Magnetic resonance spectroscopy

Part 2 book "Nitrogen fixation - Methods and protocols" includes content: X-Ray crystallography; X-ray absorption spectroscopy, small angle X-ray scattering spectroscopy; electron paramagnetic resonance spectroscopy; magnetic circular dichroism spectroscopy; mössbauer spectroscopy; nitrogenase structure and function relationships by density functional theory; modeling the mofe nitrogenase system with broken symmetry density functional theory.

182p dianmotminh04 12-07-2024 0 0   Download

This paper reports the isolation of steroid and triterpene compounds from leaf chloroform extract residues and vine stems of S. juventas and the determination of their structure by nuclear magnetic resonance spectroscopy.

8p visergeyne 18-06-2024 0 0   Download

Ebook "Electron paramagnetic resonance: Elementary theory and practical applications (Second edition)" provides an introduction to the underlying theory, fundamentals, and applications of EPR spectroscopy, as well as new developments in the area. Knowledge of the topics presented will allow the reader to interpret of a wide range of EPR spectra, as well as help them to apply EPR techniques to problem solving in a wide range of areas: organic, inorganic, biological, and analytical chemistry; chemical physics, geophysics, and minerology.

687p coduathanh1122 27-03-2024 2 1   Download

Ebook "Electron spin resonance spectroscopy of organic radicals" is the method used to determine the structure and life expectancy of a number of radicals. Written by Fabian Gerson and Walter Huber, top experts in the field of electron spin resonance spectroscopy, this book offers a compact yet readily comprehensible introduction to the modern world of ESR.

442p coduathanh1122 27-03-2024 5 1   Download

Ebook "Principles and applications of ESR spectroscopy" fills the gap between the detailed monographs in ESR spectroscopy and the general textbooks in molecular physics, physical chemistry, biochemistry or spectroscopy. The latter only briefly explain the underlying theory and do not provide details about applications, while the currently available ESR textbooks are primarily focused on the technique as such.

468p manmanthanhla0201 26-02-2024 3 2   Download

Part 2 book "Quantum chemistry and spectroscopy" includes content: Quantum states for many electron atoms and atomic spectroscopy; the chemical bond in diatomic molecules; molecular structure and energy levels for polyatomic molecules; electronic spectroscopy; computational chemistry; molecular symmetry; nuclear magnetic resonance spectroscopy.

298p muasambanhan07 18-02-2024 3 1   Download

Ebook "Hyperpolarization methods in NMR spectroscopy" is believed to be suitable both for scientists working in the field of nuclear hyperpolarization and for researchers expecting to get a first glimpse of the subject. In addition, spectroscopists entirely unfamiliar with the methods presented here might use this collection of texts as a source of thought-provoking impulses to add, if desired, sensitivity-enhancing features to their particular experiments.

311p nhanphanguyet 28-01-2024 6 2   Download

Ebook "Protein NMR: Methods and protocols" covers state-of-the-art applications of solid-state and solution nuclear magnetic resonance( NMR) spectroscopy to study protein structure, dynamics and interactions. Chapters detail various aspects of data acquisition and processing, determination of the structure, multi-timescale dynamics of entities ranging from individual proteins to large macromolecular complexes to intact viral assemblies.

448p lucchinguyen 28-12-2023 11 2   Download

Ebook "An introduction to polymer physics" covering a wide range of topics within the field of polymer physics, the book begins with a brief history of the development of synthetic polymers and an overview of the methods of polymerisation and processing. In the following chapter, David Bower describes important experimental techniques used in the study of polymers.

465p loivantrinh 29-10-2023 5 3   Download

Part 1 of ebook "Metabolomics tools for natural product discovery: Methods and protocols" presents the following content: bryophytes - liverworts, mosses, and hornworts - extraction and isolation procedures; plant tissue extraction for metabolomics; detection of polar metabolites through the use of gas chromatography–mass spectrometry; metabolite analysis of biological fluids and tissues by proton nuclear magnetic resonance spectroscopy;...

155p dieptieuung 14-07-2023 4 1   Download

Deproteinized natural rubber/graphene oxide (DPNR/GO) nanocomposite was prepared and characterized in the present work. GO was synthesized by oxidation process via Hummer modified method, and it was characterized with X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, nuclear magnetic resonance (NMR), and water contact angle.

