Article
Chemistry, Inorganic & Nuclear
Yan-Bing Wang, Chenlong Nan, Weize Zhuo, Chen Zou, Hui Jiang, Xin-Qi Hao, Changle Chen, Mao-Ping Song
Summary: The introduction of O-donor groups on amine-imine ligands leads to the synthesis of a series of nickel complexes, which exhibit high catalytic activities and produce polyethylene elastomers with high molecular weight. Moreover, these nickel complexes can also catalyze the copolymerization of ethylene with various functional monomers to prepare functionalized polyolefins.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Louis Le Moigne, Tommaso Posenato, David Gajan, Jennifer Lesage de la Haye, Jean Raynaud, Emmanuel Lacote
Summary: Amine-borane dimers and oligomers were synthesized via capping agent-controlled polycondensation, and they exhibited excellent catalytic performance in transfer hydrogenation reactions. The oligomers with amine-borane Lewis pairs and congested bis(amine-borane) showed the highest yields. Solid-state NMR characterization revealed that the boron-containing materials obtained from transfer dehydrogenation were similar to those obtained from thermal dehydrogenation.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Multidisciplinary Sciences
Gang Ji, Zhou Chen, Xiao-Yan Wang, Xiao-Shan Ning, Chong-Jie Xu, Xing-Min Zhang, Wen-Jie Tao, Jun-Fang Li, Yanshan Gao, Qi Shen, Xiu-Li Sun, Hao-Yang Wang, Jun-Bo Zhao, Bo Zhang, Yin-Long Guo, Yanan Zhao, Jiajie Sun, Yi Luo, Yong Tang
Summary: The study presents a method for copolymerizing ethylene with protic monomers using multinuclear nickel catalysts, enabling functionalized polyolefins. Efficient direct copolymerization of ethylene with vinyl acetic acid by tetranuclear nickel complexes is achieved, with potential extension to other protic monomers. Insights from the study have led to the design of binuclear nickel catalysts that show high efficiency in copolymerization of ethylene with vinyl acetic acid or acrylic acid.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Jia-Jun Wu, Bo Deng, Jia-Hong Hou, Xin-Yue Huang, Hui-Yi Tang, Kai-Ti Wang
Summary: Four asymmetric a-diimine dibromide nickel(II) complexes were synthesized and characterized. These complexes showed high activities toward norbornene (NBE) homopolymerization and efficiently promoted the copolymerization of NBE with n-butyl methacrylate (n-BMA) and di(n-butyl) itaconate (n-DBI), resulting in high molecular weight polymers and copolymers with improved solubilities and thermal stability.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Samira Zafarnak, Ali Bakhtyari, Hamed Taghvaei, Mohammad Reza Rahimpour, Adolfo Iulianelli
Summary: This study evaluates the carbon-dioxide-assisted dehydrogenation over alumina-supported catalysts, with particular focus on the performance of cobalt and molybdenum oxide catalysts in ethylene production. Time on steam effect on catalyst performance was also investigated.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Ali Bakhtyari, Samira Zafarnak, Hamed Taghvaei, Mohammad Reza Rahimpour, Adolfo Iulianelli
Summary: The demand for hydrogen and olefins production has driven the exploration of new and multipurpose processes, with a focus on utilizing carbon dioxide emissions. This study examines the carbon-dioxide-assisted conversion of ethane to ethylene and hydrogen over alumina-supported cobalt-molybdenum catalysts. The highest initial conversions and hydrogen yield were achieved at 700℃ and GHSV = 2250 Lreactant/kgcatalyst.hr.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Physical
Zhenzhen Wang, Shipan Liang, Xiaoyan Meng, Shanjun Mao, Xu Lian, Yong Wang
Summary: The role of mass transport for bubble generation reaction in FA dehydrogenation has been overlooked for a long time, limiting the TOF values of most catalysts to less than 1000 h(-1). By proposing a design principle of efficient catalyst with synergism of highly active catalytic components and developed porous structure for effective mass transport, a Pd60Au40/HPC-NH2 catalyst with ultrasmall nanoparticles has been developed, exhibiting TOF values up to 3763 h(-1) at room temperature and 29,210 h(-1) at 323 K.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Neil A. Dodd, Yu Cao, John Bacsa, Eric C. Towles, Thomas G. Gray, Joseph P. Sadighi
Summary: An (N-heterocyclic carbene)nickel(I) cation precursor reacts with the corresponding nickel(0) complex to form a dinickel(I,0) monocation. The Ni···Ni distance in this cation is 0.93 angstrom shorter than in the analogous dinickel(0) complex. Density functional theory calculations indicate significant electronic localization despite equivalent Ni centers in the solid-state structure. Reactions with CO and NO form mononuclear carbonyl and nitrosyl complexes, while oxidative addition of an aryl bromide results in C-arylation of the carbene ligands.
