Results 61 to 70 of about 1,150 (193)

Kumada‐Tamao Catalyst‐Transfer Condensation Polymerization of AB2 Monomer: Synthesis of Well‐Defined Hyperbranched Poly(thienylene‐phenylene)

Macromolecular Rapid Communications, Volume 46, Issue 9, May 2025.
Kumada‐Tamao catalyst‐transfer condensation polymerization of AB2 monomer in the presence of Ni(dppe)Cl2 in THF affords hyperbranched poly(thienylene‐phenylene) with a narrow molecular weight distribution and controlled molecular weight, which is close to the theoretical molecular weight calculated from the ratio of consumed AB2 monomer to Ni(dppe)Cl2.
Yoshihiro Ohta, Toshiki Hirota, Arisa Yamamoto, Tsutomu Yokozawa   +3 more
wiley   +1 more source

Isonitrile Photochemistry: A Functional Group Class Coming in from the Cold

Chemistry – A European Journal, Volume 30, Issue 64, November 15, 2024.
Isonitriles, often neglected for their unpleasant smell, have fascinated many generations of chemists thanks to unique reactivity modes. The present concept article, by retracing the seeds of isonitrile photochemistry, points out the hidden opportunities offered by visible light photo(redox) catalysis to promote key advancements in the field.
Mariateresa Giustiniano
wiley   +1 more source

Organotellurium(II) and ‐(IV) Compounds with Picolinoylbis(thioureas): From Simple 1 : 1 Adducts to Multimetallic Aggregates

European Journal of Inorganic Chemistry, Volume 27, Issue 29, October 11, 2024.
Bifunctional 2,6‐dipicolinoylbis(N,N‐diethylthioureas) (H2LEt) form tellurium compounds of a remarkable structural variety. Tellurium(IV) or tellurium(II) products are formed depending on the reaction conditions applied. The formation of heterobimetallic products is observed when transition metal ions are present in such reaction mixtures. They contain
Sailer S. dos Santos, Vania D. Schwade, Ernesto Schulz Lang, Chien Thang Pham, Maximilian Roca Jungfer, Ulrich Abram, Hung Huy Nguyen   +6 more
wiley   +1 more source

From small to large—The application of in situ polymerization within tumor cells

Aggregate, Volume 5, Issue 4, August 2024.
In situ polymerization within tumor cells can be achieved by chain‐reaction polymerization and step‐growth polymerization. The former is classified as light‐triggered, transition metals‐triggered, reactive oxygen species‐triggered, and enzyme‐triggered polymerization based on the mode of initiation, while the latter includes condensation polymerization
Mingjie Jia, Yonghang Liu, Peng Wei, Tao Yi   +3 more
wiley   +1 more source

Halogen, Chalcogen, Pnictogen, and Tetrel Bonding in Non‐Covalent Organocatalysis: An Update

Angewandte Chemie International Edition, Volume 63, Issue 31, July 29, 2024.
Recent developments on the use of non‐transient non‐covalent interactions based on elements of groups 14–17 in organic synthesis and organocatalysis are discussed. While halogen and chalcogen bonding are now clearly established in this area, applications of pnictogen and particularly tetrel bonding are only starting to emerge.
Dragana Jovanovic, Meghana Poliyodath Mohanan, Stefan M. Huber   +2 more
wiley   +1 more source

A Highly Sterically Encumbered Boron Lewis Acid Enabled by an Organotellurium‐Based Ligand

Chemistry – A European Journal, Volume 30, Issue 36, June 25, 2024.
The new boron Lewis acid B[OTeF3(C6F5)2]3 combines one of the most sterically encumbered boron centres with a Lewis acidity comparable to that of B(C6F5)3. It additionally provides ligand transfer reactivity towards fluoride compounds as shown in the synthesis of an Au(III) complex and a hypervalent iodine species. Abstract Lewis acidic boron compounds
Daniel Wegener, Alberto Pérez‐Bitrián, Niklas Limberg, Anja Wiesner, Kurt F. Hoffmann, Sebastian Riedel   +5 more
wiley   +1 more source

Aggregation‐induced emission polymers via reversible‐deactivation radical polymerization

Aggregate, Volume 5, Issue 1, February 2024.
Aggregation‐induced emission (AIE) active polymers have a wide range of practical applications, and one of the important methods for the design and synthesis of AIE polymers is the use of reversible‐deactivation radical polymerization (RDRP) techniques.
Nicholas Kai Shiang Teo, Bo Fan, Aditya Ardana, San H. Thang   +3 more
wiley   +1 more source

Suspension Photopolymerization of Methyl Methacrylate and ATRP Grafting of Thermo‐Responsive Polymers Using a Perylediimide Derivative Photoinitiator

Macromolecular Materials and Engineering, Volume 309, Issue 2, February 2024.
A perylene diimide derivative is synthesized and used as photoinitiator for atom transfer radical polymerization of methyl methacrylate. Surface‐initiated polymerization confirms the controlled characteristic by exploiting the presence of terminal bromine on the surface of the particles obtained by suspension.
Aurel Diacon, Florica Rizea, Alexandra Mocanu, Adrian Dinescu, Cristina Stavarache, Luiza Izabela Jinga, Cristian N. Mihăilescu, Edina Rusen   +7 more
wiley   +1 more source

Catalytically active nanosized Pd₉Te₄ (telluropalladinite) and PdTe (kotulskite) alloys: first precursor-architecture controlled synthesis using palladium complexes of organotellurium compounds as single source precursors. [PDF]

RSC Adv, 2021
Arora A, Oswal P, Rao GK, Kumar S, Singh AK, Kumar A.   +5 more
europepmc   +1 more source

Comparing Study of The Stability and spectral properties vibrations for some Tellurium (IV) compounds containing cycloctadienyl group by Quantum Mechanical Calculations [PDF]

, 2013
Density Functional Theory (DFT) with B3LYP hybrid exchange-correlation functional and 3-21G basis set and semi-empirical methods (PM3) were used to calculate the energies (total energy, binding energy (Eb), molecular orbital energy (EHOMO-ELUMO), heat ...
Finjan, Abdel-Amir M., Hamza, Manal Obaid   +1 more
core   +2 more sources