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Relevant bibliographies by topics / IR and 1H NMR spectra

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Academic literature on the topic 'IR and 1H NMR spectra'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "IR and 1H NMR spectra"

1

Huda ahmed younis and Raheem Jameel Mahesein. "Synthesis and characterization A derivative of levofloxacin and a study of its bacteriostatic activity." Journal of Kufa for Chemical Sciences 3, no. 1 (2023): 97–125. http://dx.doi.org/10.36329/jkcm/2023/v3.i1.11699.

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This study includes two newly synthesized prodrugs of Levofloxacin derivatives mono and dipeptide H2, where was the Synthesized monoPeptide as Levofloxacin-Histadine (L-H), as well as dipeptide H6 as Synthesis of diPeptide (phenylalanine- levofloxacin (GPA-L), using a Levofloxacin substituted. Spectroscopic data were studied for two derivative compounds H2 and H6 and reactivity indices were characterized using techniques FT-IR, 1H-NMR, and 13C-NMR. All the newly produced derivative compounds H2 and H6 have FT-IR spectra that share similarities in certain fingerprint-like bands and other bands.

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Aleskerova, A., I. Jahangirova, E. Kerimli, and S. Serkerov. "Study of Artemisia kobstanica Sesquiterpene Lactones." Bulletin of Science and Practice, no. 10 (October 15, 2022): 47–53. http://dx.doi.org/10.33619/2414-2948/83/05.

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Sesquiterpene lactones of wormwood Artemisia kobstanica Rzazade from the flora of Azerbaijan were studied for the first time. Three sesquiterpene lactones, C15H18O3, m. p. 171–172 °C (1), C15H20O4, m. p. 124–126 °C (2), C15H18O4, m. p. 202–203 °C (3). Based on physicochemical and spectral (IR and 1H NMR spectra) data, lactones 1 and 3 were identified with α-santonin and artemisinin, respectively. Substance 2 turned out to be new, for the first time isolated from the studied species of wormwood by merezolid. Based on the data obtained from the interpretation of IR and 1H NMR spectra, the struct

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Jurášek, Adolf, Viktor Badory, Vladimír Žvak, and Jarmila Štetinová. "Synthesis and properties of 2,5-dimethyl-3-furoylthioureas." Collection of Czechoslovak Chemical Communications 56, no. 8 (1991): 1711–18. http://dx.doi.org/10.1135/cccc19911711.

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Addition of a series of aromatic or aliphatic amines to 2,5-dimethyl-3-furoyl isothiocyanate (I) afforded the corresponding N-(2,5-dimethyl-3-furoyl)-N’-aryl- or alkylthioureas II or III. Spectral data (IR, UV, 1H NMR, 13C NMR and mass spectra) of compounds prepared are presented.

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Astuti, Maria Dewi, Lathifah Fauzi, and Kamilia Mustikasari. "Isolation and Characterization of Compounds from Cinnamon Oil (Cinnamomum burmanii) Distillation Residu." Jurnal Sains dan Terapan Kimia 16, no. 1 (2022): 9. http://dx.doi.org/10.20527/jstk.v16i1.12160.

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This study aimed to isolate and characterize compounds from the distillation residue of cinnamon oil from Loksado, South Kalimantan. Cinnamon (Cinnamomum burmanii) distillation residue was extracted with methanol as solvent. The methanol extract was fractionated by liquid vacuum chromatography to obtain fractions A, B, C, and D. The crystals contained in fraction C were washed with cold n-hexane to obtain 5.4 mg of yellow isolate (FC1). FC1 isolates were characterized by UV-Vis, IR, 1H-NMR, and 13C-NMR spectrophotometers. UV spectra showed a maximum wavelength at 307, 316, and 321 nm indicatin

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Jaiswal, Amit, Anil Kumar Pal, Dharmendra Kumar Sahu, and Ranjeet Kumar. "Synthesis and characterizations of Hg (II) Complex of Macrocyclic complexes compounds Tetradecahydrodibenzo hexaazacyclooctadecine with HgX2 (X= Cl, Br) by Hirshfeld analysis and antimicrobial activity." Journal of Drug Delivery and Therapeutics 14, no. 3 (2024): 115–21. http://dx.doi.org/10.22270/jddt.v14i3.6476.

