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	K শর্তieldteori	Ligandfältanalys	Stereokemisk analys
Ämnesområde	Kemi	Kemi	Kemi
Familj	Process / pipeline	Process / pipeline	Process / pipeline
Ursprungsår	1929	1960s	1966
Upphovsperson	Hans Bethe	Brian Norman Figgis	Cahn, Ingold, & Prelog
Typ	Theoretical model	Theoretical model	Nomenclature system
Ursprungskälla	Bethe, H. (1929). Termaufspaltung in Kristallen. Annalen der Physik, 3(5), 133–208.	Figgis, B. N. (1966). Introduction to Ligand Fields. Interscience Publishers. ISBN: 978-0471257356	Cahn, R. S., Ingold, C., & Prelog, V. (1966). Specification of molecular chirality. Angewandte Chemie International Edition, 5(4), 385–415.
Alias	CFT, crystal field, ligand field theory	ligand field, LFT, ligand field theory	stereochemical analysis, configuration assignment, chirality analysis
Närliggande	3	3	3
Sammanfattning	Crystal Field Theory (CFT) is a model that explains the electronic structure, color, magnetism, and reactivity of coordination complexes by considering how the electric field created by surrounding ligands perturbs the d-orbitals of a central metal ion. Developed by Hans Bethe in 1929 and refined throughout the 20th century, CFT is one of the most powerful tools for understanding inorganic chemistry.	Ligand Field Theory (LFT) is an advanced model of metal-ligand bonding that combines crystal field theory with molecular orbital theory. Developed systematically by Brian Norman Figgis and others from the 1960s onward, LFT provides quantitative predictions of electronic structure, magnetism, spectra, and reactivity of coordination complexes, bridging the gap between qualitative crystal field arguments and rigorous quantum mechanics.	Stereochemistry analysis is the systematic study of three-dimensional molecular structures, with emphasis on determining the spatial arrangement of atoms around chiral centers and assigning unambiguous names to stereoisomers. Formalized by Cahn, Ingold, and Prelog in 1966, the CIP (Cahn-Ingold-Prelog) rules provide an objective method for assigning R/S (or E/Z) nomenclature, enabling unambiguous communication of molecular structure.