Results 61 to 70 of about 62,479 (238)

Two‐Dimensional Infrared Spectroscopy Reveals the Presence of a Bridging CO Ligand in Two Catalytic Intermediates of [FeFe] Hydrogenase

Angewandte Chemie, EarlyView.
Two‐dimensional (2D) infrared (IR) spectroscopy provides vastly more structural and functional insight into chemical and biological systems than linear IR spectroscopy. Here, we apply 2D‐IR spectroscopy to two controversially discussed states of the [FeFe] hydrogenase active site, revealing the presence of a bridging carbonyl ligand, which is difficult
Cornelius C. M. Bernitzky, Mathesh Vaithiyanathan, Manon T. Lachmann, Igor V. Sazanovich, Gregory M. Greetham, Patricia Rodríguez‐Maciá, James A. Birrell, Marius Horch   +7 more
wiley   +2 more sources

Alkali-metal-mediated zincation (AMMZn) meets N-heterocyclic carbene (NHC) chemistry : Zn–H exchange reactions and structural authentication of a dinuclear Au(I) complex with a NHC anion [PDF]

, 2013
Merging two evolving areas in synthesis, namely cooperative bimetallics and N-heterocyclic carbenes (NHCs), this study reports the isolation of the first intermediates of alkali-metal-mediated zincation (AMMZn) of a free NHC and a Zn–NHC complex using ...
Aldeco-Perez, Andrikopoulos, Arduengo, III, Arduengo, III, Armstrong, Armstrong, Armstrong, Armstrong, Arnold, Arnold, Arnold, Back, Baillie, Bantu, Bourissou, Clegg, Clegg, Clegg, Conway, Crabtree, de Frémont, Diez-Gonzalez, Flower, Furuyama, Ghadwal, Gomez-Suarez, Guisado-Barrios, Haag, Hashmi, Hashmi, Hashmi, Hashmi, Hashmi, Hashmi, Jimenez-Nunez, Kobayashi, Kronig, Linton, Masuda, Mendoza-Espinosa, Mulvey, Mulvey, Mulvey, Mulvey, Musgrave, Nobuto, Raubnheimer, Rudolph, Rudolph, Schuster, Uchiyama, Wang, Wang, Wang, Wang, Westerhausen   +55 more
core   +1 more source

Construction of azaheterocycles via Pd-catalyzed migratory cycloannulation reaction of unactivated alkenes

Nature Communications, 2022
Azahetereocycles represent promising scaffolds in drug discovery. Here, the authors report a Pd-catalyzed migratory cycloannulation strategy for efficient construction of a wide range of azahetereocycles from unactivated aliphatic alkenes.
Jin-Ping Wang, Shuo Song, Yichen Wu, Peng Wang   +3 more
doaj   +1 more source

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures

Advanced Materials Technologies, EarlyView.
Here, it is shown that focused ion beam induced deposition (FIBID) using helium and neon ions enables advanced high‐resolution 3D nanoprinting achieving precise multimaterial architectures and engineered internal voids. Thus, FIBID with finely focused noble gas ion species is presented as a unique platform for designing functional nanomaterials for ...
Frances Isabel Allen
wiley   +1 more source

Controlling Near‐Infrared Fluorescence‐to‐Phosphorescence Ratios and Triplet Lifetimes in Rhodium(I) Dimers via Primary and Secondary Coordination Sphere Effects

Angewandte Chemie, EarlyView.
RhI dimers with bridging aryl isocyanide and di‐phosphine ligands show NIR‐I or NIR‐II fluorescence/phosphorescence, depending on the ligands and conformational rigidity at the Rh2 core. Rh‐Rh interactions can be tuned by peripheral modification of the aryl isocyanide ligand, resulting in a rigid Rh2 core and improved photophysical properties ...
Vanitha R. Naina, Giacomo Morselli, Alessandro Prescimone, Daniel Häussinger, Oliver S. Wenger   +4 more
wiley   +2 more sources