7p vihawkeye 26-05-2023 7 3   Download

This study describes the synthesis of magnetic nanohydrogels by miniemulsion polymerization technique. Dextran was derivatized by the glycidyl methacrylate to anchor vinyl groups on polysaccharides backbone, allowing its use as a macromonomer for miniemulsion polymerization, as confirmed by proton nuclear magnetic resonance spectroscopy (13C NMR).

8p vihermione 06-01-2023 6 3   Download

Structural determination of carbohydrates is mostly performed by liquid-state NMR, and it is a demanding task because the NMR signals of these biomolecules explore a rather narrow range of chemical shifts, with the result that the resonances of each monosaccharide unit heavily overlap with those of others, thus muddling their punctual identification.

20p viginny 30-12-2022 17 3   Download

The interactions and dynamic behavior of a select set of polar probe solutes have been investigated on three hydrophilic and polar commercial stationary phases using saturation transfer difference 1H nuclear magnetic resonance (STD-NMR) spectroscopy under magic angle spinning conditions.

13p viginny 23-12-2022 7 3   Download

A new nonglycosidic iridoid, sambulin B (1), was isolated from the methanol extract of Sambucus ebulus L. leaves along with a recently reported new nonglycosidic iridoid, 10-O-acetylpatrinoside aglycone (sambulin A) (2); 2 flavonoids, isorhamnetin-3-O-β -D-glucopyranoside (3) and isorhamnetin-3-O-rutinoside (4); and a mixture of 2 flavonoids (5), quercetin-3-O-β -D-glucopyranoside and quercetin-3-O-β -D-galactopyranoside. Their structures were elucidated by 1-D and 2-D nuclear magnetic resonance spectroscopy (NMR) and mass spectrometry (MS) experiments.

8p langthannam 29-12-2021 11 1   Download

A novel N–P-containing soybean-oil-based fire-retardant plasticizer was synthesized using soybean oil methyl ester, 9,10-dihydro-9-oxa-phosphaphenanthrene-10-oxide (DOPO), and tris(2-hydroxyethyl) isocyanurate (THEIC). The structure was verified by Fourier transform infrared (FTIR) spectrometry and nuclear magnetic resonance (NMR) spectroscopy. The blends were characterized by thermogravimetric analysis (TGA), FTIR spectrometry, scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA).

11p langthannam 29-12-2021 6 0   Download

Four new chiral Schiff base ligands (3a–4a, 3b–4b) have been prepared using aminoisopropylidene derivatives of glucose and aminochloralose derivatives of mannose. The synthesized compounds 1 and 2 were characterized by nuclear magnetic resonance ( 1 H and 13 C NMR), Fourier transform infrared spectroscopy (FTIR), UV/visible spectroscopy, and elemental analysis.

11p langthannam 29-12-2021 7 0   Download

A general synthetic method was improved to synthesize a chemosensor based on a tripodal Bodipy (t-BODIPY) structure. The product and its intermediate products were successfully prepared and fully characterized. The metal ion sensing performance of the tripodal compound was evaluated by UV/Vis and fluorescence spectroscopies. According to the obtained data, t-BODIPY is a selective and sensitive fluorescence probe for detection of Cu2+ ions in the presence and in the absence of competing ions. This chemosensor presents relatively a low detection limit of 5.4 x10–7 M for Cu2+.

33p langthannam 29-12-2021 7 0   Download

Chemical Analysis: Modern Instrumentation Methods and Techniques (Second Edition) - Part 2 present the content: atomic emission spectroscopy, nuclear magnetic resonance spectroscopy, mass spectrometry, labelling methods, elemental analysis, potentiometric methods, voltammetric and coulometric methods, sample preparation, basic statistical parameters, optimization through the one-factor-at-a-time (OFAT),...

267p bachkhinhdaluu 03-12-2021 14 1   Download

Four metallo (zinc, copper, vanadyl, and indium) phthalocyanine derivatives bearing four aliphatic (hexylthio) groups were prepared from corresponding phthalonitrile compounds. The metallophthalocyanines were characterized with ultraviolet–visible spectroscopy (UV-Vis), proton nuclear magnetic resonance (1H NMR), Fourier transform-infrared spectroscopy (FT-IR), and mass and elemental analyses techniques. Aggregation properties of metallophthalocyanines in solution were studied in varied concentration ranges. Thin films of metallophthalocyanines were obtained by spin coating technique.

8p tudichquannguyet 29-11-2021 9 1   Download