@misc{10481/70777,
year = {2021},
month = {9},
url = {http://hdl.handle.net/10481/70777},
abstract = {A new family of chiral saddle-helix hybrid nanographenes is reported. The first hexa-peri-hexabenzocoronene (HBC) analogues bearing a nine-membered carbocycle are presented. Furthermore, for the first time, pi-extended carbo[n]helicenes containing a nine-membered ring as part of the helical moiety have been synthesized. The combination of a [5]helicene moiety and a nonagon ring in a single chiral motif induces a tremendous distortion from planarity into the nanographenic structures compared to other saddle-helix hybrids such as heptagon- and octagon-containing pi-extended carbo[5]helicenes. In fact, the interplanar angle of the two terminal rings reaches the largest angle (134.8 degrees) of a carbohelicene reported to date, thus being by far the most twisted helicene yet prepared. Photophysical properties evaluation showed improved absorption dissymmetry factors (|g(abs)|=4.2x10(-3)) in the new family of nonagon-containing pi-extended carbo[5]helicenes.},
organization = {European Research Council (ERC)	ERC-2015-STG-677023},
organization = {Ministerio de Ciencia, Innovacion y Universidades (MICIU/FEDER/AEI, Spain)	PGC2018-101181-B-I00},
organization = {Universidad de Granada (UGR) (Plan Propio - Intensificacion de la Investigacion)	PP2017-PRI.I-02},
organization = {Swiss National Science Foundation (SNSF)
European Commission	CRSK-2_190365},
organization = {Universidad de Granada/CBUA},
publisher = {Wiley Online Library},
keywords = {Chirality},
keywords = {Helicenes},
keywords = {Nanographenes},
keywords = {Nonagonal carbocycle},
keywords = {Polycyclic aromatic hydrocarbons},
title = {Chiral Distorted Hexa-peri-hexabenzocoronenes Bearing a Nonagon-Embedded Carbohelicene},
doi = {10.1002/anie.202109310},
doi = {10.1002/ange.202109310},
author = {Medel Miranda, Miguel Ángel and Moreno Cruz, Carlos and Miguel, Delia and Blanco Suárez, Víctor and Morcillo Martínez, Sara Patricia and González Campaña, Araceli},
}