New stable neutral radical with intramolecular hydrogen bonding: synthesis and characterization of 2,5,8-tri-tert-butyl-7-hydroxy-6-oxophenalenoxyl |
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| Authors: | Morita Y Maki S Fukui K Ohba T Kawai J Sato K Shiomi D Takui T Nakasuji K |
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| Institution: | Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. morita@chem.sci.osaka-u.ac.jp |
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| Abstract: | A new stable neutral radical with intramolecular hydrogen bonding, 2,5,8-tri-tert-butyl-7-hydroxy-6-oxophenalenoxyl, was synthesized from the corresponding dihydroxyphenalenone and isolated as a stable solid under air atmosphere at room temperature. The structure was unequivocally determined by means of IR spectra, ESR/ENDOR techniques, and DFT calculations. |
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