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Synthesis of cis-[Cr(diimine)2(1-methylimidazole)2]3+ Complexes and an Investigation of Their Interaction with Mononucleotides and Polynucleotides

Vol: 55, Issue: 4
2016
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Artifact Description

A protocol is presented for the synthesis of chromium(III) complexes of the type cis-[Cr(diimine)2(1-methylimidazole)2]3+. These compounds exhibit large excited- state oxidizing powers and strong luminescence in solution.Emission is quenched by added guanine, yielding rate constants that track the driving force for guanine oxidation. The cis-[Cr(TMP)(DPPZ)(1-MeImid)2]3+species binds strongly to duplex DNA with a preference for AT base sites in the minor groove and may serve as a precursor for photo activated DNA covalent adduct formation.

Bibliographic Details

Sarah K Goforth; Thomas W Gill; April E Weisbruch; Kimberlee A Kane-Maguire; Marian E Helsel; Katherine W Sun; Hillary D Rodgers; Floyd E Stanley; Samuel R Goudy; Sandra K. Wheeler; John F Wheeler; Noel A P Kane-Maguire

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