Nitrogen-15 NMR spectroscopy of N-metallated nucleic acids: insights into 15N NMR parameters and N–metal bonds

Yoshiyuki Tanaka; Akira Ono

doi:10.1039/B803510P

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Dalton Transactions

Issue 37, 2008

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Nitrogen-15 NMR spectroscopy of N-metallated nucleic acids: insights into ¹⁵N NMR parameters and N–metal bonds

Yoshiyuki Tanaka and Akira Ono

Dalton Trans., 2008, 4965-4974

DOI: 10.1039/B803510P
Received 28 Feb 2008, Accepted 15 May 2008
First published on the web 09 Jul 2008

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Abstract
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It was recently demonstrated spectroscopically that RNA/DNA nucleobases can bind to metal cations in aqueous solution through coordination bonds and covalent bonds. Nitrogen-15 (¹⁵N) NMR spectroscopy was employed and shown to be a powerful tool for determining the mode of metal ion binding to nitrogen atoms in RNA/DNA molecules. This review describes ¹⁵N NMR spectroscopic characteristics in accordance with the mode of metal ion binding to nitrogen atoms. The general rules for ¹⁵N chemical shift changes, which are applicable to the determination of the metal ion binding mode of N-metallated compounds, are also described.

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Dalton Transactions

Nitrogen-15 NMR spectroscopy of N-metallated nucleic acids: insights into ¹⁵N NMR parameters and N–metal bonds

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