نتایج جستجو برای: n heterocyclic carbenes

تعداد نتایج: 982336  

Journal: :ACS Catalysis 2023

ADVERTISEMENT RETURN TO ARTICLES ASAPPREVViewpointNEXTN-Heterocyclic Carbenes Capped Metal Nanoparticles: An Overview of Their Catalytic ScopeMoushakhi GhoshMoushakhi GhoshDepartment Chemistry, Indian Institute Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411008, IndiaMore by Moushakhi Ghosh Shabana Khan*Shabana KhanDepartment India*Email: [email protected] (S.K.).Mor...

Journal: :Angewandte Chemie 2022

Gold nanoparticles (AuNPs) are employed in numerous applications, including optics, biosensing, and catalysis. In their Communication (e202212459), Petra S. Dittrich et al. demonstrate the stabilizer-free electrochemical synthesis of AuNPs inside nanoliter-sized reactors. with sizes range 30 to 100 nm were produced without need for additional capping agents. This method opens way fine-tune prod...

Journal: :Physical chemistry chemical physics : PCCP 2015
Branka Kovač Ivan Ljubić Antti Kivimäki Marcello Coreno Igor Novak

The photoionization of three N-heterocyclic carbenes (NHCs) has been studied in the valence and core regions using synchrotron radiation. We observed different variations in the relative band intensities with photon energy for the NHCs in the valence ionization region. This is due to the intra-ring interactions between the C=C bond, nitrogen and carbene lone pairs in the heterocyclic ring of NH...

2015
Stefan Naumann Johannes Klein Dongren Wang Michael R Buchmeiser

The polymerization of octamethylcyclotetrasiloxane (D4) is investigated using several five-, six- and seven-membered N-heterocyclic carbenes (NHCs). The catalysts are delivered in situ from thermally susceptible CO2 adducts. It is demonstrated that the polymerization can be triggered from a latent state by mild heating, using the highly nucleophilic 1,3,4,5-tetramethylimidazol-2-ylidene as orga...

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