Oxophenalenoxyl radicals

The ability of oxophenalenoxyl radicals to form functional organic materials was also examined by tetrathiafulvalene (TTF) molecule as an electron donor. It was fotmd that TTF-substituted oxophenalenoxyl radicals exhibited tunable intramolecular electron transfer (lET) by moderate change of external environments such as solvent and temperature in solution, leading to spin center transfer accompanied by solvato-/thermochromism (Fig. 10). There were two species involved in this process, a neutral radical 35 existing in dichloromethane solution with most of the spin localized on oxophenalenoxyl motif, and a zwitterionic radical 36 existing in trifluor-oethanol solution with spin localized on TTF moiety as radical cation species. 

Morita Y, Nishida S, Fukui K, Hatanaka K, Ohba T, Sato K, Shiomi D, Takui T, Yamamoto G, Nakasuji K (2005) 2-Aryl substituted 3-oxophenalenoxyl radicals Jt-spin structures and properties evaluated by dimer structure. Polyhedron 24 2194—2199... 

Morita Y, Nishida S, Kawai J, Takui T, Nakasuji K (2008) Oxophenalenoxyl novel stable neutral radicals with a unique spin-delocalized nature depending on topological symmetries and redox states. Pure Appl Chem 80 507-517... 

Nishida S, Morita Y, Ohba T, Fukui K, Sato K, Takui T, Nakasuji K (2007) Control in spin-delocalization into the 2-substituted 7C-systems in 3-oxophenalenoxyl neutral radicals evaluation by their dimeric structures and DFT calculations. Tetrahedron 63 7690-7695... 

Morita Y, Ohba T, Haneda N, Maid S, Kawai J, Hatanaka K, Sato K, Shiomi D, Takui T, Nakasuji K (2000) New persistent radicals synthesis and electronic spin structure of 2,5-di-tert-butyl-6-oxophenalenoxyl derivatives. J Am Chem Soc 122 4825 826... 

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