Results 111 to 120 of about 42,464 (282)

Synthesis and characterisation of novel organophosphorus polymers for specific surface interactions [PDF]

, 1992
The work described in this thesis was concerned with the synthesis and attempted Ring Opening Metathesis Polymerisations (ROMP) of a series of monocyclic phospholenes and organophosphorus derivatives of bicyclo[2.2.1]heptene using a variety of catalysts ...
Jones, Mark Stuart
core  

Molybdenum‐carbothioamide complexes as potential single‐source precursors for MoS2 thin film

Bulletin of the Korean Chemical Society, EarlyView.
Novel molybdenum complexes were synthesized to apply for deposition of Mo‐containing thin films. All complexes were characterized, and they are likely to be used as single‐source precursors for MoS2 thin films. Abstract Molybdenum disulfide (MoS2) thin films are widely used in batteries, transistors, supercapacitors, and 2D materials owing to their ...
Sung Kwang Lee, Dagyum Yoo, Tae Wook Kim, Taek‐Mo Chung   +3 more
wiley   +1 more source

On-oligonucleotide olefin metathesis in water

Nature Communications
Genetically-encoded libraries represent a breakthrough in the large-scale screening of chemical matter. Within such technologies, encoded libraries of synthetic macrocycles generated by ring-closing metathesis hold significant potential to address ...
Chun Zhang, Christian O. Blanco, Anastasiya Khimich, Deryn E. Fogg, Andreas Brunschweiger   +4 more
doaj   +1 more source

Nitro-Grela-type complexes containing iodides – robust and selective catalysts for olefin metathesis under challenging conditions

Beilstein Journal of Organic Chemistry, 2015
Iodide-containing nitro-Grela-type catalysts have been synthesized and applied to ring closing metathesis (RCM) and cross metathesis (CM) reactions. These new catalysts have exhibited improved efficiency in the transformation of sterically, non-demanding
Andrzej Tracz, Mateusz Matczak, Katarzyna Urbaniak, Krzysztof Skowerski   +3 more
doaj   +1 more source

Synthesis and ring opening metathesis polymerization of some substituted norbornenes [PDF]

, 1990
The work reported in this thesis is concerned with an investigation of the synthesis and ring-opening metathesis polymerization of some substituted norbomenes. The monomers investigated were 2-phenoxy-3-chloro-2,3-difluorobicyclo[2.2.
Dounis, Panagiotis
core  

Phosphanyl Radicals From Bismuth‐Mediated Reactions and Sterically Encumbered Diphosphanes

Chemistry – A European Journal, EarlyView.
Reactions of LiPR2 with BiCl3 selectively give diphosphanes R2P–PR2 in high yields, presumably via Bi─P homolysis. This includes challenging cases with bulky substituents R. Sterically encumbered diphosphanes release persistent phosphanyl radicals [PR2]• in thermally initiated equilibrium reactions.
Sascha Reith, Marius Junghanns, Felix Möller, Crispin Lichtenberg   +3 more
wiley   +1 more source

Protonation of Propene on Silica-Grafted Hydroxylated Molybdenum and Tungsten Oxide Metathesis Catalysts: A DFT Study [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2019
Theoretical assessment of the protonation reaction in the activation of propene on hydroxylated Mo(VI) and W(VI) metathesis catalysts is presented in this paper using the density functional theory calculations and five support clusters varying from ...
Mohammad Ghashghaee, Mehdi Ghambarian
doaj  

Ring-opening metathesis activity of ruthenium-based olefin metathesis catalyst coordinated with 1,3-bis(2,6-diisopropylphenyl)-4,5dihydroimidazoline

, 2007
A 1,3-bis-(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene substituted ruthenium (Ru)-based complex (4) has been prepared starting from (PCy3)(2)(Cl Ru=CHPh (2).
Verpoort, FrancisUGent8010008471899742796108960000-0002-5184-5500F49CC820-F0ED-11E1-A9DE-61C894A0A6B4, Imamoglu, Yeditor, Karabulut, Solmaz, Dragutan, Veditor   +3 more
core  

Hydrogen Release From Silicon─Hydrogen Systems: From Surface Chemistry to Higher‐Coordinate Molecular Mechanisms

Chemistry – A European Journal, EarlyView.
Hydrogen‐release processes in silicon chemistry occur across a broad spectrum of systems, including crystalline silicon surfaces, nanoporous materials, Zintl phases, and molecular hydrides. This Review highlights how Si─H activation and H2 evolution are governed by structure, coordination environment, and dynamic access to reactive geometries, with ...
Robin Rothfelder, Jonathan O. Bauer
wiley   +1 more source

Sobre el sufijo occidental -ika y otras cuestiones de toponimia vasca [PDF]

Fontes Linguae Vasconum, 2011
En este trabajo analizo una serie de topónimos vascos occidentales con final en –ika (Gernika, Sondika...) a los que hasta ahora no se les había dado una explicación de conjunto, e intento relacionarlos con otros con final en –eka y –aka.
Patxi Salaberri Zaratiegi
doaj