01988nas a2200217   4500008004100000022001400041245009400055210006900149260007100218300001400289490000800303520118000311100001901491700002301510700001901533700002001552700002301572700002401595700002401619856012701643       2015                        eng d  a0002-786300aSwitching closed-shell to open-shell phenalenyl: toward designing electroactive materials0 aSwitching closedshell to openshell phenalenyl toward designing e  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAY  a5955-59600 v1373 a<p>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, Fe-III(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 Fe-III(PLY)(3) is nearly 15-fold higher than the structurally related model compound Fe-III(acac)(3) (acac = acetylacetonate) and nearly 140-fold higher than an earlier reported mononuclear Fe(III) complex; Fe-III(Pc)Cl (Pc = pthalocyaninate), highlighting the role of switchable closed-shell phenalenyl moiety for electron-transfer process in designing electroactive materials.</p>1 aPariyar, Anand1 aVijaykumar, Gonela1 aBhunia, Mrinal1 aDey, Suman, Kr.1 aSingh, Santosh, K.1 aKurungot, Sreekumar1 aMandal, Swadhin, K.  uhttps://library.ncl.res.in/content/switching-closed-shell-open-shell-phenalenyl-toward-designing-electroactive-materials-0