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This study examines the synthesis and characterization of a macrocyclic complex molecule having the general formula [M-LX2], where M =Hg (II) with schiff base Tetradecahydrodibenzo hexaazacyclooctadecine ligands. Resulted from the interaction between mercury and the diethyl triamine and benzene- 1, 2 diol in an ethanolic solution. Schiff base and its novel mercury (II) Complexes were studied vibrational in the solid state using spectral, 1H-NMR, IR, UV, and antimicrobial activity approaches. We were able to establish the coordination mode of the metal in complexes by comparing the changes in t

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Bobáľ, Pavel, Roman Gažo, Rudolf Kada, Dušan Ilavský, Naďa Prónayová, and Lubomír Zalibera. "Condensation Reactions of 1,2,3,4-Tetrahydro-6-methyl-2,4-dioxo-5-pyrimidinecarbaldehyde." Collection of Czechoslovak Chemical Communications 60, no. 4 (1995): 605–11. http://dx.doi.org/10.1135/cccc19950605.

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Condensation reactions of 1,2,3,4-tetrahydro-6-methyl-2,4-dioxo-5-pyrimidinecarbaldehyde with nine acid derivatives containing an active methylene group are described. The obtained products were characterized by their IR, UV, 1H NMR, 13C NMR and mass spectra. The stereochemistry of selected products was studied by 1H and 13C NMR spectroscopy.

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Thirunarayanan, Ganesamoorthy. "IR and NMR Spectral Studies of Some 4-(6-methoxy-2-naphthyl)-5,6-dihydro-6-(Substituted Phenyl)-⁴H-1,3-Oxazine-2-Amines: Assessment of Substituent." International Letters of Chemistry, Physics and Astronomy 23 (November 2013): 109–16. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.23.109.

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A series containing thirteen title compounds were synthesized and recorded IR and NMR spectra. The infrared νNH, C=N(cm-1)stretches, 1H NMR δNH, 13C NMR δC=N(ppm) chemical shifts of synthesized oxazine amines were assigned and correlated with Hammett substituent constants, F and R parameters. From the results of statistical analyses, the effect of substituents on the above spectral frequencies can be discussed.

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Thirunarayanan, Ganesamoorthy. "IR and NMR Spectral Studies of Some 4-(6-methoxy-2-naphthyl)-5,6-dihydro-6-(Substituted Phenyl)-<sup>4</sup><i>H</i>-1,3-Oxazine-2-Amines: Assessment of Substituent." International Letters of Chemistry, Physics and Astronomy 23 (November 30, 2013): 109–16. http://dx.doi.org/10.56431/p-h1w2ik.

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A series containing thirteen title compounds were synthesized and recorded IR and NMR spectra. The infrared νNH, C=N(cm-1)stretches, 1H NMR δNH, 13C NMR δC=N(ppm) chemical shifts of synthesized oxazine amines were assigned and correlated with Hammett substituent constants, F and R parameters. From the results of statistical analyses, the effect of substituents on the above spectral frequencies can be discussed.

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Şen, Fatih. "Structure determination, vibrational bands and chemical shift assignments of 3-(4-(3-(2,5-dimethylphenyl)-3-methylcyclobutyl)thiazol-2-yl)-2-(o-tolyl)thiazolidin-4-one: A combined experimental and quantum chemical density-functional theory studies." Macedonian Journal of Chemistry and Chemical Engineering 38, no. 2 (2019): 183. http://dx.doi.org/10.20450/mjcce.2019.1679.

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This paper report is an analysis of the title compound by means of X-ray crystallography, FT-IR, NMR and DFT calculations, in the context of structural and spectral characterization. The crystal and molecular structures of the compound were determined by single-crystal X-ray diffraction (SCXRD). Fourier Transform Infrared (FTIR) spectrum was recorded in the range from 400 cm–1 to 4000 cm–1. The 1H and 13C nuclear magnetic resonance (NMR) spectra were also recorded. DFT calculations were employed to support X-ray molecular geometry and calculate IR and NMR (1H and 13C) spectral bands. The struc

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Ilyas, Mohammad, Mehtab Perveen, Shafiullah, and Syed Mohmud Ahmad. "A Novel Chalcone from Garcinia Nervosa." Journal of Chemical Research 2002, no. 5 (2002): 231–33. http://dx.doi.org/10.3184/030823402103171799.

