Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials that have unpaired electrons. The basic concepts of EPR are analogous to those of nuclear magnetic resonance (NMR), but the spins excited are those of the electrons instead of the atomic nuclei .

2022年8月28日 · Electron paramagnetic resonance spectroscopy (EPR) is a powerful tool for investigating paramagnetic species, including organic radicals, inorganic radicals, and triplet states.

Explore the Compact Q-Band Pulsed EPR Spectrometer optimized for precise EPR distance measurements (PELDOR/DEER). Advanced microwave technology and cryogen-free cooling make it the ideal instruments for your researcher.

2023年1月30日 · Electron paramagnetic resonance spectroscopy (EPR), also called electron spin resonance (ESR), is a technique used to study chemical species with unpaired electrons. EPR spectroscopy plays an important role in the understanding of organic and inorganic radicals, transition metal complexes, and some biomolecules.

2022年8月22日 · Electron Spin Resonance (ESR) also known as Electron Magnetic Resonance (EMR) or Electron Paramagnetic Resonance (EPR) is a branch of absorption spectroscopy in which radiations having frequency in the microwave region (0.04 – 25 cm) is absorbed by paramagnetic substances to induce transitions between …

Electron paramagnetic resonance (EPR) spectroscopy detects unpaired electrons and provides detailed information on structure and bonding of paramagnetic species. In this tutorial review, aimed at non-specialists, we provide a theoretical framework and examples to illustrate the vast scope of the technique in chemical research.

2022年4月16日 · Electron Paramagnetic Resonance (EPR) is a remarkably useful form of spectroscopy used to study molecules or atoms with an unpaired electron. It is less widely used than NMR because stable molecules often do not have unpaired electrons (i.e., paramagnetic).

The energy differences we study in EPR spectroscopy are predominately due to the interaction of unpaired electrons in the sample with a magnetic field produced by a magnet in the laboratory.

The ELEXSYS E780 is the world's first commercial mm-wave very high frequency EPR spectrometer, representing a first step for Bruker into quasi-optical microwave technology.

EPR spectroscopy differs from other types of spectroscopies (such as NMR) in two major ways. First, in EPR spectroscopy the frequency of the electromagnetic radiation is constant, and the magnitude of the magnetic field is varied to satisfy eq. 1.