@article{b58644867ad440e6ac142483243ecb9a,
title = "Synthesis and structural features of thiophene-fused analogues of warped nanographene and quintuple helicene",
abstract = "Thiophene-fused analogues of warped nanographene (WNG) and quintuple helicene (QH) were synthesized via a three-step π-extension of corannulene. Similar to the synthetic route to WNG, five hexagons and five heptagons were generated by a Scholl reaction of pentakis(thienylphenyl)corannulene to form pentathiaWNG. In contrast, decathiaWNG could not be obtained from pentakis(thienylthienyl)corannulene, and instead decathiaQH was generated from the photocyclization of the precursor. X-ray crystallography of the products revealed their conformations and packing modes in the solid state. The configurational features of decathiaQH were further examined by DFT calculations. The absorption and fluorescence spectra of the sulfur-containing WNG and QH were shifted relative to those of the corresponding sulfur-free analogues.",
author = "Lin, {Hsing An} and Kenta Kato and Yasutomo Segawa and Scott, {Lawrence T.} and Kenichiro Itami",
note = "Funding Information: This work was supported by the ERATO program from JST (JPMJER1302 to K. I.), the Funding Program for KAKENHI from MEXT (JP16K05771 to Y. S.), a grant-in-aid for Scientic Research on Innovative Areas “p-Figuration” from JSPS (JP17H05149 to Y. S.), the Noguchi Institute (to Y. S.), and the US National Science Foundation (CHE-1149096 to L. T. S.). K. K. thanks IGER Program in Green Natural Sciences, Nagoya University and the JSPS fellowship for young scientists. Calculations were performed using the resources of the Research Center for Computational Science, Okazaki, Japan. ITbM is supported by the World Premier International Research Center Initiative (WPI), Japan. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",
year = "2019",
doi = "10.1039/C8SC04470H",
language = "English",
volume = "10",
pages = "2326--2330",
journal = "Chemical Science",
issn = "2041-6520",
publisher = "Royal Society of Chemistry",
number = "8",
}