RT Journal Article
T1 Tuning the Twist by Molecular Design: A New Strategy for Hexabenzocoronene‐Containing Helical Twistacene
A1 Mora Fuentes, Juan Pedro
A1 Villar Castro, Daniel
A1 Barbosa de Bessa, J. Francisco
A1 Aranda Ruiz, Daniel
A1 Hampel, Frank
A1 Pérez Meirás, María Dolores
A1 Pérez Ojeda, M. Eugenia
A1 Peña Gil, Diego
A1 Hirsch, Andreas
K1 Bottom-up approach
K1 Nanographenes
K1 Scholl reaction
K1 Soluble
K1 Twistacenes
AB In this work, we present an efficient synthetic methodology that allows precise and selective control on the C–C bonds during the Scholl reaction. The first ever described hexabenzocoronene (HBC)-containing helical twistacene NG2 has been obtained with very high yield and practically no need for purification, starting from a helical-twisted hexacene NG1. X-ray analysis reveals an end-to-end twist angle, from approximately 145° in NG1 to 132° in NG2. This approach has provided access to nanographenes (NGs) with improved properties compared to their planar analogues, in particular, enhanced solubility and high stability. In addition, they exhibit interesting redox properties, which, together with their high molar absorbance and optimal energy levels, highlight their potential as new organic semiconductor materials for emerging photovoltaic and electronic technologies.
PB Wiley
SN 1521-3765
SN 0947-6539
YR 2026
FD 2026-02-15
LK https://hdl.handle.net/10347/46773
UL https://hdl.handle.net/10347/46773
LA eng
NO Mora-Fuentes, J. P., Villar-Castro, D., Barbosa-de-Bessa, J. F., Aranda, D., Hampel, F., Pérez, D., Pérez-Ojeda, M.E., Peña, D., & Hirsch, A. (2026) Tuning the Twist by Molecular Design: A New Strategy for Hexabenzocoronene-Containing Helical Twistacene. Chemistry – A European Journal: e03509, 1-9. https://doi.org/10.1002/chem.202503509
NO We acknowledge funding from Spanish Agencia Estatal de Investigación (grant number PID2022-140845OB-C62), from the Xunta de Galicia (Centro de Investigacion do Sistema Universitario de Galicia, 2023–2027, grant number ED431G 2023/03), European Research Council Synergy grant MolDAM (grant number 951519), the European Regional Development Fund. The authors acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG) (Project number 182849149) and Emerging Talents Initiative (ETI) (Project number 2024-2_Nat_05_Mora_Fuentes). The authors thank E. Guitián, H. Maid and C. Placht for fruitful discussions. Deposition Number(s) 2496029 (for 1), 2496028 (for NG1), 2497800 (for NG2) contain(s) the supplementary crystallographic data for this paper. These data are provided free of charge by the joint Cambridge Crystallographic Data Centre and Fachinformationszentrum Karlsruhe Access Structures service.
DS Minerva
RD 18 abr 2026