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DNA as a catalyst and catalytic template for the racemisation of metal tris-phenanthroline complexes

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Rodger, Alison, Nordén, Bengt, Rodger, P. Mark and Bates, Paula J. (2002) DNA as a catalyst and catalytic template for the racemisation of metal tris-phenanthroline complexes. European Journal of Inorganic Chemistry, Vol.2002 (No.1). pp. 49-53. doi:10.1002/1099-0682(20021)2002:1<49::AID-EJIC49>3.0.CO;2-8

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Official URL: http://dx.doi.org/10.1002/1099-0682(20021)2002:1<4...

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Abstract

[Fe(1,10-phenanthroline)(3)](2+) is known to racemise in solution and DNA is known to shift the equilibrium point of the Delta/Lambda[Fe(1,10-phenanthroline)(3)](2+) mixture from 50:50 to a position favouring a slight excess of the Delta enantiomer. In this paper it is shown that DNA catalyses the racemisation reaction, presumably by providing vibrational energy to species that bind in a less favoured mode for that enantiomer. The racemisation of [Co(1,10-phenanthroline)(3)](3+), however, is not enhanced by DNA unless [Co(1,10-phenanthroline)(3)](2+) is also added to the solution. In this case, the DNA acts as a template to facilitate the Co-II reversible arrow Co-III electron transfer. Racemisation occurs while the [Co(1,10-phenanthroline)(3)](n+) is in the labile Co-II form.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH): Racemization, Enantiomers, DNA
Journal or Publication Title: European Journal of Inorganic Chemistry
Publisher: Wiley-VCH Verlag GMBH
ISSN: 1434-1948
Official Date: January 2002
Dates:
DateEvent
January 2002Published
Volume: Vol.2002
Number: No.1
Number of Pages: 5
Page Range: pp. 49-53
DOI: 10.1002/1099-0682(20021)2002:1<49::AID-EJIC49>3.0.CO;2-8
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

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