Results 21 to 30 of about 68,370 (267)

Synthesis and Strong Solvatochromism of Push-Pull Thienylthiazole Boron Complexes

Molecules, 2022
The solvatochromic behavior of two donor-π bridge-acceptor (D-π-A) compounds based on the 2-(3-boryl-2-thienyl)thiazole π-linker and indandione acceptor moiety are investigated.
Martijn J. Wildervanck, Reinhard Hecht, Agnieszka Nowak-Król   +2 more
doaj   +1 more source

Synthesis of Boron Analogues of Enamines via Hydroamination of a Boron−Boron Triple Bond [PDF]

Angewandte Chemie International Edition, 2020
AbstractAn N‐heterocyclic‐carbene‐stabilized diboryne undergoes rapid, high‐yielding and catalyst‐free hydroamination reactions with primary amines, yielding 1‐amino‐2‐hydrodiborenes, which can be considered boron analogues of enamines. The electronics of the organic substituent at nitrogen influence the structure and further reactivity of the diborene
Tobias Brückner, Merlin Heß, Tom E. Stennett, Anna Rempel, Holger Braunschweig   +4 more
openaire   +3 more sources

Isolated Au Atom Anchored on Porous Boron Nitride as a Promising Electrocatalyst for Oxygen Reduction Reaction (ORR): A DFT Study

Frontiers in Chemistry, 2019
The development of efficient, stable, and low-cost catalytic material for the oxygen reduction reaction (ORR) is currently highly desirable but challenging.
Qiaoling Li, Tianran Zhang, Xiaofei Yu, Xiaoyu Wu, Xinghua Zhang, Zunming Lu, Xiaojing Yang, Yang Huang, Lanlan Li   +8 more
doaj   +1 more source

Boronated Cyanometallates

Inorganic Chemistry, 2022
Fourteen boronated cyanometallates ([M(CN-BR3)6]3/4/5– (M = Cr, Mn, Fe, Ru, Os, R = BPh3, B(2,4,6,-F3C6H2)3, B(C6F5)3) have been characterized by X-ray crystallography and spectroscopy [UV-vis-NIR, NMR, IR, spectroelectrochemistry, and magnetic circular dichroism (MCD)]; CASSCF+NEVPT2 methods were employed in calculations of electronic structures. For (
Brendon J. McNicholas, Cherish Nie, Anex Jose, Paul H. Oyala, Michael K. Takase, Larry M. Henling, Alexandra T. Barth, Alessio Amaolo, Ryan G. Hadt, Edward I. Solomon, Jay R. Winkler, Harry B. Gray, Emmanuelle Despagnet-Ayoub   +12 more
openaire   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

A fully conjugated meso-boron-substituted porphyrinoid combining Lewis acidity with redox-switchable aromaticity

Nature Communications
The structural motif of porphyrin is relevant for many essential biological processes and has emerged as a versatile component of functional materials. Here, we introduce a thiophene-based porphyrinogen having electron-deficient boron atoms in all four ...
Manuel Buckel, Jonas Klopf, Johannes S. Schneider, Artur Lik, Nicolas A. Riensch, Ivo Krummenacher, Holger Braunschweig, Bernd Engels, Holger Helten   +8 more
doaj   +1 more source

Epigenetic impact of the parents' physical activity on the health of their children

Baltic Journal of Health and Physical Activity, 2021
All parents’ dream is to have healthy children. The question whether the parents' lifestyle affects the quality of their progeny's health has been bothering scientists and society for many years.
AGNIESZKA BORON
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source