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A novel chalcone 5′-bromo-2′-hydroxy-4,4′,6′-trimethoxy-chalcone, isoliquiritigenin-4,4′-dimethyl ether (2′-hydroxy-4,4′-dimethoxy chalcone) and 2′-hydroxy-3,4,4′,6′-tetramethoxy dihydrochalcone have been isolated from the leaves of Garcinia nervosa. Their structure have been elucidated on the basis of chemical and spectral evidences (1H NMR, 13C NMR, HMQC, NOE, IR, UV and mass spectra).

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Dissertations / Theses on the topic "IR and 1H NMR spectra"

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Chakraborty, Saswata. "Mechanistic Study of Photo-bis-Decarbonylation of Alpha-Diketones." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1277056870.

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Mehridehnavi, Alireza. "Variable selection in neural networks for the classification of tumour tissue from '1H NMR spectra." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263843.

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Bouyssy, Pierre X. J. "'1H NMR studies of hydrogen and carbon monoxide chemisorption on the EUROPt-1 catalyst." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367319.

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Knight, Cheryl Lynn. "Application of IR and NMR spectroscopy to certain complexes of 8-hydroxyquinoline and 8-aminoquinoline." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/22001.

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The IR spectra of twenty-one transition metal complexes of 8-hydroxyquinoline over the range 700 - 50 cm⁻¹ are discussed in relation to their known or inferred structures. The complexes are of three types: (a) the bis(aquo) complexes of the first row transition metal(II) ions, [M(ox)₂(H₂O)₂] (M =Mn, Fe, Co, Ni, Cu, Zn); (b) the corresponding anhydrous complexes, [M(ox)₂]n (M=Mn, Co, Ni, Cu, Zn) and (c) the complexes of the metal(III) ions, [M(ox)₃] (M = Sc, V, Cr, Mn, Fe, Co, Ga, Rh and In). Deuterated 8-hydroxyquinoline was. synthesized by the Skraup synthesis and has been used to assist in t

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Marques, Leonel Vitorino Joaquim. "Transformations de phases du C60 sous pression." Université Joseph Fourier (Grenoble ; 1971-2015), 1996. http://www.theses.fr/1996GRE10188.

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Ce mémoire est consacré à l'étude du c60 sous pression. Le diagramme de phases pour le c60 a été établi pour des pressions inférieures à 80kbar. L'application de très hautes pressions (200kbar) à température ambiante transforme le c60 en carbone sp3 et en diamant. A plus basse pression et à haute température, le c60 est converti en carbone sp2 amorphe de type graphitique. Pour des pressions et des températures intermédiaires, trois nouvelles phases polymérisées du c60 ont été obtenues, la structure en cage y est conservée. La phase rhomboedrique et la phase quadratique sont des phases bi-dimen

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Lienemann, Kai [Verfasser]. "Advanced ensemble methods for automatic classification of 1H-NMR spectra / von Kai Lienemann." 2010. http://d-nb.info/1008219770/34.

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Prabhu, Uday Ramesh. "Development Of Two Dimensional Correlation And Resolved Methodologies For NMR Spectroscopic Discrimination Of Enantiomers." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1890.

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The research work reported in this thesis deals with the development of novel NMR experimental techniques for the spectroscopic discrimination of enantiomers dissolved in a chiral liquid crystalline medium. The information on the chemical shifts and coupling constants pertaining to each enantiomer has been derived on the investigated chiral molecules. The enantiomeric excess (ee), a parameter which is of profound importance in pharmaceutical industry and in asymmetric synthesis, has also been measured. A special attention is paid to the use of high sensitivity of H NMR for chiral discriminatio

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Prabhu, Uday Ramesh. "Development Of Two Dimensional Correlation And Resolved Methodologies For NMR Spectroscopic Discrimination Of Enantiomers." Thesis, 2010. http://hdl.handle.net/2005/1890.

