Results 61 to 70 of about 220,097 (316)

Deconvolution and Analysis of 1H NMR Spectra of Crude Reaction Mixtures

, 2023
NMR spectroscopy is an important analytical technique in synthetic organic chemistry, but its integration into high-throughput experimentation workflows has been limited by the necessity to manually analyze NMR spectra of new chemical entities.
Kristin, Persson, John, Hartwig, Masha, Elkin, Connor, Delaney, Maxwell, Venetos   +4 more
core   +1 more source

9-Methyl-3,5-dioxo-4-azatricyclo[5.2.2.02,6]undec-8-ene-1,8-diyl Diacetate

Molbank, 2010
9-Methyl-3,5-dioxo-4-azatricyclo[5.2.2.02,6]undec-8-ene-1,8-diyl diacetatewas synthesized from 2-methylcyclohexane-1,3-dione and 1H-pyrrole-2,5-dione. The title compound was characterized by 1H NMR, 13C NMR, elemental analysis and MS.
Anna Bielenica, Jerzy Kossakowski
doaj   +1 more source

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

Advanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells, Ivan Kuzmenko, Reza A. Ghiladi, Richard J. Spontak   +3 more
wiley   +1 more source

NMR analysis of Nile Blue (C. I. Basic Blue 12) and Thionine (C. I. 52000) in solution

, 2011
The dyes Nile Blue (C. I. Basic Blue 12, NB) and Thionine (C. I. 52000, TH) were examined in both ionic and neutral forms in different solvents using NMR and UV-visible Spectroscopy to firmly establish the structures of the molecules and to assess the ...
Evstigneev, Maxim P., Mills, Andrew, Salvia, M.V., Hutchings, Michael G., Hazafy, David, Andrew Mills, Parkinson, J., Hutchings, M.G., Salvia, Marie-Virginie, David Hazafy, Maxim P. Evstigneev, Parkinson, John A., Michael G. Hutchings, Hazafy, D., Marie-Virginie Salvia, John A. Parkinson, Mills, A., Evstigneev, M.P.   +17 more
core   +1 more source

Metabolite Profile Evaluation of Indonesian Roasted Robusta Coffees by ¹H NMR Technique and Chemometrics

Indonesian Journal of Chemistry, 2020
In this work, 1H NMR analysis, along with a chemometrics approach, had been applied for investigating metabolite profiles of Indonesian roasted Robusta coffees obtained from Lampung and Aceh.
Nizar Happyana, Elvira Hermawati, Yana Maolana Syah, Euis Holisotan Hakim   +3 more
doaj   +1 more source

Synthesis and root growth activity of some new acetylhydrazinecarbothioamides and 1,2,4-triazoles substituted with 5H-dibenzo[a,d]annulene moiety [PDF]

Journal of the Serbian Chemical Society, 2012
New hydrazinecarbothioamides 5a-d bearing 5H-dibenzo[a,d]an-nulene moiety were synthesized using classical procedures. 1H-NMR analysis indicated the existence of two conformational isomers, a major axial (about 75%) and a minor equatorial one (25 ...
Socea Laura I., Apostol Theodora V., Şaramet Gabriel, Bărbuceanu Ştefania F., Draghici Constantin, Dinu Mihaela   +5 more
doaj   +1 more source

Conformational Analysis of Methacrylates by IR and 1H NMR Spectroscopies [PDF]

Bulletin of the Chemical Society of Japan, 1988
Abstract The molecular structures of α-methylbenzyl methacrylate, 1,2-diphenylethyl methacrylate, α-t-butylbenzyl methacrylate, 1,2,2,2-tetraphenylethyl methacrylate, diphenylmethyl methacrylate, and 1,1-diphenylethyl methacrylate in solution were investigated by means of IR spectroscopy and 1H NMR spectroscopy using a lanthanoid-induced
Eiji Yashima, Yoshio Okamoto, Koichi Hatada, Hiroyuki Kageyama, Nobutami Kasai   +4 more
openaire   +1 more source

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source

Proton NMR relaxometry as a useful tool to evaluate swelling processes in peat soils

, 2010
Dramatic physical and physico-chemical changes in soil properties may arise due to temperature and moisture variations as well as swelling of soil organic matter (SOM) under constant conditions.
As, H., van, Jaeger, F., Shchegolikhina, A., van As, H., Schaumann, G.   +4 more
core   +1 more source

1D “Spikelet” Projections from Heteronuclear 2D NMR Data—Permitting 1D Chemometrics While Preserving 2D Dispersion

Metabolites, 2019
Nuclear magnetic resonance (NMR) spectroscopy is a powerful tool for the non-targeted metabolomics of intact biofluids and even living organisms. However, spectral overlap can limit the information that can be obtained from 1D 1H NMR.
Maryam Tabatabaei Anaraki, Wolfgang Bermel, Rudraksha Dutta Majumdar, Ronald Soong, Myrna Simpson, Martine Monnette, André J. Simpson   +6 more
doaj   +1 more source