Results 161 to 170 of about 178,442 (380)

Types and properties of metal-free catalysts for living polymerizations of biomaterials [PDF]

, 2008
Syntéza biokompatibilních a biodegradabilních polyesterů, použitelných převážně v medicíně, využívá pro polymeraci za otevření kruhu katalyzátory na bázi kovu (např. Sn, Al atd.), které se mohou po implantaci deponovat v těle.
Repka, Martin
core  

Catalase and Chlorophyll Depression by 3-Amino-1,2,4-Triazole. [PDF]

, 1957
H. T. Pyfrom, David Appleman, Werner G. Heim   +2 more
openalex   +1 more source

Acidogenesis‐Propelled Coordination Transition in Light‐Triggered Fe‐Polyphenol Polymer for Reactive Oxygen Species‐Augmented Antitumor Therapy

Advanced Science, EarlyView.
A novel iron‐polyphenol‐photoacid coordination polymer (FeBPs) is designed to achieve red light‐triggered external acidification and internal coordination regulation, where this light‐controlled acidification induces coordination changes that enhance Fe active site exposure and provide H+ for beneficial Fe3+/Fe2+ conversion, thereby accelerating ROS ...
Ying Wan, Hui Liu, Lin Gao, Guanyu Tan, Kailin Li, Qiwei Tian, Shiping Yang, Lu An   +7 more
wiley   +1 more source

Restoring Porosity and Uncovering Flexibility in Pillared 3D‐Linker Metal‐Organic Frameworks

Angewandte Chemie, EarlyView.
This research explores new design approaches towards robust frameworks which retain structural flexibility and porosity after activation. By incorporating bulky 3D‐linkers as anionic pillars with zinc triazolate sheets, moisture‐stable metal‐organic frameworks (MOFs) are synthesized. In situ powder X‐ray diffraction and gas adsorption techniques reveal
Sophie A. Booth, Volodymyr Bon, Connor W. Edwards, G. Paul Savage, Jack D. Evans, Stefan Kaskel, Lauren K. Macreadie   +6 more
wiley   +2 more sources

Studies on Oxidation. Part IV. Action of Ferric Chloride and Hydrogen Peroxide on S-Alkyl thiosemicarbazones: Formation ol Triazoles. [PDF]

, 1930
SATISH CHANDRA DE, TARANI KANTA CHAKRAVORTY   +1 more
openalex   +1 more source

Synthesis and Antimicrobial Activity of 4-Substituted 1,2,3-Triazole-Coumarin Derivatives

Molecules, 2018
A new series of coumarin-1,2,3-triazole conjugates with varied alkyl, phenyl and heterocycle moieties at C-4 of the triazole nucleus were synthesized using a copper(I)-catalysed Huisgen 1,3-dipolar cycloaddition reaction of corresponding O-propargylated ...
Priscila López-Rojas, Monika Janeczko, K. Kubiński, Ángel Amesty, Maciej Masłyk, A. Estévez-Braun   +5 more
semanticscholar   +1 more source

Coordination‐Locked Engineering to Achieve Narrowband Room Temperature Phosphorescence in Non‐Rare Earth Metal–Organic Frameworks

Advanced Science, EarlyView.
In this contribution, the coordination‐locked phosphorescence amplification (CLPA) strategy is developed to successfully construct the first non‐rare‐earth narrowband RTP MOF crystal, Sr–tbc. In addition, Sr–tbc shows potential applications in high‐resolution afterglow display and multilevel information recognition.
Wenlei Zhang, Jinpeng Li, Mengyao Wang, Yining Zhao, Xi Zhang, Hongfeng Li, Jing Liu, Tianyang Li, Meng Zhang, Fei Chen, Zhongyi Liu, Chao Lu   +11 more
wiley   +1 more source

Computational Study of Ignored Pericyclic Reactions: Rearrangements of 1,2‐Bis(Diazo)Alkanes to 1,2,3,4‐Tetrazines and Subsequent Fragmentations

Angewandte Chemie, EarlyView.
DFT calculations of the 8π‐electrocyclization of 1,2‐bis(diazo)alkanes and of other bis‐1,3‐dipoles reveal that this process can establish a so far ignored route to heterocycles such as 1,2,3,4‐tetrazines. Alternative reaction channels via carbenes or nitrenes leading to fragmentation products are discussed.
Hans‐Ulrich Reissig, Ernst‐Ulrich Würthwein   +1 more
wiley   +2 more sources

Inhibition Effect of N, N'-Dimethylaminoethanol on the Corrosion of Austenitic Stainless Steel Type 304 [PDF]

, 2012
The effect of N,N'-dimethylaminoethanol on the corrosion of austenitic stainless steel type 304 in 3M H2SO4 has been studied by weight-loss method and linear polarization measurement in different concentrations of the compound.
Fedotova, T., Loto, C. A., Loto, R. T.
core   +1 more source

Solvated Electron‐Driven Stepwise ORR on Na‐Metalated N‐Rich Carbon Nitride for Efficient Photocatalytic H2O2 Production

Advanced Science, EarlyView.
A sodium‐metalated, nitrogen‐rich carbon nitride (PH‐C3N5‐Na) is developed to generate solvated electrons (SEs) under visible‐light irradiation via a eutectic NaCl/LiCl molten salt‐assisted method. The in situ generated SEs drive a stepwise oxygen reduction via •O2−. Thus, an exceptional quantum efficiency of 54.4% (420 nm) is achieved.
Jianan Feng, Weilin Qin, Li Shangguan, Hui Zhang, Jianhua Sun, Shunping Sun, Yu Guo, Weiwei Lei   +7 more
wiley   +1 more source