Zobrazeno 1 - 10
of 38 020
pro vyhledávání: '"carbon-13 NMR"'
Autor:
Alexander Kessenikh
Publikováno v:
Substantia, Vol 4, Iss 2 (2020)
Endel Lippmaa - Estonian physicist and chemist was one of the pioneers in the development and application of NMR method (1950s - 1970s). He had to work in conditions when Estonia was part of the USSR as the Estonian SSR and, nevertheless, the develop
Externí odkaz:
https://doaj.org/article/55e8ccb892024cfb9ad563471586aa04
Autor:
Mikhail A. Varfolomeev, I. Z. Rakhmatullin, Vladimir V. Klochkov, Sergej V. Efimov, Oleg I. Gnezdilov, A. V. Klochkov
Publikováno v:
Petroleum Research. 7:269-274
Application of high resolution 13C nuclear magnetic resonance (NMR) spectroscopy to characterize crude oil was demonstrated. The chemical shifts of 13C NMR functional groups that determine the composition of the oil sample were determined. Molar frac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::989a10f308aae62e87f6948e5aa3f736
https://doi.org/10.1016/j.ptlrs.2021.10.001
https://doi.org/10.1016/j.ptlrs.2021.10.001
Publikováno v:
FirePhysChem. 2:140-146
Two novel nitrogen-rich heterocyclic energetic compounds, 5-amino-3-azido-4-nitro-1H-pyrazole (3) and 5,5′-diazido-4,4′-dinitro-1H,1′H-2,2′-biimidazole(6), featuring ortho azido/nitro groups were designed and synthesized by reactions of diazo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25cc7f36e58b43f374bf5ae83f0c3ecf
https://doi.org/10.1016/j.fpc.2021.09.003
https://doi.org/10.1016/j.fpc.2021.09.003
Publikováno v:
Journal of Fundamental and Applied Sciences; Vol. 12 No. 2 (2020); 895-905
A new proline based ligand was syn thesized by a convenient procedure. The ligand was characterized by 1 H NMR, 13 C NMR and IR spectroscopies. Copper (II) Schiff base complexes of 4 --{[2 --(methoxycarbonyl) pyrrolidin 1 yl] methyl} benzoic acid of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::273b409778063733deaa2b18d9e25a6b
https://www.ajol.info/index.php/jfas/article/view/248183
https://www.ajol.info/index.php/jfas/article/view/248183
Publikováno v:
Journal of chemical information and modeling, vol. 61, no. 2, pp. 756-763, 2021.
Journal of Chemical Information and Modeling
Journal of Chemical Information and Modeling
Herein, we report a computational algorithm that follows a spectroscopist-driven elucidation process of the structure of an organic molecule based on IR, $^1$H and $^{13}$C NMR, and MS tabular data. The algorithm is independent from database searchin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::776dd2d7a6ded6669c8138dfa8fc45f9
https://hdl.handle.net/20.500.12556/RUL-144696
https://hdl.handle.net/20.500.12556/RUL-144696
Publikováno v:
Catalysis Today. :274-287
Two dioxidomolybdenum(VI) complexes, [MoVIO2{H2dfba(bhz)2}(H2O)] (1) and [MoVIO2{H2dfba(fah)2}(H2O)] (2) of ligands H4dfba(bhz)2 (I) and H4dfba(fah)2 (II) (H2dfba = 3,5-diformyl-4-hydroxybenzoic acid, Hbhz = benzoylhydrazide and Hfah = 2–furanoylhy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b1ba21c8bd31d93ba428c0f1a151283
https://doi.org/10.1016/j.cattod.2020.06.031
https://doi.org/10.1016/j.cattod.2020.06.031
Publikováno v:
Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Volume: 15, Issue: 1 30-45
Erzincan University Journal of Science and Technology
Volume: 15, Issue: 1 30-45
Erzincan University Journal of Science and Technology
Bu çalışmada pioglitazon molekülünün geometrik yapıları, bağ uzunlukları, bağ açıları, titreşim frekansları, dipol momentleri, proton ve karbon-13 NMR izotropik kimyasal kaymaları, UV-Vis. Parametreleri ile HOMO ve LUMO enerjileri Ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c119073b64e3b7cc2eaa2b19d6dc704e
https://doi.org/10.18185/erzifbed.899259
https://doi.org/10.18185/erzifbed.899259
Autor:
Sunita Dahiya, Vijaya Sahadeo, Vernon Davis, Rajiv Dahiya, Suresh V. Chennupati, Jayvadan K. Patel
Publikováno v:
Current Organic Synthesis. 19:267-278
Aims: The present investigation is targeted towards the synthesis of a novel analogue of a natural peptide of marine origin. Background: Marine sponges are enriched with bioactive secondary metabolites, especially circu-lar peptides. Heterocycles are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d61e6dceec6a6c5f8c7a24ace2035e41
https://doi.org/10.2174/1570179418666211005141811
https://doi.org/10.2174/1570179418666211005141811
Publikováno v:
Journal of Industrial and Engineering Chemistry. 106:189-197
The aim of this work was to improve the dissolution properties of poorly soluble drug sulfasalazine (SSZ) by encapsulation in the metal organic framework based on γ-cyclodextrin (γCD-MOF). Loading of SSZ in the framework was successfully performed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff53f2a97f9b77f8994fe2dbfea18242
https://doi.org/10.1016/j.jiec.2021.10.028
https://doi.org/10.1016/j.jiec.2021.10.028
Publikováno v:
Materials Today: Proceedings. 50:2853-2864
The structure of 3-Bromo Phenyl Acetic acid (3BPAA) is optimized and its special features are probed by the FTIR, FT-Raman, UV-Visible and NMR with density functional theory calculations by B3LYP level with 6-311++G(d,p) basis set. The electronic pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c77ac4acf3ba6452ec5d2d939f40b125
https://doi.org/10.1016/j.matpr.2020.09.572
https://doi.org/10.1016/j.matpr.2020.09.572