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The research work reported in this thesis deals with the development of novel NMR experimental techniques for the spectroscopic discrimination of enantiomers dissolved in a chiral liquid crystalline medium. The information on the chemical shifts and coupling constants pertaining to each enantiomer has been derived on the investigated chiral molecules. The enantiomeric excess (ee), a parameter which is of profound importance in pharmaceutical industry and in asymmetric synthesis, has also been measured. A special attention is paid to the use of high sensitivity of H NMR for chiral discriminatio

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Liu, Jia-Wei, and 劉家瑋. "The Retention Time Alignment for Nontargeted LC/MS Analysis Using Kernel Density Estimation with a Novel Bandwidth Estimator and Phase Correction of Metabolomic 1D 1H-NMR Spectra." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/81822997660854800593.

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碩士<br>國立臺灣大學<br>資訊網路與多媒體研究所<br>103<br>This dissertation presents two developed algorithms for solving computational problems of detecting small molecules in the field of metabolomics analysis. In the first part of this dissertation, we present the tool – LAKE, which is a tool for detected peak alignment to align retention time for chromatographic methods coupled to spectrophotometers such as high performance liquid chromatography for metabolomics works. The existed tools for retention time correction still can’t properly aligning retention times of detected peaks from multiple batches and s

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Baishya, Bikash. "Spectral Simplification In Scalar And Dipolar Coupled Spins Using Multiple Quantum NMR : Developments Of Novel Methodologies." Thesis, 2008. https://etd.iisc.ac.in/handle/2005/793.

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Spin selective MQ-SQ correlation has been demonstrated by either selective pulses in homo-nuclear spin systems in isotropic and weakly orienting chiral media or by nonselective pulses in hetero-nuclear spin systems in strongly aligned media. As a consequence of the spin selective correlation, the coherence transfer pathway from MQ to SQ is spin state selective. This two dimensional approach enables the utilization of the passive couplings (remote couplings) to break a complex one dimensional spectrum into many sub spectra. Each sub spectrum contains fewer transitions and hence fewer couplings

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Books on the topic "IR and 1H NMR spectra"

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J, Pouchert Charles, Behnke Jacqlynn, and Aldrich Chemical Company, eds. The Aldrich library of 13C and 1H FT NMR spectra. Aldrich Chemical Co., 1993.

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Mehdi, Mobli, ed. Modelling 1H NMR spectra of organic compounds: Theory and applications. Wiley, 2008.

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Usuki, Yoshinosuke, Hidemitsu Uno, and Hiroshi Tsukube. Yūki supekutoru kaiseki: MS IR NMR dēta o yomu. Maruzen Shuppan, 2014.

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Nyquist, Richard A. IR and NMR spectral data-structure correlations for the carbonyl group. Sadtler Research Laboratories, 1986.

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5

Bugay, David E. Pharmaceutical excipients: Characterization by IR, Raman, and NMR spectroscopy. M. Dekker, 1999.

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Mobli, Mehdi, and Raymond Abraham. Modelling 1h NMR Spectra of Organic Compounds. Wiley & Sons, Incorporated, John, 2008.

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Mobli, Mehdi, and Raymond J. Abraham. Modelling 1H NMR Spectra of Organic Compounds: Theory, Applications and NMR Prediction Software. Wiley & Sons, Incorporated, John, 2008.

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Mobli, Mehdi, and Raymond Abraham. Modelling 1H NMR Spectra of Organic Compounds: Theory, Applications and NMR Prediction Software. Wiley & Sons, Limited, John, 2008.

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Zürich, Eidgenössische Technische Hochschule, ed. Integrated ¹³C-NMR, ¹H-NMR, IR, MS, and UV/Vis spectral database for spectra prediction and structure elucidation. 1996.

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Seco, Josi M., Emilio Quiqoa, and Ricardo Riguera. The Assignment of the Absolute Configuration by NMR using Chiral Derivatizing Agents. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780199996803.001.0001.

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Nuclear magnetic resonance spectroscopy (NMR spectroscopy) is a research technique that uses the magnetic properties of atomic nuclei to determine physical and chemical properties of atoms or the molecules in which they are contained. Proton NMR (1H NMR) is a technique that applies NMR spectroscopy specifically to the hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of that substance's molecules. The use of 1H NMR for the assignment of absolute configuration of organic compounds is a well-established technique. Recent research describes the technique's

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Book chapters on the topic "IR and 1H NMR spectra"

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Rothman, D. L., and R. G. Shulman. "1H NMR Spectra of the Human Brain." In Visualization of Brain Functions. Palgrave Macmillan UK, 1989. http://dx.doi.org/10.1007/978-1-349-10726-1_22.