INORGANIC CHEMISTRY
(2022)
Article
Polymer Science
Zhengpeng Yan, Guanru Chang, Wenping Zou, Gen Luo, Shengyu Dai
Summary: In this study, a series of benzocyclohexyl alpha-diimine Ni(ii) complexes were synthesized to obtain lightly branched and ultrahigh-molecular-weight polyethylenes. These complexes exhibited high activities in ethylene polymerization and resulted in polyethylenes with good mechanical properties.
Article
Chemistry, Multidisciplinary
Dan Peng, Changle Chen
Summary: In this study, azobenzene functionalities were introduced into olefin polymerization catalysts, allowing for properties modulation via light-induced trans-cis isomerization. The researched catalysts demonstrated light-induced control over polymerization processes, structures, and properties. The property changes were attributed to ligand electronic effects in one system and ligand steric effects in the other.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
You Ge, Shuaikang Li, Weigang Fan, Shengyu Dai
Summary: In this study, novel α-diiminenickel and -palladium complexes containing flexible 8-alkylnaphthyl were investigated for their catalytic performance in ethylene polymerization. The nickel complexes displayed high activity and generated branched polyethylenes with broad or bimodal molecular weight distributions, while the palladium complexes showed moderate activity, producing highly branched polyethylenes with narrow molecular weight distributions. Additionally, the palladium complexes achieved highly branched E-MA copolymers with considerable MA incorporations, indicating their potential in copolymerization reactions. Compared to their rigid 8-arylnaphthyl counterparts, the flexible 8-alkylnaphthyl complexes exhibited significantly improved activity and produced lower or comparable molecular weight polyethylenes or E-MA copolymers.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Natalija Pantalon Juraj, Tana Tandaric, Vanja Tadic, Berislav Peric, Dominik Moreth, Ulrich Schatzschneider, Anamaria Brozovic, Robert Vianello, Srecko Kirin
Summary: In this study, the coordination properties of ligands were investigated by modifying their side chain structure. The results showed that the length of the aliphatic linker, isomers of the amide group, and the type of chiral terminal group all had an impact on the coordination properties. Additionally, DFT calculations provided insights into the stability of isomers and the potential hydrogen bonding between ligands in a ML2 complex.
DALTON TRANSACTIONS
(2022)
Article
Polymer Science
Oldrich Kotyza, Olga Kockova, Jan Merna
Summary: This article describes a method for chain-end functionalization of branched polyolefins obtained by living olefin polymerization initiated by alpha-diimine nickel catalysts. The method involves the transmetalation of living polymer chains from nickel growing centers to excess organozinc, organomagnesium, or organoaluminum transfer agents, followed by oxidation. Hydroxy-terminated polyolefins were obtained with efficiencies ranging from 25% to 99%.
Article
Engineering, Environmental
Emad N. Al-Shafei, D. Robert Brown, Sai P. Katikaneni, Hameed Al-Badairy, Oki Muraza
Summary: The study investigated propane dehydrogenation assisted by CO2 using zirconia and titania catalysts. The increase of CO2 ratio led to higher propylene selectivity, while increasing the CO/H-2 ratio was important for olefins yield and catalytic stability. The presence of CO2 played an important role in enhancing propane dehydrogenation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Inorganic & Nuclear
Mengyin Xu, Yang Wang, Yifeng Zhou, Zi-Jian Yao
Summary: Five N, N-chelate nickel (II) complexes with N-(2-pyridinylmethylene)-benzylamine ligands bearing different substituent groups were successfully synthesized in good yields. These nickel complexes exhibited remarkable catalytic efficiency in the synthesis of amines, producing various substituted amines in moderate to excellent yields through two catalytic systems.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Flip Holtrop, Christoph Helling, Martin Lutz, Nicolaas P. van Leest, Bas de Bruin, J. Chris Slootweg
Summary: We present a combined theoretical and experimental investigation on the potential isolation of an encounter complex enabled by enhancement of London dispersion forces between a sterically encumbered Lewis acid and base pair. The study involved the bulky triarylamine N(3,5-tBu(2)C(6)H(3))(3) and the novel triarylborane B(3,5-tBu(2)C(6)H(3))(3), leading to the isolation of a 1:1 co-crystal of both FLP components.
