The Formation of Cyclic Compounds From Derivatives of Diphenyl. Part Ii. The Formation of 4,5,9,10-Dibenzopyrene and 4,5-Diphenyl-Diphenylene Oxide From 6,6′-Diphenyl-Diphenyl-2,2′-Terazonium Sulphate

Polyphenylene Nanostructures

“…The systematic variation of size and shape of PAHs, i.e., of 2-dimensional nanostructures, can also be used to build up a homologous series, such as the one comprising C 24 ( 158 ), , C 42 ( 140 ), C 60 ( 159a ), C 78 ( 3 ), and C 96 ( 160 ) 230 (C x = C 6 + n C 18 , n ≥ 1) leading to an all-ribbon polymer with C 4 (Chart 8). It should be noted that there is a systematic increase in area of the disc-type molecular graphite subunits down the series.…”

Gas-phase preparation of the dibenzo[e,l]pyrene (C24H14) butterfly molecule via a phenyl radical-mediated ring annulation

“…Since the first synthesis of the 24-π dibenzo[ e,l ]pyrene (C 24 H 14 ) molecule by Sako in 1934, 1 pyrenes—derivatives of peri-fused polycyclic aromatic hydrocarbon (PAH) pyrene (C 16 H 10 , 1 ) (Fig. 1) carrying four fused benzene rings—have garnered considerable attention from the physical chemistry, organic chemistry, and materials science communities due to their optoelectronic properties as organic semiconductors and metal-free sensitizers in dye sensitized solar cells (DSSCs), and their potential incorporation as a molecular electron transfer building block in lithium-ion batteries.…”