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In molecular physics, crystal field theory (CFT) describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding charge distribution (anion neighbors).
Crystal field theory (CFT) describes the breaking of orbital degeneracy in transition metal complexes due to the presence of ligands. CFT qualitatively describes the strength of the metal-ligand bonds. Based on the strength of the metal-ligand bonds, the energy of the system is altered.
Crystal field theory (CFT) is a bonding model that explains many properties of transition metals that cannot be explained using valence bond theory. In CFT, complex formation is assumed to be due to electrostatic interactions between a central metal ion and a set of negatively charged ligands or ligand dipoles arranged around the metal ion.
Crystal Field Theory (CFT), introduced in the early 20th century by Hans Bethe and later developed by J. H. Van Vleck and Linus Pauling, revolutionized the understanding of transition metal complexes. CFT focuses on the interaction between the d-orbitals of the central metal ion and the ligand field generated by surrounding ligands.
Crystal field theory views the ions and groups in complexes in terms of their spatial relationships and the interactions based on their electrostatic attraction and repulsion. It is called “crystal field” theory because it derives from a theory developed for the energy relationships of ions in crystals.
In this section, we describe crystal field theory (CFT), a bonding model that explains many important properties of transition-metal complexes, including their colors, magnetism, structures, stability, and reactivity.
1 de oct. de 2022 · Crystal-field theory describes the Stark effect of outer-shell valence electrons embedded in the electrostatic potential field originating from the neighboring anionic ligands.
