Strain-induced isomerization in one-dimensional metal-organic chains

0521261 - FZÚ 2020 RIV DE eng J - Journal Article
Telychko, M. - Su, J. - Gallardo Caparrós, Aurelio Jesús - Gu, Y.W. - Mendieta Moreno, Jesús Ignacio - Qi, D.C. - Tadich, A. - Song, S.T. - Lyu, P. - Qiu, Z.Z. - Fang, H.Y. - Koh, M.J. - Wu, J. - Jelínek, Pavel - Lu, J.
Strain-induced isomerization in one-dimensional metal-organic chains.
Angewandte Chemie - International Edition. Roč. 58, č. 51 (2019), s. 18591-18597. ISSN 1433-7851. E-ISSN 1521-3773
R&D Projects: GA MŠMT LM2015087
Grant - others:AV ČR(CZ) AP1601
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:68378271
Keywords : 1D chains * on surface chemistry * debromination * nc-AFM * DFT * molecular assembling
OECD category: Physical chemistry
Impact factor: 12.959, year: 2019
Method of publishing: Limited access
https://doi.org/10.1002/anie.201909074

We report an internal strain‐induced skeletal rearrangement of one‐dimensional (1D) metal–organic chains (MOCs) via a concurrent atom shift and bond cleavage on Cu(111) at room temperature. The process involves Cu‐catalyzed debromination of organic monomers to generate 1,5‐dimethylnaphthalene diradicals that coordinate to Cu adatoms, forming MOCs with both homochiral and heterochiral naphthalene backbone arrangements. Bond‐resolved non‐contact atomic force microscopy imaging combined with density functional theory calculations showed that the relief of substrate‐induced internal strain drives the skeletal rearrangement of MOCs via 1,3‐H shifts and shift of Cu adatoms that enable migration of the monomer backbone toward an energetically favorable registry with the Cu(111) substrate. Our findings on this strain‐induced structural rearrangement in 1D systems will enrich the toolbox for on‐surface synthesis of novel functional materials and quantum nanostructures.

Permanent Link: http://hdl.handle.net/11104/0305893