On-surface synthesis of diradical 1D polymers
We report on the synthesis and characterization of atomically precise one‐dimensional diradical peripentacene polymers on a Au(111) surface. By means of high‐resolution scanning probe microscopy complemented by theoretical simulations, we provide evidence of their magnetic properties, which arise from the presence of two unpaired spins at their termini. Additionally, we probe a transition of their magnetic properties related to the length of the polymer. Peripentacene dimers exhibit an antiferromagnetic (S=0) singlet ground state.
A. Sanchez-Grande, J. I. Urgel, A. Cahlik, J. Santos, S. Edalatmanesh, E. Rodriguez-Sanchez, K. Lauwaet, P. Mutombo, D. Nachtigallova, R. Nieman, H. Lischka, B. de la Torre, R. Miranda, O. Grçning, N. Martin, P. Jelinek, and D. Ecija
Diradical Organic One‐Dimensional Polymers Synthesized on a Metallic Surface
Angewandte Chemie (2020)