Article
Chemistry, Multidisciplinary
Minghui Zhou, Simon Mathew, Bas de Bruin
Summary: A new T-type molecular photoswitch based on the reversible cyclization of 1H-2-benzo[c]oxocins has been developed. The switching mechanism involves light-triggered ring contraction and thermal ring-opening processes. The new molecular-switching platform exhibits independence from solvent polarity and is suitable for biological applications. The reactions proceed with good efficiency and can be easily adjusted via structural functionalization.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Soumyadeep Chakrabortty, Katharina Konieczny, Felix J. de Zwart, Eduard. O. Bobylev, Eszter Barath, Sergey Tin, Bernd H. Mueller, Joost N. H. Reek, Bas de Bruin, Johannes G. de Vries
Summary: Researchers achieved enantioselective hydrogenation of cyclic enamides using an earth-abundant cobalt-bisphosphine catalyst. The catalytic system, CoCl2/(S,S)-Ph-BPE, reduced trisubstituted carbocyclic enamides to saturated amides with high activity and excellent enantioselectivity (up to 99%). The methodology can be extended to the synthesis of chiral amines by base hydrolysis of the hydrogenation products. Preliminary mechanistic investigations suggested a sigma-bond-metathesis pathway for the hydrogenation of the carbon-carbon double bond, involving a high spin cobalt (II) species.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Catriona C. James, Petrus C. M. Laan, Bas de Bruin, Joost N. H. Reek
Summary: Olefin metathesis catalysts, such as AquaMet, are susceptible to decomposition under biologically relevant conditions. Current stabilizing strategies have limited applicability under these conditions. Encapsulation of AquaMet within a supramolecular metallocage, with nitrate counterions, enhances the catalyst activity. Replacement of AquaMet's chloride ligands with nitrates through simple anion-exchange leads to higher yields of ring-closed product under aqueous and biological conditions. This kinetic protection strategy of transition metal catalysts may find applications in other in vivo catalytic reactions.
Article
Chemistry, Multidisciplinary
Demi D. Snabilie, Eva J. Meeus, Roel F. J. Epping, Zhiyuan He, Minghui Zhou, Bas de Bruin
Summary: Transition metal radical-type carbene transfer catalysis is a sustainable and atom-efficient method for C-C bond formation. Understanding off-cycle and deactivation pathways can lead to solutions for avoiding catalyst deactivation and reveal novel reactivity for new applications, stimulating further development of radical-type carbene transfer reactions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
David A. Poole III, Eduard O. Bobylev, Bas de Bruin, Simon Mathew, Joost N. H. Reek
Summary: This article investigates the self-assembly of spherical three-dimensional (3D) cages composed of palladium(II) and pyridyl ligands. The self-assembly process is found to be sensitive to the solvents, reagents, and/or reactants used, which hinders the development of desired palladium-based cages. The study reveals that ligand substitution can be facilitated by endogenous supporting ligands derived from the solvents, reagents, and reactants.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Roel F. J. Epping, David Vesseur, Minghui Zhou, Bas de Bruin
Summary: Discovered in the 1970s as organometallic curiosities, carbene radicals have become essential in modern homogeneous catalysis. These radicals exhibit nucleophilic reactivity different from electrophilic Fischer carbenes. The successful catalytic application of carbene radicals has led to the synthesis of diverse carbon and heterocyclic compounds. This Perspective provides an overview of the coordination chemistry, reactivity, and catalytic application of carbene radicals using transition metal complexes and catalysts since 2011.
