Results 201 to 210 of about 17,830 (242)

Theoretical Framework for Predicting Dynamic Covalent Exchange Based on Proton Affinities and Proton‐Transfer Assistance

Chemistry – A European Journal, EarlyView.
Proton‑transfer catalysis controls acylsemicarbazide dissociation, linking proton affinity to exchange kinetics and enabling predictive design of robust, tunable dynamic covalent networks. ABSTRACT We provide design principles for predicting bond exchange kinetics in acylsemicarbazide (ASC)‐based systems that can be applied to tuning the properties of ...
Siebe Lekanne Deprez, Stefan J. D. Maessen, Angelina N. van Dam, Celine Nieuwland, Pascal Vermeeren, Anja R. A. Palmans, Célia Fonseca Guerra   +6 more
wiley   +1 more source

Initiating olefin metathesis: alkylidenes from molecular Mo(iv)-oxo species, olefins and base-promoted proton transfer. [PDF]

Chem Sci
Nater DF, de Zwart FJ, Kaeffer N, Copéret C.   +3 more
europepmc   +1 more source

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

A Very Readily Prepared Ligand for Rhodium Catalyzed Propene Hydroformylation. [PDF]

Chemistry
Fuentes JA, Cordes DB, McKay AP, Janka ME, Clarke ML.   +4 more
europepmc   +1 more source

Persilylated and Related Silyl Anion‐Induced Synthesis of Group 3–10 Metal–Silyl Complexes

Chemistry – A European Journal, EarlyView.
Persilylated and related silyl anions serve as powerful tools for constructing metal–silyl complexes across group 3–10 elements. Their strong σ‐donating ability and steric bulk stabilize low‐coordinate, reactive species and enable unique bonding motifs.
Yusuke Sunada
wiley   +1 more source

Ozone-Assisted Oxidation of C₅ Alkenes: Structural Effects on Criegee Intermediate Reaction Networks. [PDF]

Chemphyschem
Floyd AM, DeCecco AC, Zhai Y, Jasper AW, Hansen N, Clarke Z, Popolan-Vaida DM.   +6 more
europepmc   +1 more source

Catalytic Oxidation of CO and VOC in Flue Gas of Coffee Roasting Machines

Chemie Ingenieur Technik, EarlyView.
Platinum‐coated cordierite monoliths effectively oxidized CO and VOC in coffee roasting exhaust with higher Pt loadings lowering light‐off temperatures. Scaled up 90 g/ft3 catalyst in a 5 kg roaster achieved 96% CO and around 78% VOC conversion at 350°C, highlighting stable operation requires flue gas temperatures ≥350°C.
Till Hauswald, Kalle Weidauer, Christoph Hahn, Sven Kureti   +3 more
wiley   +1 more source

Homolytic fracture of inorganic crystalline materials enhances the mechano-chemical degradation of polypropylene. [PDF]

Chem Sci
Hergesell AH, Popp S, Meena R, Ospina Guarin VM, Seitzinger CL, Sievers C, Li G, Vollmer I.   +7 more
europepmc   +1 more source

Amino Acid Modified Polymer Mesh for Removal of the Heavy Metal Ions Pb2+, Hg2+, Cu2+, and Ni2+ From Aqueous Solutions

Chemie Ingenieur Technik, EarlyView.
Adsorbents for cations of copper, lead, mercury, and nickel are obtained via grafting polymer mesh with an acrylic acid copolymer and subsequent functionalization with an amino acid. A distinct influence of the type of amino acid on the adsorption occurs.
Claudia Adolfs, Jan Becker, Hoang‐My Pham‐Cong, Uwe Gohs, Axel Fischer, Marco Drache, Sabine Beuermann   +6 more
wiley   +1 more source

Mechano-catalytic conversion of polypropylene over zeolite-based materials.

Catal Sci Technol
Hergesell AH, Seitzinger CL, Pasternak H, Seidling L, Ospina Guarin VM, Karpensky N, Puch F, Welzel T, Vollmer I.   +8 more
europepmc   +1 more source