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. Mhz, ? 7.78 (s, 4 H)

, bis(1?(4?bromophenyl)diazene) (20). to r.t., diluted with CH 2 Cl 2 (50 mL), washed with water (3 x 100 mL), dried over MgSO 4 , evaporated and purified by column chromatography (cyclohexane/ CH 2 Cl 2, p.26

, 1.71 (m, 6 H), vol.2

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, olan?2?yl)phenyl)diazene) (AB?3HT?(BPin) 2 ) (21)

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