Magnetism and Susceptibility

Essay # 1973

Chemistry

An experimental analysis of magnetic susceptibility.

1,543 words () | 4 sources | 2000 United States

From the Paper:

"The synthesis of a magnetic susceptibility standard proved to be Hg[Co(NCS)4] through mercury analysis and magnetic measurements. Magnetic susceptibility characterization of four nickel(II) complexes, Ni(Et2en)2Cl2-2H20, Ni(Et2en)2(NCS)2, Ni(Et2en)2(NO3)2, and Ni(Et2en)2I2, is reported. Et2en is a bidentate ligand, which is bonded strongly to the Ni(II) metal center.
Ni(Et2en)2Cl2-2H2O and Ni(Et2en)2(NCS)2 were both paramagnetic with two unpaired electrons and had Ueff values of 3.17 B.M. and 3.20 B.M., respectively. Ni(Et2en)2(NO3)2 and Ni(Et2en)2I2 were both diamagnetic with no unpaired electrons and had Ueff values of 1.80 B.M. and 1.71 B.M., respectively. The color of the compounds correlates with their magnetic properties, where blue to violet compounds are paramagnetic and yellow to red complexes are diamagnetic."