EPR Spectrum Analysis of DPPH and MnCl2

This paper presents the findings of electron paramagnetic resonance (EPR) spectroscopy experiments conducted on two different samples: 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Manganese Chloride (MnCl2) dissolved in H2O. The were at Dr. D. Petasis EPR lab located Allegheny College, Meadville, PA, USA. A Varian X-Band spectrometer was utilized for analysis absorption spectra. primary objective to determine g-values hyperfine structure samples, which can be crucial characterizing their electronic properties. obtained both DPPH MnCl2 found remarkably close theoretically calculated values, suggesting high accuracy success experiments. agreement validates reliability measurements demonstrates precision instruments experimental procedures employed. For sample, a with 6 visible lines observed. By analyzing number lines, nuclear spin Mn(II) ion determined I = 5/2, consistent expected value Mn(II). constant (A) also from field position differences between adjacent providing further insights into sample's magnetic Comparisons made values literature, confirming reinforcing credibility data. Overall, H2O have provided valuable information about properties these materials. results demonstrate effectiveness as powerful technique investigating various bio-chemical samples understanding effects solvents spectra compounds. theoretical g-factors constants reinforces data