Difference between revisions of "Spectrochemical series"
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Latest revision as of 19:17, 21 September 2010
A spectrochemical series is a list of ligands ordered on ligand strength and a list of metal ions based on oxidation number, group and its identity. In crystal field theory, ligands modify the difference in energy between the d orbitals (Δ) called the ligand-field splitting parameter for ligands or the crystal-field splitting parameter, which is mainly reflected in differences in color of similar metal-ligand complexes.
A partial spectrochemical series listing of ligands from small Δ to large Δ:
I− < Br− < S2− < SCN− < Cl− < NO3− < N3− < F− < OH− < C2O42− ≈ H2O < NCS− < CH3CN < py (pyridine) < NH3 < en (ethylenediamine) < bipy (2,2'-bipyridine) < phen (1,10-phenanthroline) < NO2− < PPh3 < CN− ≈ CO
(for a table, see the ligand page)
See also
References
- Zumdahl, Steven S. Chemical Principles Fifth Edition. Boston: Houghton Mifflin Company, 2005. 550-551,957-964.
- D. F. Shriver and P. W. Atkins Inorganic Chemistry 3rd edition, Oxford University Press, 2001. Pages: 227-236.
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de:Spektrochemische Reihe es:Serie espectroquímica fr:Série spectrochimique it:Serie spettrochimica nl:Spectrochemische reeks ja:分光化学系列 zh:光谱化学序列
