%0 Journal Article %1 noauthororeditor %A Toksabay, Sinem %A Leisegang, Markus %A Christ, Andreas %A Härtl, Patrick %A Krebs, Johannes %A Marder, Todd B %A Haldar, Soumyajyoti %A Heinze, Stefan %A Bode, Matthias %A Krueger, Anke %D 2022 %J Chem. Eur. J. %K a %N 10 %P e202203187 %R 10.1002/chem.202203187 %T Controlled formation of porous 2D lattices from C$_3$-symmetric Ph$_6$Me-Tribenzotriquinacene-OAc$_3$ %U https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/chem.202203187 %V 29 %X Abstract The on-surface self-assembly of molecules to form holey nanographenes is a promising approach to control the properties of the resulting 2D lattice. Usually, planar molecules are utilized to prepare flat, structurally confined molecular layers, with only a few recent examples of warped precursors. However, control of the superstructures is limited thus far. Herein, we report the temperature-controlled self-assembly of a bowl-shaped, acetylated C3-symmetric hexaphenyltribenzotriquinacene derivative on Cu(111). Combining scanning tunneling microscopy (STM) and density functional theory (DFT) confirms the formation of highly differing arrangements starting with π-stacked bowl-to-bowl dimers at low coverage at room temperature via chiral honeycomb structures, an intermediate trigonal superstructure, followed by a fully carbon-based, flattened hexagonal superstructure formed by on-surface deacetylation, which is proposed as a precursor for holey graphene networks with unique defect structures.

@article{noauthororeditor, abstract = {Abstract The on-surface self-assembly of molecules to form holey nanographenes is a promising approach to control the properties of the resulting 2D lattice. Usually, planar molecules are utilized to prepare flat, structurally confined molecular layers, with only a few recent examples of warped precursors. However, control of the superstructures is limited thus far. Herein, we report the temperature-controlled self-assembly of a bowl-shaped, acetylated C3-symmetric hexaphenyltribenzotriquinacene derivative on Cu(111). Combining scanning tunneling microscopy (STM) and density functional theory (DFT) confirms the formation of highly differing arrangements starting with π-stacked bowl-to-bowl dimers at low coverage at room temperature via chiral honeycomb structures, an intermediate trigonal superstructure, followed by a fully carbon-based, flattened hexagonal superstructure formed by on-surface deacetylation, which is proposed as a precursor for holey graphene networks with unique defect structures.}, added-at = {2023-03-31T14:15:57.000+0200}, author = {Toksabay, Sinem and Leisegang, Markus and Christ, Andreas and Härtl, Patrick and Krebs, Johannes and Marder, Todd B and Haldar, Soumyajyoti and Heinze, Stefan and Bode, Matthias and Krueger, Anke}, biburl = {https://www.bibsonomy.org/bibtex/2ae8c0d663e40058d054705563baea487/ctqmat}, day = 08, description = {Controlled formation of porous 2d lattices from C3-symmetric Ph6Me-Tribenzotriquinacene-OAc3}, doi = {10.1002/chem.202203187}, interhash = {781f2c53276e8aa3391b276bb02f624f}, intrahash = {ae8c0d663e40058d054705563baea487}, journal = {Chem. Eur. J.}, keywords = {a}, month = {11}, number = 10, pages = {e202203187}, timestamp = {2023-10-18T13:27:55.000+0200}, title = {Controlled formation of porous 2D lattices from C$_{\mathbf{3}}$-symmetric Ph$_{\mathbf{6}}$Me-Tribenzotriquinacene-OAc$_{\mathbf{3}}$}, url = {https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/chem.202203187}, volume = 29, year = 2022 }