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Tuning the Electrochemical Potential of Perfunctionalized Dodecaborate Clusters Through Vertex Differentiation

preprint
submitted on 25.04.2018, 23:14 and posted on 26.04.2018, 13:39 by Alex I. Wixtrom, Zeeshan Parvez, Miles A. Savage, Elaine A. Qian, Dahee Jung, Saeed I. Khan, Arnold L. Rheingold, Alexander Spokoyny
We report a new class of redox-­‐active vertex-­‐differentiated dodecaborate clusters featuring pentafluoroaryl groups. These [B12(OR)11NO2] clusters share several unique photophysical properties with their [B12(OR)12] analogues, while exhibiting significantly higher (+0.5 V) redox potentials. This work describes the synthesis, characterization, and isolation of [B12(O-­‐CH2C6F5)11NO2] clusters in all 3 oxidation states (dianion, radical, and neutral). Reactivity to post-­‐functionalization with thiol species via SNAr on the pentafluoroaryl groups is also demonstated.

Funding

NIGMS (R35GM124746 and T32GM008496), NSF (1532232 and 1625776), 3M Non-Tenured Faculty Award, Alfred P. Sloan Foundation Fellowship

History

Email Address of Submitting Author

spokoyny@chem.ucla.edu

Institution

University of California, Los Angeles

Country

USA

ORCID For Submitting Author

0000-0002-5683-6240

Declaration of Conflict of Interest

none

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