Wixtrom AI, Parvez ZA, Savage MD, Qian EA, Jung D, Khan SI, Rheingold AL, Spokoyny AM. Tuning the electrochemical potential of perfunctionalized dodecaborate clusters through vertex differentiation.
Chem Commun (Camb) 2018;
54:5867-5870. [PMID:
29785419 PMCID:
PMC6015501 DOI:
10.1039/c8cc03477j]
[Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
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 demonstrated.
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