesis, especially exhibiting excellent activity at low temperatures. The study reveals a tuning effect on the surface of the catalyst by introducing cobalt, weakening NHx retarding species and making the iron sites more favorable for N-2 activation.
Article
Multidisciplinary Sciences
Stefan Chisca, Valentina-Elena Musteata, Wen Zhang, Serhii Vasylevskyi, Gheorghe Falca, Edy Abou-Hamad, Abdul-Hamid Emwas, Mustafa Altunkaya, Suzana P. Nunes
Summary: This study presents a versatile strategy for fabricating polytriazole membranes with subnanometer channels and 10-nanometer-thin selective layers, which can be tuned for different applications. These membranes exhibit excellent selectivity and are capable of efficiently separating low-carbon hydrocarbon components.
Article
Nanoscience & Nanotechnology
Qiankun Hou, Kang Liu, Walid Al-Maksoud, Yuchang Huang, De Ding, Yongpeng Lei, Yi Zhang, Bin Lin, Lirong Zheng, Min Liu, Jean-Marie Basset, Yin Chen
Summary: Nonprecious-metal heterogeneous catalysts with atomically dispersed active sites have shown high activity and selectivity in various reactions, but their rational design and large-scale synthesis pose a significant challenge. Current approaches involve high temperatures and tedious procedures. In this study, a straightforward and scalable strategy was demonstrated for synthesizing atomically dispersed Ni electrocatalysts in a large quantity with high yield, using two simple steps under mild conditions. The resulting catalyst exhibits excellent catalytic performance in both oxygen evolution and reduction reactions, with tunable activity, high reproducibility, and stability. The strategy provides a practical and green method for the industrial manufacturing of nonprecious-metal single-site catalysts with predictable structures.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Lujain Alrais, Walid Al Maksoud, Baraa Werghi, Anissa Bendjeriou-Sedjerari, Edy Abou-Hamad, Mohamed N. Hedhili, Jean-Marie Basset
Summary: The synthesis of heterogeneous Ti(iv)-based catalysts for ethylene polymerization according to the concepts of surface organometallic chemistry is described. These catalysts utilize a unique silica support with a 3D fibrous morphology and an aluminum-bound hydroxyl group. The combination of morphological and electronic properties of the support leads to enhanced catalytic performance in ethylene polymerization, resulting in the formation of high-density polyethylene.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Alexey Pustovarenko, Beatriz Seoane, Edy Abou-Hamad, Helen E. King, Bert M. Weckhuysen, Freek Kapteijn, Jorge Gascon
Summary: 3D printing technology has expanded significantly in various sectors, replacing traditional manufacturing methods by combining processing speed and high precision to create solid structures with customized shapes and predetermined properties. This technology can be effectively adapted for MOF-based mixed matrix membrane fabrication for gas separation applications. The use of DLP approach in fast prototyping of MOF-based MMMs allows for full control over the resulting composite, providing new opportunities for further development.
MATERIALS ADVANCES
(2021)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
