《Two-Photon Absorption Enhancement by the Inclusion of a Tropone Ring in Distorted Nanographene Ribbons》 was written by Castro-Fernandez, Silvia; Cruz, Carlos M.; Mariz, Ines F. A.; Marquez, Irene R.; Jimenez, Vicente G.; Palomino-Ruiz, Lucia; Cuerva, Juan M.; Macoas, Ermelinda; Campana, Araceli G.. Category: iodides-buliding-blocksThis research focused ontwo photon absorption tropone ring distorted nanographene ribbon; carbon materials; graphene; helicenes; nanostructures; nonlinear optics. The article conveys some information:
A new family of distorted ribbon-shaped nanographenes was designed, synthesized, and their optical and electrochem. properties were evaluated, pointing out an unprecedented correlation between their structural characteristics and the two-photon absorption (TPA) responses and electrochem. band gaps. Three nanographene ribbons have been prepared: a seven-membered-ring-containing nanographene presenting a tropone moiety at the edge, its full-carbon analog, and a purely hexagonal one. We have found that the TPA cross-sections and the electrochem. band gaps of the seven-membered-ring-containing compounds are higher and lower, resp., than those of the fully hexagonal polycyclic aromatic hydrocarbon (PAH). Interestingly, the inclusion of addnl. curvature has a pos. effect in terms of non-linear optical properties of those ribbons. In the experimental materials used by the author, we found 1-Bromo-4-iodobenzene(cas: 589-87-7Category: iodides-buliding-blocks)
1-Bromo-4-iodobenzene(cas: 589-87-7) is mainly used as the OLED pharmaceutical intermediate, as reagent for in situ desilylation and coupling of silylated alkynes, as substrate in copper-free Sonogashira coupling in aqueous acetone..Category: iodides-buliding-blocks It is also used in synthesis of β,β,dibromostyrenes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids)
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com