Syntheses and crystal structures of 1,2:5,6:9,10:13,14:17,18:21,22-hexabenzo-3,7,11,15,19,23-hexadehydro[24]annulene (HBC), 1,2:5,6:9,10:13,14-tetrabenzo-3,7,11,15-tetradehydro[16]annulene (QBC) and a tetracobalt complex of QBC. The first example of a transition metal complex of QBC Pages 231-236 Don Solooki, John D. Bradshaw, Claire A. Tessier, Wiley J. Youngs, Ronald F. See and, Melvyn Churchill, Joseph D. Ferrara
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