Results 61 to 70 of about 106,125 (294)

Light‐Activatable Nitric Oxide Release via Intramolecular Electron Transfer for Tumor Pyroptosis Induction

Advanced Science, EarlyView.
This work proposes a novel strategy to fabricate unimolecular pyroptosis photoinitiators activated by deep‐red light at low light doses. It relies on a photosensitization mechanism to trigger nitric oxide (NO) release from benzisothiadiazole‐based N‐nitrosanilines without modification of nitro moieties, thereby boosting pyroptosis‐mediated ...
Chuangxin Zhang, Ruipeng Li, Yunxia Wang, Feng Liu, Liheng Feng   +4 more
wiley   +1 more source

Heterocyclic Tricycles as Internal N-Glycosides from 2-Methyl-5-nitro-6-(2-nitrophenyl)-4-phenyl(2-furyl)tetrahydropyranols

Molecules, 2000
1-Methyl-10-nitro-11-phenyl(2-furyl)-2-aza-13-oxa-tricyclo[7.3.1.03,8]trideca-3,5,7-trienes 3 were synthesized via the reduction of the aromatic 2-nitro group of 2-methyl-5-nitro-6-(2-nitrophenyl)-4-phenyl(2-furyl)tetrahydropyranols 2 and subsequent ...
Klaus Peseke, Manfred Michalik, Lutz Götze, José Quincoces, Helmut Reinke   +4 more
doaj  

Functional Zwitterionic Polyurethanes as Gate Dielectrics for Organic Field‐Effect Transistors

Advanced Electronic Materials
The development of polymeric dielectrics with a high dielectric constant is of great significance for flexible low‐voltage organic field‐effect transistors (OFETs).
Qian Sun, Jinkang Hu, Chi Chen, Xiaobo Wan, Youbing Mu   +4 more
doaj   +1 more source

Integrating Machine Learning With Constant‐Potential Simulation to Unravel Charge‐Transfer Mechanisms in Electrochemical Nitrogen Fixation

Advanced Science, EarlyView.
Integrating interpretable machine learning with the fixed‐potential method reveals a novel mechanism: the catalytic activity of the electrochemical nitrogen reduction reaction is governed by partial charge transfer, induced by variations in the intermediate potential of zero charge under constant potential.
Yufei Xue, Dushuo Feng, Yuefei Zhang, Yang Zhang, Yalong Jiao, Aijun Du, Guoping Gao   +6 more
wiley   +1 more source

Substituição nucleofílica aromática em 1,2-dicloro-4,5-dinitrobenzeno [PDF]

, 2004
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.O 1,2-dicloro-4,5-dinitrobenzeno (DCDNB) reage com aminas primárias formando um produto monossubstituído, com a saída do grupo nitro ...
MENEZES, Fabrício Gava
core  

Is the nitro group attracted towards sulphur?

, 1989
Evidence is presented for a significant, orientation sensitive, attractive intramolecular interaction between sulphur and a nitro ...
Rajappa, Srinivasachari, Bhawal, Baburao M., Deshmukh, Abdul Rakeeb A. S., Chandrasekhar, Jayaraman, Manjunatha, Sulur G.   +4 more
core   +1 more source

Spike‐Embedded Nanocatalysts via Metal‐Directed Carbonization for Highly Efficient and Robust Semi‐Hydrogenation

Advanced Science, EarlyView.
A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li, Yang Sun, Minghang Li, Wenxuan Zhang, Zhengtao Li, Yihao Ni, Yao Zhang, Yong Wang, Samuel S. Veroneau, Pengfei Ji   +9 more
wiley   +1 more source

Potential Building Blocks for 1,4‐Dihydro‐N‐heteroacenes

ChemistryOpen, 2022
Studies have been performed aimed at the synthesis of N‐heteroacenes via substitution reactions of 4,5‐difluoro‐1,2‐dinitrobenzene with a diamine. The fluorine atoms are displaced first, followed by an activated nitro group.
Dr. M. John Plater, Prof. Dr. William T. A. Harrison   +1 more
doaj   +1 more source

W‐N‐C Tandem Catalytic Centers Mediating Efficient Charge Transfer for the Enhanced Radical‐Path U(VI) Photoreduction

Advanced Science, EarlyView.
This work constructed a tandem W−N−C center to simultaneously achieve the regulation of reaction pathways and optimization of charge separation efficiency. The Lewis‐acidic W6+ sites activated O2 to generate O2−$O_2^ - $, with enhanced charge separation via electronic modulation, steering U(VI) reduction down an efficient radical pathway.
Zhiyao Wu, Jinhao Xu, Hao Fu, Yuxiang Deng, Nannan Wang, Wenhua Zhang, Peng Zhang, Zhiwei Huang, Zhenpeng Cui, Shu‐Xian Hu, Wangsuo Wu, Duoqiang Pan   +11 more
wiley   +1 more source

Crystal structure of 2,6-dichloro-4-nitropyridine N-oxide

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C5H2Cl2N2O3, the nitro group is essentially coplanar with the aromatic ring, with a twist angle of 4.00 (6)° and a fold angle of 2.28 (17)°.
Andrew M. Prichard, Will E. Lynch, Clifford W. Padgett   +2 more
doaj   +1 more source