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	クリスタル場理論	X線結晶構造解析
分野	化学	化学
系統	Process / pipeline	Process / pipeline
提唱年	1929	1912
提唱者	Hans Bethe	William Henry Bragg & William Lawrence Bragg
種類	Theoretical model	Structural determination technique
原典	Bethe, H. (1929). Termaufspaltung in Kristallen. Annalen der Physik, 3(5), 133–208.	Bragg, W. H., & Bragg, W. L. (1913). The reflection of X-rays by crystals. Proceedings of the Royal Society of London, 88(605), 428–438.
別名	CFT, crystal field, ligand field theory	X-ray diffraction, crystallography, single-crystal X-ray
関連	3	3
概要	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.	X-ray crystallography is a technique that determines the three-dimensional atomic structure of crystals by analyzing the diffraction patterns produced when X-rays pass through them. Developed by William Henry Bragg and William Lawrence Bragg in 1912, X-ray crystallography has become the gold standard for structure determination in chemistry, biochemistry, and materials science, winning multiple Nobel Prizes for its profound impact.