Difference between revisions of "Circular dichroism"
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Revision as of 21:34, 24 February 2016
Circular dichroism (CD) refers to the differential absorption of left and right circularly polarized light.[1][2] This phenomenon was discovered by Jean-Baptiste Biot, Augustin Fresnel, and Aimé Cotton in the first half of the 19th century.[3] It is exhibited in the absorption bands of optically active chiral molecules.
Circular dichroism spectroscopy
CD spectroscopy has a wide range of applications in many different fields. Most notably, UV CD is used to investigate the secondary structure of proteins.[4] UV/Vis CD is used to investigate charge-transfer transitions.[5] Near-infrared CD is used to investigate geometric and electronic structure by probing metal d→d transitions.[2] Vibrational circular dichroism, which uses light from the infrared energy region, is used for structural studies of small organic molecules, and most recently proteins and DNA.[4]
References
- ↑ P. Atkins and J. de Paula (2005). Elements of Physical Chemistry, 4th ed.. Oxford University Press. ISBN 0716773295.
- ↑ 2.0 2.1 Edward I. Solomon; A. B. P. Lever (3 February 2006). Inorganic electronic structure and spectroscopy. Wiley-Interscience. p. 78. ISBN 9780471971245. http://books.google.com/books?id=C7KaQgAACAAJ. Retrieved 29 April 2011.
- ↑ Gerald D. Fasman (1996). Circular dichroism and the conformational analysis of biomolecules. Springer. pp. 3–. ISBN 9780306451423. http://books.google.com/books?id=ivc0FaowEYMC&pg=PA3. Retrieved 29 April 2011.
- ↑ 4.0 4.1 Kōji Nakanishi; Nina Berova; Robert Woody (1994). Circular dichroism: principles and applications. VCH. p. 473. ISBN 9781560816188. http://books.google.com/books?id=aNWjQgAACAAJ. Retrieved 29 April 2011.
- ↑ Solomon, Neidig; A. T. Wecksler, G. Schenk, and T. R. Holman (2007). "Kinetic and Spectroscopic Studies of N694C Lipoxygenase: A Probe of the Substrate Activation Mechanism of a Nonheme Ferric Enzyme". J. Amer. Chem. Soc. 129 (24): 7531–7537. doi:10.1021/ja068503d. PMC 2896304. PMID 17523638. https://www.ncbi.nlm.nih.gov/pmc/articles/2896304.
