Results 41 to 50 of about 101,444 (317)

Synthesis and Characterization of Unusual S=1 Fe(0)‐Silyl Complexes Supported by Styrene Ligands

Angewandte Chemie, EarlyView.
Despite the long‐standing importance of iron‐silicon bonds as related to catalysis, high‐spin Fe(0)‐silyl complexes remain a historical synthetic challenge in the field. Herein, we report the first series of high‐spin S = 1, styrene‐stabilized Fe(0)‐silyl complexes followed by extensive characterization via Mössbauer spectroscopy, single crystal X‐ray ...
Alexis K. Bauer, Agamemnon E. Crumpton, Michael L. Neidig   +2 more
wiley   +2 more sources

Trispyrazolylborate Ligands Supported on Vinyl Addition Polynorbornenes and Their Copper Derivatives as Recyclable Catalysts [PDF]

, 2019
Polynorbornenes prepared by vinyl addition poly- merization and bearing pendant alkenyl groups serve as skeletons to support trispyrazolylborate ligands (Tpx) built at those alkenyl sites.
Albéniz Jiménez, Ana Carmen, Beltrán de Heredia Rentería, Juan, Díaz Requejo, María del Mar, Molina de la Torre, Jesús Ángel, Pérez Ortega, Ignacio, Pérez, Pedro J., Rodríguez, Manuel R.   +6 more
core   +2 more sources

Unnatural Amino Acid and Emerging Chemistry Approaches to Map RNA–Protein Interactions

Angewandte Chemie, EarlyView.
This review highlights emerging chemistries for mapping RNA–protein interactions, including genetically encoded unnatural amino acids, novel photocrosslinkers, and non‐photoactivatable crosslinking systems. We compare their mechanisms, reactivity and applications, outlining how these next‐generation tools enable higher‐resolution, site‐specific ...
Eryn Lundrigan, Parrish Evers, Elexa Scott, John Paul Pezacki   +3 more
wiley   +2 more sources

Accessing Low-Valent Titanium CCC-NHC Complexes: Toward Nitrogen Fixation

Inorganics, 2021
The dramatic expansion of the earth’s population can be directly correlated with the Haber–Bosch process for nitrogen fixation becoming widely available after World War II.
Sriloy Dey, T. Keith Hollis
doaj   +1 more source

Types and properties of metal-free catalysts for living polymerizations of biomaterials [PDF]

, 2008
Syntéza biokompatibilních a biodegradabilních polyesterů, použitelných převážně v medicíně, využívá pro polymeraci za otevření kruhu katalyzátory na bázi kovu (např. Sn, Al atd.), které se mohou po implantaci deponovat v těle.
Repka, Martin
core  

Enhanced cytotoxicity of silver complexes bearing bidentate N-heterocyclic carbene ligands [PDF]

, 2012
A diverse library of cationic silver complexes bearing bis(N-heterocyclic carbene) ligands have been prepared which exhibit cytotoxicity comparable to cisplatin against the adenocarcinomas MCF7 and DLD1.
Baker, Benjamin D. Crossley, Charlotte E. Willans, Chen, Corberan, Diana C. F. Monteiro, Dragutan, Hermann, Hickey, Hindi, Jake Fielden, Kascatan-Nebioglu, Klasen, Lin, Magill, Marion, Medvetz, Melaiye, Meres, Mosmann, Patil, Patil, Patil, Patil, Patil, Rai, Ray, Roger M. Phillips, Roland, Siciliano, Teyssot, Teyssot, Willans   +32 more
core   +1 more source

Anomalous Stiffening of a Conjugated Polymer During Electrochemical Oxidation

Advanced Functional Materials, EarlyView.
The electromechanical response of a thienothiophene‐based conjugated polymer with triethylene glycol side chains is investigated. Electrochemical nanoindentation and atomic force microscopy reveal a modest and reversible increase in elastic modulus at room temperature upon electrochemical oxidation.
Judith Pons i Tarrés, Di Zhu, Chiara Musumeci, Youngseok Kim, Dilara Meli, Hang Yu, Meghna Jha, Bryan D. Paulsen, Ruiheng Wu, Joost Kimpel, Zachary Laswick, Sri Harish Kumar Paleti, Yadong Zhang, Stephen Barlow, Seth R. Marder, Jenny Nelson, Jonathan Rivnay, Christian Müller   +17 more
wiley   +1 more source

The Synthesis of Some Perhydrobenzimidazolinium Salts and Their Application in Pd-Carbene Catalyzed Heck and Suzuki Reactions

Molecules, 2009
Novel 1,3-dialkylperhydrobenzimidazolinium chloride salts were prepared as precursors of N-heterocyclic carbenes 3a-e by reacting N,N’-dialkylcyclohexandiamine, triethyl orthoformate and ammonium chloride.
Murat Yiğit
doaj   +1 more source

Poly(imidazolyliden-yl)borato Complexes of Tungsten: Mapping Steric vs. Electronic Features of Facially Coordinating Ligands

Molecules, 2023
A convenient synthesis of [HB(HImMe)3](PF6)2 (ImMe = N-methylimidazolyl) is decribed. This salt serves in situ as a precursor to the tris(imidazolylidenyl)borate Li[HB(ImMe)3] pro-ligand upon deprotonation with nBuLi.
Callum M. Inglis, Richard A. Manzano, Ryan M. Kirk, Manab Sharma, Madeleine D. Stewart, Lachlan J. Watson, Anthony F. Hill   +6 more
doaj   +1 more source

Novel "green" catalysts for controlled ring-opening polymerization of lactide [PDF]

, 2010
Syntéza polylaktidu (PLA) polymerací za otevření kruhu cyklického monomeru (ROP) může být uskutečněna různými způsoby. Literatura uvádí více než 100 katalytických systémů, jejichž pomocí lze polylaktid a jiné biodegradabilní alifatické polyestery získat.
Surman, František
core