TY - JOUR
T1 - Effect of cytosine-Ag+-cytosine base pairing on the redox potential of the Ag+/Ag couple and the chemical reduction of Ag+to Ag by tetrathiafulvalene
AU - Dairaku, Takenori
AU - Kawai, Rika
AU - Kanaba, Teppei
AU - Ono, Tetsuya
AU - Yoshida, Kentaro
AU - Sato, Hajime
AU - Nozawa-Kumada, Kanako
AU - Kondo, Yoshinori
AU - Kondo, Jiro
AU - Ono, Akira
AU - Tanaka, Yoshiyuki
AU - Kashiwagi, Yoshitomo
N1 - Funding Information:
This work was supported by JSPS KAKENHI (Grant No. 20K14597 to T.D., 18K06791 to K.Y., and 18K19936 to Y.Ka.), the Foundation for Japanese Chemical Research (Grant No. 470 (R) to T.D.), and the Foundation for Ohu University Joint Research Fund.
Publisher Copyright:
© The Royal Society of Chemistry 2021.
PY - 2021/6/14
Y1 - 2021/6/14
N2 - The redox properties of metallo-base pairs remain to be elucidated. Herein, we report the detailed1H/13C/109Ag NMR spectroscopic and cyclic voltammetric characterisation of the [Ag(cytidine)2]+complex as isolated cytosine-Ag+-cytosine (C-Ag+-C) base pairs. We also performed comparative studies between cytidine/Ag+and other nucleoside/Ag+systems by using cyclic voltammetry measurements. In addition, to evaluate the effect of [Ag(cytidine)2]+formation on the chemical reduction of Ag+to Ag, we utilised the redox reaction between Ag+and tetrathiafulvalene (TTF). We found that Ag+-mediated base pairing lowers the redox potential of the Ag+/Ag couple. In addition, C-Ag+-C base pairing makes it more difficult to reduce captured Ag+ions than in other nucleoside/Ag+systems. Remarkably, the cytidine/Ag+system can be utilised to control the redox potential of the Ag+/Ag couple in DMSO. This feature of the cytidine/Ag+system may be exploited for Ag nanoparticle synthesis by using the redox reaction between Ag+and TTF.
AB - The redox properties of metallo-base pairs remain to be elucidated. Herein, we report the detailed1H/13C/109Ag NMR spectroscopic and cyclic voltammetric characterisation of the [Ag(cytidine)2]+complex as isolated cytosine-Ag+-cytosine (C-Ag+-C) base pairs. We also performed comparative studies between cytidine/Ag+and other nucleoside/Ag+systems by using cyclic voltammetry measurements. In addition, to evaluate the effect of [Ag(cytidine)2]+formation on the chemical reduction of Ag+to Ag, we utilised the redox reaction between Ag+and tetrathiafulvalene (TTF). We found that Ag+-mediated base pairing lowers the redox potential of the Ag+/Ag couple. In addition, C-Ag+-C base pairing makes it more difficult to reduce captured Ag+ions than in other nucleoside/Ag+systems. Remarkably, the cytidine/Ag+system can be utilised to control the redox potential of the Ag+/Ag couple in DMSO. This feature of the cytidine/Ag+system may be exploited for Ag nanoparticle synthesis by using the redox reaction between Ag+and TTF.
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U2 - 10.1039/d1dt00975c
DO - 10.1039/d1dt00975c
M3 - Article
C2 - 33973617
AN - SCOPUS:85107719486
VL - 50
SP - 7633
EP - 7639
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 22
ER -