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Issue 13, 2017
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Anion-regulated electronic communication in a cyclometalated diruthenium complex with a urea bridge

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Abstract

A combined study of electrochemical measurements, intervalence charge transfer analysis, and DFT calculations suggests that the degree of urea-mediated electronic coupling between two cyclometalated ruthenium sites is enhanced by the coordination of urea with Br or Clvia hydrogen bonding. In contrast, the redox waves of the diruthenium complex become highly irreversible in the presence of relatively strong basic anions such as H2PO4, F, or OAc. This work demonstrates that the anion–urea interaction can be employed to regulate the electronic coupling and electron transfer between redox-active sites, suggesting the potential applications of the urea-functionalized diruthenium complex in anion sensing and stimuli-responsive molecular electronics.

Graphical abstract: Anion-regulated electronic communication in a cyclometalated diruthenium complex with a urea bridge

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Publication details

The article was received on 23 Nov 2016, accepted on 07 Mar 2017 and first published on 07 Mar 2017


Article type: Paper
DOI: 10.1039/C6CP08019G
Citation: Phys. Chem. Chem. Phys., 2017,19, 8902-8907
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    Anion-regulated electronic communication in a cyclometalated diruthenium complex with a urea bridge

    Z. Gong, L. Deng, Y. Zhong and J. Yao, Phys. Chem. Chem. Phys., 2017, 19, 8902
    DOI: 10.1039/C6CP08019G

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