Pariyar, Anand ; Vijaykumar, Gonela ; Bhunia, Mrinal ; Dey, Suman Kr. ; Singh, Santosh K. ; Kurungot, Sreekumar ; Mandal, Swadhin K. (2015) Switching Closed-Shell to Open-Shell Phenalenyl: Toward Designing Electroactive Materials Journal of the American Chemical Society, 137 (18). pp. 5955-5960. ISSN 0002-7863
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Official URL: http://doi.org/10.1021/jacs.5b00272
Related URL: http://dx.doi.org/10.1021/jacs.5b00272
Abstract
Open-shell phenalenyl chemistry started more than half a century back, and the first solid-state phenalenyl radical was realized only 15 years ago highlighting the synthetic challenges associated in stabilizing carbon-based radical chemistry, though it has great promise as building blocks for molecular electronics and multifunctional materials. Alternatively, stable closed-shell phenalenyl has tremendous potential as it can be utilized to create an in situ open-shell state by external spin injection. In the present study, we have designed a closed-shell phenalenyl-based iron(III) complex, FeIII(PLY)3 (PLY-H = 9-hydroxyphenalenone) displaying an excellent electrocatalytic property as cathode material for one compartment membraneless H2O2 fuel cell. The power density output of FeIII(PLY)3 is nearly 15-fold higher than the structurally related model compound FeIII(acac)3 (acac = acetylacetonate) and nearly 140-fold higher than an earlier reported mononuclear Fe(III) complex, FeIII(Pc)Cl (Pc = pthalocyaninate), highlighting the role of switchable closed-shell phenalenyl moiety for electron-transfer process in designing electroactive materials.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Chemical Society. |
ID Code: | 118301 |
Deposited On: | 20 May 2021 05:09 |
Last Modified: | 20 May 2021 05:09 |
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