Results 101 to 110 of about 509,407 (311)

An NMR Study on Esculetin and It's Derivatives

Chinese Journal of Magnetic Resonance, 2019
The derivatives of esculetin contain hydroquinone groups that have various biological activities. In this study, the esculetin derivatives 2~14 were obtained by inducting the methoxy and hydroxyl groups into the 5, 6, 7 and 8 positions, and pheny group ...
LIU Ji-hong, JIN Kun, WANG Ping, LUO Gen
doaj   +1 more source

Synthesis and photochromic properties of a bis(diarylethene)-naphthopyran hybrid [PDF]

, 2014
The synthesis and photochromic properties of a triphotochromic molecule consisting of one naphthopyran flanked by two diarylethene units investigated by UV-Visible and NMR spectroscopies are reported.
Berthet, Jerome, Berthet, Jérôme, Cseh, Liliana, Delbaere, Stephanie, Delbaere, Stéphanie, Erko, Firealem G., Mehl, Georg H.   +6 more
core   +2 more sources

Bioactive Conductive Ti3C2Tx‐Ce Hydrogel Facilitates Spinal Cord Injury Repair Through ROS Scavenging and Mitochondrial Regulation

Advanced Functional Materials, EarlyView.
Bioactive conductive Ti3C2Tx‐Ce hydrogels with with scavenging ROS and alleviating neuronal mitochondrial dysfunction are exploited for SCI treatment. This functionality is attributed to interfacial activation modification of Ti3C2Tx with Ce3+ ions to in‐situ form Ce(OH)x‐mediated protective layer, which is beneficial to enabling stable intracellular ...
Weikang Wang, Qing Liu, Ang Lv, Yabin Lin, Jiawei Chen, Ning Ding, Chunlei Zhang, Shuai Zhou, Bo Yuan, Weiwei Zhao, Liming Li, Luping Zhang, Fei Huang   +12 more
wiley   +1 more source

Iron(III)-catalyzed chlorination of activated arenes [PDF]

, 2017
A general and regioselective method for the chlorination of activated arenes has been developed. The transformation uses iron(III) triflimide as a powerful Lewis acid for the activation of N-chlorosuccinimide and the subsequent chlorination of a wide ...
Andrew Sutherland, Aziz-ur-Rehman, Aziz-ur-Rehman, Daugirdas T. Racys, De La Mare P. B. D., Martyn C. Henry, Mohamed A. B. Mostafa, Peters E. J., Rosalind M. Bowley   +8 more
core   +1 more source

Sequences of Copolyesters by 1H NMR and 31P NMR Spectroscopy [PDF]

Polymer Journal, 1998
31P NMR and 1H NMR spectra of copolyesters containing phosphorus compounds, obtained by ester-exchange reaction, were studied. Poly(ethylene terephthalate) was used as the main component and poly(hydroquinone phenylphosphate), poly[bis(4-hydroxyphenyl)sulfonephenylphosphate], and poly[bis(4-hydroxyphenyl)sulfonemethylphosphate], as phosphorus compounds.
openaire   +1 more source

The Terminal Domains of Collagen‐Like Silk Direct Molecular Interactions and Liquid–Liquid Phase Separation‐Mediated Material Assembly

Advanced Functional Materials, EarlyView.
Terminal domains of recombinant collagen‐like silk regulate hierarchical self‐assembly across molecular and material scales. We show that terminal domains of collagen‐like silk enhance triple‐helix stability and drive liquid–liquid phase separation, enabling reversible formation of fibers and self‐healing films.
Mengjie Shen, Daniil Astapov, Nur Alia Oktaviani, Mami Goto, Keiji Numata, A. Sesilja Aranko   +5 more
wiley   +1 more source

(2E)-3-(3-Methoxy-1-phenyl-1H-pyrazol-4-yl)-2-propenal

Molbank, 2009
The palladium-catalyzed reaction of 4-bromo-3-methoxy-1-phenyl-1H-pyrazole with acrolein diethyl acetal gives the title compound in good yield. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented.
Algirdas Šačkus, Eglė Arbačiauskienė, Wolfgang Holzer, Neringa Kleizienė   +3 more
doaj   +1 more source

Six-coordinate organotin(IV) complexes formed using the Kläui ligands; [CpCo{P(OR′)2O}3]SnR3 − nCln [PDF]

, 2006
The complexes [CpCo{P(OR′)2O}3]SnR3 − nCln [R′ = Me, Et; R = Ph, Me] are readily prepared from the corresponding organotin chloride and the sodium salt of the Kläui ligands. The X-ray crystal structures of the full series are reported for R = Ph, n = 0-3,
Lloyd, Nicholas C., Nicholson, Brian K., Wilkins, Alistair L.   +2 more
core   +2 more sources

1H-NMR-Spektroskopie

, 2016
Eine Einfuhrung zum Thema 1H-NMR-Spektroskopie, inklusive Gerateaufbau, Messprinzip und Interpretationsgrundlagen sind Inhalt dieses Kapitels.
openaire   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source