Direct detection of the mercury–nitrogen bond in the thymine–Hg II –thymine base-pair with 199 Hg NMR spectroscopy

Direct detection of the mercury–nitrogen bond in the thymine–Hg II –thymine base-pair with 199 Hg NMR spectroscopy

We have observed the 1-bond 199 Hg– 15 N J -coupling ( 1 J ( 199 Hg, 15 N) = 1050 Hz) within the Hg II -mediated thymine–thymine base pair (T–Hg II –T). This strikingly large 1 J ( 199 Hg, 15 N) is the first one for canonical sp 2 -nitrogen atoms, which can be a sensitive structure-probe of N-mercur...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2015, Vol.51 (40), p.8488-8491
Hauptverfasser: Dairaku, Takenori, Furuita, Kyoko, Sato, Hajime, Šebera, Jakub, Yamanaka, Daichi, Otaki, Hiroyuki, Kikkawa, Shoko, Kondo, Yoshinori, Katahira, Ritsuko, Matthias Bickelhaupt, F., Fonseca Guerra, Célia, Ono, Akira, Sychrovský, Vladimír, Kojima, Chojiro, Tanaka, Yoshiyuki
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Sprache:eng
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Zusammenfassung:We have observed the 1-bond 199 Hg– 15 N J -coupling ( 1 J ( 199 Hg, 15 N) = 1050 Hz) within the Hg II -mediated thymine–thymine base pair (T–Hg II –T). This strikingly large 1 J ( 199 Hg, 15 N) is the first one for canonical sp 2 -nitrogen atoms, which can be a sensitive structure-probe of N-mercurated compounds and a direct evidence for N-mercuration.
ISSN:1359-7345
1364-548X
DOI:10.1039/C5CC02423D