Abstract
X]C (2a,X=Br; 2b,X=I)obtained bytheoxidationof1withhalogens.The derivative 2bhas been structurally characterized in thesolidstatebyX-raycrystallography.ThesolutionbehaviorofthesenovelradicalsystemshasbeeninvestigatedbyEPRandUV/Visspectroscopies.The reactions of the dimer1 with one equivalent ofbromineoriodineinamixtureoftolueneandTHFat295Kproduce deep blue solutions immediately. Removal of thesolventsgives2aor2b,respectively,asbluepowdersingoodyields. Crystals of 2b suitable for an X-ray structuraldetermination
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