Article
Chemistry, Physical
Petrus C. M. Laan, Felix J. de Zwart, Emma M. Wilson, Alessandro Troglia, Olivier C. M. Lugier, Norbert J. Geels, Roland Bliem, Joost N. H. Reek, Bas de Bruin, Gadi Rothenberg, Ning Yan
Summary: In this study, the reactivity and selectivity of two forms of NiOOH (beta-NiOOH and gamma-NiOOH) were examined using three typical alcohols as model reactions. The results showed that the solvent had an effect on the reaction rate of beta-NiOOH but not on its selectivity. Moreover, high concentrations of OH(-) in aqueous solvent promoted the conversion of benzyl alcohol to benzoic acid. The mechanism of oxidative dehydrogenation of benzyl alcohol to benzaldehyde was also elucidated. This work highlights the unique oxidative and catalytic properties of NiOOH in alcohol oxidation reactions and contributes to the mechanistic understanding of electrochemical alcohol conversion using NiOOH-based electrodes.
Article
Chemistry, Multidisciplinary
Jasper Biemolt, Eva J. Meeus, Felix J. de Zwart, Jeen de Graaf, Petrus C. M. Laan, Bas de Bruin, Thomas Burdyny, Gadi Rothenberg, Ning Yan
Summary: Immobilizing molecular catalysts on electrodes is crucial for electrochemical applications. The study demonstrates a bottom-up approach for constructing a conjugated C-C bond between the Vulcan carbon electrode and an organometallic catalyst without introducing any foreign elements. The synthesized catalyst exhibits high activity and selectivity for the oxygen reduction reaction compared to the homogeneous counterpart, making it a promising candidate for electrochemical applications.
Article
Chemistry, Inorganic & Nuclear
Frederik Rummel, Frerk Wehmeyer, Matthias Vogt, Robert Langer
Summary: The SNS-type pincer complex [({EtSCH2CH2}(2)NH)RuCl(H)(PPh3)] (2) exists in three different diastereomers (2 a-c), with a difference in the relative orientation of the EtS-groups observed in the molecular structures obtained from single crystal X-Ray diffraction studies. Chemical exchange between the three diastereomers 2 a-c was discovered and quantified using phase-sensitive H-1 and P-31 NOESY NMR spectroscopy. The results suggest an inversion of the ligating sulfur atoms, with a dissociative pathway also potentially playing a role in the configurational inversion.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Subrata Das, Andreas W. Ehlers, Sima Patra, Bas de Bruin, Buddhadeb Chattopadhyay
Summary: A concept for intermolecular C-N cross-coupling amination has been discovered using tetrazoles and aromatic and aliphatic azides with boronic acids under iron-catalyzed conditions. The reaction follows an unprecedented metalloradical activation mechanism, different from traditional metal-catalyzed C-N cross-coupling reactions. The wide scope of this reaction has been demonstrated by employing various tetrazoles, azides, and boronic acids. Moreover, the reaction has shown potential for applications in medicinal chemistry, drug discovery, and pharmaceutical industries, as demonstrated by late-stage aminations and synthesis of a drug candidate.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Jianghua Liu, Eduard O. Bobylev, Bas de Bruin, Joost N. H. Reek
Summary: This article reports on a gold catalyst based on azobenzene-bearing N-heterocyclic carbene, whose reactivity in a cyclization reaction is dependent on the isomeric state of the azobenzene. The configurations of the catalyst can be reversibly switched by light and remain stable during the reaction, effectively leading to a switchable catalyst system.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Eduard O. Bobylev, Renzo A. Knol, Simon Mathew, I. I. I. David A. Poole, Ioli Kotsogianni, Nathaniel I. Martin, Bas de Bruin, Alexander Kros, Joost N. H. Reek
Summary: There is a growing interest in using metal-organic cages (MOCs) in the field of biomedicine due to their unique distribution in organisms and novel cytotoxicity mechanisms. However, the stability of many MOCs under in vivo conditions hinders their study in living cells. In this study, the toxicity and photophysical properties of stable rhodamine-functionalized platinum-based Pt2L4 nanospheres and their building blocks are investigated in vitro and in vivo. The results show that the Pt2L4 nanospheres exhibit reduced cytotoxicity and altered biodistribution compared to the building blocks in zebrafish and human cancer cell lines. These findings provide a basis for the application of MOCs in cancer therapy.