Electronic correlations in organometallic complexes

, 2011
We investigate an effective model for organometallic complexes (with potential uses in optoelectronic devices) via both exact diagonalisation and the configuration interaction singles (CIS) approximation.
A.C. Jacko, B.J. Powell, Baccouche, Bersuker, Bomben, Brocks, Butschke, Cano-Cortés, Cicoira, Dagotto, Fetter, Foresman, Forrest, Fulde, Gawelda, Ghosh, Gunnarsson, Hagfeldt, Haneder, Hay, Heeger, Hewson, Hochstrasser, Hofbeck, Jacko, Jacko, Jacko, Jacobsen, Kober, Kober, Kotliar, Kouwenhoven, LaBute, LaBute, Li, Lo, Mendes, Namdas, Obara, Powell, Rusanova, Schofield, Scriven, Scriven, Smith, Su, Wilson   +46 more
core   +1 more source

Dual-target ligand discovery for Alzheimer’s disease: triphenylphosphoranylidene derivatives as inhibitors of acetylcholinesterase and β-amyloid aggregation

Journal of Enzyme Inhibition and Medicinal Chemistry, 2023
Alzheimer disease (AD) is one of the major neurodegenerative diseases that could not be prevented or completely cured and may lead to death. Here, we target AChE and β-amyloid proteins.
Marwa El-Hussieny, Mansoura A. Abd-El-Maksoud, Fouad M. Soliman, Marwa A. Fouad, Mohamed K. El-Ashrey   +4 more
doaj   +1 more source

Metal‐Enhanced Charge Transport and its Mechanism in Atomically Precise Ruthenium Single‐Molecule Devices

Advanced Science, EarlyView.
An atomically precise platform was developed for investigating single‐molecule charge transport. This innovative platform enables the creation of highly uniform molecular devices using ruthenium‐based molecules. It reveals a significant enhancement in molecular conductance due to the metallic ruthenium center and a unique barrier‐lowering effect during
Jie Guo, Qinghua Gao, Ping Duan, Cong Zhao, Huimin Wen, Xiaoyan He, Lucie Norel, Yuzhe Zhang, Chunwen Wang, Wu Zhou, Xinyue Chang, Ju Wang, Stéphane Rigaut, Mingliang Li, Chuancheng Jia, Xuefeng Guo   +15 more
wiley   +1 more source

Iron‐Photocatalyzed C(sp3)–H Phosphonylation of Alkanes

Angewandte Chemie, EarlyView.
Alkyl phosphonates are valuable motifs that can be prepared by phosphonylations of various common functional groups. However, direct phosphonylations of C(sp3)–H bonds are limited to activated positions. Herein, we report an iron‐photocatalyzed phosphonylation of unactivated C(sp3)–H bonds using a novel phosphite radical trap, which is equipped with an
Ya Dong, Wangyujing Han, Hanwen Zhang, Santosh K. Pagire, Harry Meats, Adam Noble, Varinder K. Aggarwal   +6 more
wiley   +2 more sources

Cymantrene–Triazole "Click" Products: Structural Characterization and Electrochemical Properties [PDF]

, 2014
We report the first known examples of triazole-derivatized cymantrene complexes (η5-[4-substituted triazol-1-yl]cyclopentadienyl)tricarbonylmanganese(I), obtained via a “click” chemical synthesis, bearing a phenyl, 3-aminophenyl, or 4-aminophenyl moiety ...
Abboud J.-L. M., Anderson C. B., Astruc D., Badèche S., Baltz T., Beyer B., Bock V. D., Borissova A. O., Calladine J. A., Carvalho I., Chong D., Clough M. C., Dallagi T., David P. Day, David. L. Hughes, Dietmar Steverding, Evrard D., Geiger W. E., Geiger W. E., Gil M. V., Glans L., Gregory G. Wildgoose, Gritzner G., Happ B., Hirano T., Hirumi H., Holovics T. C., Huber W., Huisgen R., Jaschinski T., Kee J. W., Kilpin K. J., Kolb H. C., Kolb H. C., Lage M. L., Lawrence E. J., Laws D. R., Laws D. R., Leroux Y. R., Leroux Y. R., Liu Y., Lunquist R. T., Ornelas C., Ornelas C., Otón F., Otón F., Rapakousiou A., Romero T., Romero T., Romero T., Schweinfurth D., Schweinfurth D., Schweinfurth D., Sheridan M. V., Steverding D., Sünkel K., Thomas Dann, To T. T., Vasily S. Oganesyan, Yoo E. J.   +59 more
core   +1 more source