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Ishida, Nobuaki, Hiromi Kano, and Hidejiro Ogawa. "1H-NMR Images and Localized Spectra of Foods." In Developments in Food Engineering. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2674-2_73.

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Benner, Axel. "Classification of Tumour 1H NMR Spectra using Nonlinear Approaches." In Compstat. Physica-Verlag HD, 1994. http://dx.doi.org/10.1007/978-3-642-52463-9_14.

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Alger, J. R. "Gathering Metabolic Information Using 13C and 1H High Resolution Spectra of Living Systems." In NMR in Living Systems. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4580-7_16.

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Francioso, O., S. Sánchez-Cortés, C. Ciavatta, J. V. García-Ramos, and C. Gessa. "Characterization of Humic Substances using FT-IR, Sers and (1H, 13C, 31P) NMR Spectroscopy." In Spectroscopy of Biological Molecules: Modern Trends. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5622-6_279.

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Nakano, Ryo, Hisashi Honda, Shin’ichi Ishimaru, and Sumiko Noro. "1H MAS, 13C CP/MAS, and 2H NMR spectra studies of piperidinium ${\emph{p}}$ -chlorobenzoate." In HFI / NQI 2012. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-6479-8_41.

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Francioso, O., S. Sánchez-Cortés, C. Ciavatta, C. Marzadori, J. V. García-Ramos, and C. Gessa. "Spectroscopic analysis (IR, Raman and 1H NMR) of low molecular weight organic fraction extracted from soil." In Spectroscopy of Biological Molecules: New Directions. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4479-7_263.

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Iakovidis, Akis, and Nick Hadjiliadis. "IR-Raman and 1H NMR Spectra of Some Amino Acid Chelates of the Type cis-[(NH3)2Pt(amac)](NO3), Where amac is the Anions of Glycine, L-Alanine. L-Aminobutyric Acid, L-Valine And L- Norvaline and of Ternary Complexes of the Type cis- [(NH3)2Pt(nucl)(amac)](NO3), Where nucl-9-Methylguanine (9- MeG), 1-Methylcytosine (1-MeC)." In Fifth International Conference on the Spectroscopy of Biological Molecules. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1934-4_67.

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Pulkkinen, Juhani, Mika Lappalainen, Anna-Maija Häkkinen, Nina Lundbom, Risto A. Kauppinen, and Yrjö Hiltunen. "Quantification of Human Brain Metabolites from In Vivo 1H NMR Magnitude Spectra Using Self-Organising Maps." In Intelligent Data Engineering and Automated Learning. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45080-1_71.

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Kleywegt, Gerard J., Rolf Boelens, and Robert Kaptein. "STELLA and CLAIRE: A Seraglio of Programs for Human-Aided Assignment of 2D 1H NMR Spectra of Proteins." In Computational Aspects of the Study of Biological Macromolecules by Nuclear Magnetic Resonance Spectroscopy. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-9794-7_34.

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Conference papers on the topic "IR and 1H NMR spectra"

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Chen, Shaohua, Tianping Huang, and Tao Chen. "Laboratory Synthesis and Performance Evaluation of a Phosphonate-type Scale Inhibitor." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-18784.

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Abstract A phosphonate-type scale inhibitor (SI) named diethylene triamine pentamethylene phosphonic acid (DETPMP) was synthesized in laboratory from two raw chemical materials – phosphorous acid (H3PO3) and phosphorous tri-chloride (PCl3). PCl3 was used to mimic the industrial synthesis of DETPMP, while H3PO3 was used to avoid the yield of by-product hydrochloride (HCl) acidic fog. The efficiency of scale inhibition against CaCO3 and CaSO4 by the synthesized samples and a commercial sample (CP-DETPMP) were evaluated in two types of brines, respectively, and the performance of three samples we

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Dubey, R. S., R. Sagar Dubey, S. N. Upadhyay, and T. K. G. Namboodhiri. "Control of Biofilm Formation in Marine Environment Using Some N2O2 Donor Schiff Bases." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97220.

