Nuclear magnetic resonance (NMR) is a physical phenomenon that depends on the quantitative mechanical magnetic properties of the nucleus of the atom. NMR is used to denote a set of scientific methodologies and techniques. This phenomenon is used to study molecules in terms of structure and spatial composition. The phenomenon is mainly based on the fact that all atomic nuclei that have an odd number of protons or neutrons have intrinsic magnetic torque and angular momentum. The nuclei used in these techniques are the nucleus of the hydrogen atom H1, the most abundant isotope of hydrogen, Carbon-13. Other isotopes can be used but their uses are less. The spinning motion of these elements revolves around a magnetic moment (M) axis. When these nuclei are placed between poles of an external magnetic field, they influence the energy levels of the spin energy level of these nuclei, resulting in dissociation of energy splitting The spherical motion to two different energy levels is based on the direction of the magnetic momentum resulting from the spindle motion
Inhaltsverzeichnis (Table of Contents)
- Nuclear Magnetic Resonance (NMR)Introduction:
- ABSORPTION OF LIGHT ENERGY (Photons)
- Form (6.1): The power of the electromagnetic motion and expresses the spectrum.
- Form (6.2): the tendency of the nuclei when placed in a magnetic field and the value of magnetic torque
- Number of Number of Spin number
- Examples
- protons
- neutrons
- Table (6.1): The spinning of some nuclei.
- No magnetic field
- In the magnetic field
- Figure (6-2): direction of the nuclei when placed in a magnetic field.
Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)
This chapter aims to introduce the fundamentals of Nuclear Magnetic Resonance (NMR) and explore its applications in understanding the structure and composition of molecules. It delves into the physical phenomenon behind NMR, explaining how the magnetic properties of atomic nuclei are exploited to study molecular properties.
- The principles of NMR spectroscopy
- The influence of magnetic fields on atomic nuclei
- The role of radiofrequency radiation in NMR
- The interpretation of NMR spectra
- Applications of NMR in various fields, including chemistry, biology, and medicine
Zusammenfassung der Kapitel (Chapter Summaries)
The chapter begins by defining NMR as a physical phenomenon based on the magnetic properties of atomic nuclei. It highlights the use of hydrogen-1 (H1) and carbon-13 (C13) nuclei in NMR spectroscopy, explaining their unique magnetic characteristics. The chapter then discusses the influence of external magnetic fields on the energy levels of these nuclei, leading to the concept of spin energy levels.
The chapter further explores the absorption of radiofrequency radiation by nuclei, resulting in transitions between these energy levels. This absorption of energy is detected and analyzed to generate an NMR spectrum, which provides information about the structure and composition of molecules. The chapter concludes by emphasizing the role of NMR in various scientific disciplines, highlighting its importance in fields such as chemistry, biology, and medicine.
Schlüsselwörter (Keywords)
The primary focus of this chapter is on the fundamental principles and applications of Nuclear Magnetic Resonance (NMR) spectroscopy. Key concepts include magnetic properties of atomic nuclei, spin energy levels, radiofrequency radiation, NMR spectra, and the use of NMR in structural analysis and molecular characterization.
- Quote paper
- Sultan Alshammari (Author), 2018, Review Chapter in Nuclear Magnetic Resonance (NMR), Munich, GRIN Verlag, https://www.hausarbeiten.de/document/442841