Article
Chemistry, Multidisciplinary
Eva J. Meeus, Nico V. Igareta, Iori Morita, Thomas R. Ward, Bas de Bruin, Joost N. H. Reek
Summary: This study demonstrates that the incorporation of a biotinylated Co(TAML) cofactor within streptavidin enhances the activity and enantioselectivity of asymmetric radical-type oxygen atom transfer catalysis.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Eduard. O. Bobylev, Leonardo Passerini, Felix J. de Zwart, David A. Poole, Simon Mathew, Martina Huber, Bas de Bruin, Joost N. H. Reek
Summary: In this study, a post-assembly modification approach is described to selectively coordinate transition metals in Pd12L24 cuboctahedra. The method involves the preparation of Pd12L24 nanospheres with protonated nitrogen donor ligands that are covalently linked at the interior. Selective formation of different coordination forms of the transition metals is achieved by using different nitrogen donor ligands. Experimental and computational investigations support the presence of complexes at precise locations in the nanospheres.
Article
Chemistry, Multidisciplinary
Alexander M. Prophet, Kritanjan Polley, Gary J. Van Berkel, David T. Limmer, Kevin R. Wilson
Summary: The oxidation kinetics of iodide by ozone at the air-water interface is studied in single microdroplets. Molecular simulations and kinetic modeling are used to understand the underlying multiphase mechanism.
Article
Chemistry, Multidisciplinary
Rong Zhang, Jiajing Lan, Fei Wang, Shumei Chen, Jian Zhang
Summary: By utilizing 1,1'-ferrocene dicarboxylic acid as a chelating and surface protection ligand, we have synthesized multi-nuclear indium oxide clusters with varying nuclear sizes, including heptanuclear and thirteen-nuclear clusters. These clusters possess labile coordination sites, allowing for structural modification and self-assembly, resulting in the formation of various cluster structures.
Article
Chemistry, Multidisciplinary
Hui Wang, Hui Liu, Mingsen Wang, Jiaheng Hou, Yongjun Li, Yuancheng Wang, Yingjie Zhao
Summary: Two supramolecular complexes were prepared using CBs and M1, and their single-crystal structures were analyzed by SCXRD. The unexpected 1:2 self-assembly structure between M1 and CB[8] was discovered for the first time. These complexes exhibit unique photophysical properties and provide valuable information about the structure and photophysical properties of supramolecular complexes.
Article
Chemistry, Multidisciplinary
Chang-Hee Lee, Sookil Park, Sanggil Kim, Ji Young Hyun, Hyun Soo Lee, Injae Shin
Summary: The epidermal growth factor receptor (EGFR) is a cell-surface glycoprotein involved in cell proliferation and tumor development. This study used a fluorescently labeled EGFR to investigate its time-dependent endocytosis in live cells and found that appended glycans affect EGFR internalization. Additionally, the study detected sialic acid residues attached to EGFR on the live cell surface using FRET-based imaging. This research provides valuable insights into the cellular functions of EGFR.
Article
Chemistry, Multidisciplinary
Subhankar Sahu, Lokesh Kumar, Sumita Das, Dipti Gupta, Ruchi Anand
Summary: This study proposes a strategy that combines organic electronics with biosensor scaffolds to create a compact device for monitoring environmental aromatic pollution. By coupling biosensing protein MopR with an organic electrochemical transistor (OECT), a sensor module capable of efficient detection of phenol was designed. Exclusive phenol detection with minimal loss of sensitivity could be achieved in complex pollutant mixtures and real environmental samples.
Review
Chemistry, Multidisciplinary
Changseok Lee, Hyung-Joon Kang, Sungwoo Hong
Summary: The formation of C-N bonds through hydroamination reactions catalyzed by nickel hydrides has been a topic of recent interest. This approach offers a way to efficiently transform a variety of alkene and alkyne substrates into compounds enriched with C-N bonds. The review provides a concise overview of the underlying reaction mechanisms and aims to stimulate further progress in NiH-catalytic techniques and catalyst design.