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Abstract The adhesion of microorganisms onto materials surface mediated by extracellular polymeric substances (EPS) lead to an important modification of the metal-solution interface. The requirement of modem civilization with the hightened sense of environmental responsibilities and quality of life can be met by using some eco-friendly microbiocides with different spectra of activity. Some n2o2 donor schiff base compounds were synthesized and characterized by IR, NMR and ESR spectroscopy. These compounds were found effective in controling the growth of biofilm of E. соli, Pseudomonas fluoresce

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B.R, Athul, Venkatesh R, and Vadivelan G. "Synthesis and Characterization Studies of Benzimidazol-3-Ium Furan-2-Carboxylate Crystal." In The Second National Conference on Emerging Materials for Sustainable Future. Asian Research Association, 2024. http://dx.doi.org/10.54392/ara24111.

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A new charge transfer (CT) complex, Benzimidazol-3-ium furan-2-carboxylate (2FBI) was prepared and a method employed to purify solid compounds low temperature solution growth technique at comfortable temperature. The charge transfer compound was depicted using CHN analysis, Ultraviolet visible spectra, IR spectra, 1H NMR spectra, and thermal behavior. Thermogravimetric (TG) and differential thermal analysis are used to study its biological activities, including its antibacterial activity, which showed significant capacity against S. aureus and E. coli.

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Kosanović, Marta, Thomas Eichhorn, Dejan Milenković, Goran Kaluđerović, Jasmina Dimitrić Marković, and Dušan Dimić. "Synthesis, spectroscopic, and quantum-chemical analysis of mononuclear Ru(II)-naphthylhydrazine complex." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.391k.

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Ruthenium(II) complexes have become increasingly recognized and utilized as potent anticancer agents in recent years. These compounds possess unique capabilities in targeting cancer cells and interfering with vital cellular processes, offering new hope in the relentless battle against cancer. This research study focuses on the characterization of a newly synthesized Ru(II)-naphthylhydrazine complex by IR and NMR spectroscopies. NMR spectral data have revealed the presence of different chemical environments within 1 based on the chemical shifts observed in the 1H and 13C NMR spectra. The infrar

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Blaja, Svetlana, Lidia Lungu, Kaleria Kuchkova, Alexandru Ciocarlan, and Aculina Aricu. "Synthesis of new molecular hybrids with phenothiazine fragment from norambreinolide." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab10.

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The known phenothiazine derivatives exhibit a wide spectrum of biological activities, including such as antiparasitic, antioxidant, anticancer, antiproliferative, antineoplastic, antimicrobial, etc. [1]. For this reason, terpeno-phenothiazine molecular hybrids represent one of the priority strategies of organic synthesis in the design of new bioactive compounds. Here are reported the results of the synthesis of new homodrimane hybrids with a phenothiazine fragment. Starting from (+)-sclareolide 1 the Δ8,13-bicyclohomofarnesoic acid 2 and 11-homodrim-6(8)-dien-12-oic acid 3 were synthesized in

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Marković, Svetlana, and Jelena Tošović. "CHLOROGENIC ACID – APPLICATION OF CONTEMPORARY DENSITY FUNCTIONALS TO A SINGLE MOLECULE." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac,, 2021. http://dx.doi.org/10.46793/iccbi21.081m.

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Although chlorogenic acid (5-O-caffeoylquinic acid, 5CQA) is a dietary phenol known for its pharmacological and nutritional properties, its structural features and mechanisms of oxidative action have not been completely elucidated. Clarification of the 5CQA structure was conducted by comparing the experimental and simulated IR, Raman, 1H-NMR, 13C-NMR, and UV spectra. For this purpose, a comprehensive conformational analysis of 5CQA was performed to reveal its most stable conformations in the gas-state and solution. Excellent agreement between all experimental and simulated spectra indicates co

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Mostafavi, Hossein, and Rasul Khandan Bejandi. "Synthesis of Novel 1,3-Indandione Derivatives and Investigation Their Anti-Microbial and Anti-Fungal Activity." In 5th World Conference on Chemistry and Chemical Engineering and 5th World Conference on Advanced Materials, Nanoscience and Nanotechnology. Eurasia Conferences, 2024. https://doi.org/10.62422/978-81-970328-7-5-026.

