<P> Magnetochemistry is concerned with the magnetic properties of chemical compounds . Magnetic properties arise from the spin and orbital angular momentum of the electrons contained in a compound . Compounds are diamagnetic when they contain no unpaired electrons . Molecular compounds that contain one or more unpaired electrons are paramagnetic . The magnitude of the paramagnetism is expressed as an effective magnetic moment , μ . For first - row transition metals the magnitude of μ is , to a first approximation , a simple function of the number of unpaired electrons , the spin - only formula . In general , spin - orbit coupling causes μ to deviate from the spin - only formula . For the heavier transition metals , lanthanides and actinides , spin - orbit coupling can not be ignored . Exchange interaction can occur in clusters and infinite lattices , resulting in ferromagnetism , antiferromagnetism or ferrimagnetism depending on the relative orientations of the individual spins . </P>
<P> Magnetochemistry is concerned with the magnetic properties of chemical compounds . Magnetic properties arise from the spin and orbital angular momentum of the electrons contained in a compound . Compounds are diamagnetic when they contain no unpaired electrons . Molecular compounds that contain one or more unpaired electrons are paramagnetic . The magnitude of the paramagnetism is expressed as an effective magnetic moment , μ . For first - row transition metals the magnitude of μ is , to a first approximation , a simple function of the number of unpaired electrons , the spin - only formula . In general , spin - orbit coupling causes μ to deviate from the spin - only formula . For the heavier transition metals , lanthanides and actinides , spin - orbit coupling can not be ignored . Exchange interaction can occur in clusters and infinite lattices , resulting in ferromagnetism , antiferromagnetism or ferrimagnetism depending on the relative orientations of the individual spins . </P>
quenching of orbital angular momentum in transition metal complexes
quenching of orbital angular momentum in transition metal complexes
Magnetochemistry
Magnetochemistry