Article
Chemistry, Multidisciplinary
Yueci Wu, Lu-Lu Sun, Hai-Hao Han, Xiao-Peng He, Weiguo Cao, Tony D. James
Summary: Drug-induced liver injury (DILI) is a common cause of acute liver failure in the USA and Europe, but most cases can be recovered or prevented by discontinuing the offending drug. Recent research has found that peroxynitrite (ONOO-) can be used as a potential indicator for early diagnosis of DILI, and there is an urgent need to establish a method to detect and track peroxynitrite in DILI cases. In this study, a FRET-based nano fluorescent probe CD-N-I was developed, which showed high selectivity and sensitivity in detecting peroxynitrite. The probe successfully detected exogenous peroxynitrite in live cells and endogenous peroxynitrite in APAP-induced liver injury of HepG2 cells.
Article
Chemistry, Multidisciplinary
Dmitry L. Lipilin, Mikhail O. Zubkov, Mikhail D. Kosobokov, Alexander D. Dilman
Summary: This article describes a direct photocatalytic method for the thiolation of unprotected acids, which was previously challenging. By using a thionocarbonate reagent with an N-O bond, the efficient conversion of carboxylic acids to thiols is achieved.
Article
Chemistry, Multidisciplinary
Jason Malenfant, Lucille Kuster, Yohann Gagne, Kouassi Signo, Maxime Denis, Sylvain Canesi, Mathieu Frenette
Summary: Raman microscopy can reveal compound-specific vibrational fingerprints without sample preparation. The combination of efficient theoretical calculations and a user-friendly software can accurately predict peak positions and provide match scores to assist with structure determination.
Article
Chemistry, Multidisciplinary
Jayoh A. Hernandez, Paul S. Micus, Sean Alec Lois Sunga, Luca Mazzei, Stefano Ciurli, Gabriele Meloni
Summary: Essential trace metals play crucial roles in the survival and virulence of bacterial pathogens. Helicobacter pylori requires nickel for colonization and persistence in the stomach, and NixA is an essential nickel transporter in this process. This study characterizes the selectivity and electrogenic nature of NixA-mediated nickel transport.
Article
Chemistry, Multidisciplinary
Tarali Devi, Kuheli Dutta, Jennifer Deutscher, Stefan Mebs, Uwe Kuhlmann, Michael Haumann, Beatrice Cula, Holger Dau, Peter Hildebrandt, Kallol Ray
Summary: This study emphasizes the importance of subtle electronic changes and secondary interactions in the stability of biologically relevant metal-dioxygen intermediates. It also shows that the role of the chloride ligand in stabilizing the Fe-III-(OOBu)-Bu-t moiety can extend to other anions, including the thiolate ligand.
Article
Chemistry, Multidisciplinary
Jacqueline R. Santhouse, Jeremy M. G. Leung, Lillian T. Chong, W. Seth Horne
Summary: By studying the folding kinetics and mechanism of the BdpA sequence, researchers found that altering the backbone connectivity can affect protein folding. This suggests that protein mimetic chains have a significant degree of plasticity in transitioning between unfolded and folded states.
Article
Chemistry, Multidisciplinary
Divanshu Gupta, Ralf Einholz, Holger F. Bettinger
Summary: This study presents the first direct spectroscopic evidence of a cyclic seven-membered iminoborane. Compared to linear amino-iminoboranes, this cyclic iminoborane exhibits weakened bond strength and lower Lewis acidity value. The study suggests that the reduced ring strain of cyclic iminoborane prevents nitrogen fixation but allows facile (2 + 2) cycloaddition reaction with C2H4.
Article
Chemistry, Multidisciplinary
Renny Mathew, Aniruddha Mazumder, Praveen Kumar, Julie Matula, Sharmarke Mohamed, Petr Brazda, Mahesh Hariharan, Brijith Thomas
Summary: This study reveals the packing arrangement of partially disordered nitro-perylenediimide (NO2-PDI) using a synergistic approach that combines 3D ED, ssNMR, and DFT techniques. By overcoming these challenges, this methodology opens up new avenues for material characterization, driving exciting advancements in the field.