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1,3 -Indanedione derivatives, which are of wide interest because of their diverse biological and chemical applications. A series of novel 1,3-Indanedione derivatives are synthesized via KNOEVENAGEL condensing reaction mechanism by condensing 1,3-Indanedione with diverse aryl aldehydes using2-hydroxyethyammonium formate as ionic liquid and catalyst. All the synthetic derivatives were fully characterized by spectral analysis data (FT-IR, 1H- 13C-NMR and elemental analysis). This series of 7 compounds were tested for in vitro anti-bacterial activity against Gram- negative Escherichia coli ATCC 25

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Li, Shuangyan, Lijuan Hao, Yong Yang, et al. "Synthesis and Characterization of Lysine Modified Chitosan Magnetic Microspheres: A Novel Gene Delivery System." In 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2007. http://dx.doi.org/10.1115/mnc2007-21141.

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This paper describes a new formulation of magnetic nanoparticles coated by a novel polymer lysine modified chitosan (CS-lys) as gene carrier. Lysine modified chitosan was synthesized by performing carboxyl of lysine and amido of chitosan in the presence of 1-Ethyl-3-(3-dimethyllaminopropyl) carbodiimide hydrochloride (EDC). The absolute chemistry of the Lysine modified chitosan obtained were characterized using IR and 1H NMR, respectively. The results indicated that many amines of chitosan were modificatied with lysine, and optimized the correlation conditions. The lysine modified chitosan mag

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Cojocari, Sergiu, Dmitri Bilan, and Fliur Macaev. "Synthesis and structure of compounds obtained from the interaction of (+) 3-carene monoterpene with potassium permanganate." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab06.

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At present one of the main features of the chemistry of natural cyclopropanes is determined by the great diversity/variability of their structures and properties. However, the low content of most optically active cyclopropanes obtained from natural sources is a priority and requires the urgent development of readily applicable methods for synthesis from available natural substances, e.g. (+)-3-carene monoterpene 1. A distinctive structural feature of (+)-3-carene is the presence in its molecule of a bicyclic bridge system consisting of methylcyclohexane, 2,2dimethylcyclopropane moieties and a

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Su, Haw-Lih, Rajeesha Rajan, Yousef Mohammad Hijji, Mohammad Ibrahim Ahmad Ibrahim, and Mohammed Hussain S. A. Alsafran. "Detecting Organic Nitrogen with 1H-15N HMBC Spectra." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0038.

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NMR spectroscopy has been the most important tool for organic chemistry research, providing detailed structure information. While 1H and 13C NMR spectra were frequently measured, 15N NMR spectra were relatively rare, even though nitrogen is commonly observed in organic molecules. This is due to the low gyromagnetic ratio and nature abundance. Usually 15N NMR spectra are observed when the sample is in very high concentration or the nitrogen is enriched with 15N isotope. HMBC is one of the 2D NMR techniques, measuring the through-bond correlations inside a molecule. 1H-15N HMBC actually collects

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Reports on the topic "IR and 1H NMR spectra"

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Chapman, Stephen, Darcy Burns, and Timothy Burrow. 1H and 13C NMR spectra of N6-allyl-6-norlysergic acid diethylamide (AL-LAD). Isomer Design, 2016. http://dx.doi.org/10.16889/isomerdesign-3.

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Chapman, Stephen, Darcy Bruns, and Timothy Burrow. 1H and 13C NMR spectra of (2′S,4′S)-lysergic acid 2,4-dimethylazetidide (LSZ). Isomer Design, 2016. http://dx.doi.org/10.16889/isomerdesign-4.

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Joel, Daniel M., John C. Steffens, and Alfred M. Mayer. Host-Elicited Germination and Mechanism of Penetration in Broomrape (Orobanche Spp.). United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568107.bard.

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Orobanche is an important parasitic weed. For developing novel methods for its control, a thorough understanding of crucial stages of its development is needed. Therefore, the objectives of this project were characterization of Orobanche germination stimulants, analysis of mechanisms of haustorial penetration, and characterization and isolation of penetration enzymes. The first highly potent natural germination stimulant for Orobanche was isolated from sunflower and identified by high-field 1D (1H and 13C), 2D (1H-1H COSY, HMQC, HMBC)-NMR, GC.FT-IR, and GC.MS as costuslactone, a guaiane type s

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