Results 201 to 210 of about 129,995 (287)

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

Enzymatic Metal-Hydrogen Atom Transfer with a Cobalt Protoporphyrin Cofactor. [PDF]

J Am Chem Soc
Masonheimer CL, Rourke MJ, Gardner RS, Hall RL, Perkins LJ, Brunold TC, Buller AR.   +6 more
europepmc   +1 more source

Kinetics of anionic polymerization of β‐myrcene in hydrocarbon solvents

Polymer International, EarlyView.
The process of anionic polymerization of β‐myrcene in hydrocarbon solvents was examined by kinetic studies and quantum chemical calculations. Abstract The kinetics of anionic polymerization of β‐myrcene initiated by sec‐butyllithium were examined in saturated and unsaturated hydrocarbon solvents, i.e. cyclohexane, cyclohexene, 4‐vinylcyclohexene and dl‐
Alexander Rösler, Steffen M Weidner, Tillmann Klamroth, Axel HE Müller, Helmut Schlaad   +4 more
wiley   +1 more source

Understanding the Role of Base in Catalytic Transfer Hydrogenation: A Comparative Review. [PDF]

Molecules
Taleb B, Al Mousawi A, Ghadban A, Hijazi I, Al Ahmar R, Bechelany M, Hijazi A.   +6 more
europepmc   +1 more source

Metal Hydride Compression

, 2017
Terry Johnson, Robert Bowman, Barton Smith, Lawrence Anovitz, Craig Jensen   +4 more
openaire   +2 more sources

Schiff based derived homogeneous catalysts for ring‐opening terpolymerization

Polymer International, EarlyView.
One‐pot synthesis of degradable terpolymers from l‐lactide, propylene oxide and CO₂ using diverse catalysts is described, revealing structure–property relationships for tailored applications in sustainable materials. Abstract In this study, we synthesized and evaluated a series of Schiff base cobalt catalysts for the terpolymerization of propylene ...
Akanksha Ranade, Amjad Ali, Rajeev Mehta
wiley   +1 more source

Nitroxide‐Mediated Polymerization Synthesis of Geminal Bisphosphonate‐Functionalized (Co)polymers and Their Affinity to Hydroxyapatite Surface

Journal of Polymer Science, EarlyView.
A novel styrenic monomer bearing gem‐bisphosphonate groups is synthesized in a single step. The nitroxide‐mediated (co)polymerization of this monomer proceeds in a well‐controlled manner, yielding bisphosphonate‐functionalized (co)polymers with low dispersity.
Hien The Ho, Nam Hoai Nguyen, Marion Rollet, Didier Gigmes, Trang N. T. Phan   +4 more
wiley   +1 more source

Cooperative metathesis of H-H/Sn-C^Ar bonds in stannylene-Ni⁰ systems. [PDF]

Chem Sci
Gilch JM, Keil PM, Iddrisu M, Szilvási T, Hadlington TJ.   +4 more
europepmc   +1 more source

The X‐Ray Crystal Structure of BorF, the Flavin Reductase Subunit of a Two‐Component Flavin‐Dependent Tryptophan Halogenase

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT BorF is a short‐chain flavin reductase from a desert soil bacterium that uses NADH to reduce FAD to FADH2, which is used by the tryptophan‐6‐halogenase BorH to chlorinate tryptophan in the biosynthetic pathway of borregomycin A. The X‐ray crystal structure of BorF bound to FAD was solved to 2.37 Å by molecular replacement.
Zheng Ma, Emily W. Rady, Aravinda J. de Silva, John J. Bellizzi III   +3 more
wiley   +1 more source

Exploring the Fragmentation of Sodiated Species Involving Covalent‐Bond Cleavages for Metabolite Characterization

Rapid Communications in Mass Spectrometry, EarlyView.
ABSTRACT Rationale Electrospray (ESI), the most popular desorption/ionization technique used in mass spectrometry‐based metabolomics, generates both protonated and deprotonated molecules, as well as adduct ions, sodium being the most frequent monoatomic cation entering their composition.
Annelaure Damont, Ekaterina Darii, Chenqin Cao, Anaïs Legrand, Alain Perret, Sylvain Dechaumet, Amina S. Woods, Christophe Junot, Jean‐Claude Tabet, François Fenaille   +9 more
wiley   +1 more source