Molecular and Supramolecular Materials: From Light-Harvesting to Quantum Information Science and Technology

Abstract

Figure 2. Molecular quantum materials and technologies. (a) Synthetic electron spin systems, M1: (2,2,6,6-tetramethylpiperidin-N-oxyl-4-yl) 3,5dimethylbenzoate-4-yl tetrephthalate diradicals; 32 M2: magnesium phthalocyanine with three nitroxyl radicals; 32 M3: Hexamethoxyphenalenyl radical; 32 M4: side-functionalized graphene nanoribbon radicals; 123 M5: topological stabilized magnetic centers. 123 (b) Schematic representation of the grafting procedure leading to immobilized BTR radicals inside the pores of SBA-15 host phase. 34 Adapted with permission from ref 34. Copyright 2021 Wiley-VCH. (c) Molecular structure of two GdIII trapped in a C79N fullerene. 95 Adapted with permission from ref 95. Copyright 2017 American Chemical Society. (d) TM radicals doped with their corresponding diamagnetic hydrogenated products to increase Tm. 132 (e) Schematic presentation of the impact of polymer rigidity on the luminescence and electron spin dynamics of the radical polymers. 35

Spin-State Manipulation in a Luminescent Diradical Polymer

“…However, this doping method cannot avoid partial aggregation or dimer formation. Therefore, the objective of this study is to achieve spin-optical modulation of luminescent diradicals in the condensed state while avoiding the formation of any dimers. − To this end, we demonstrate the first example of a solid-state luminescent diradical polymer ( PD1 ) (Figure b), in which the polystyrene backbone is decorated with diradical monomer D . For comparison, monoradical M (Figure c) and its polymer PM1 (Figure d) were also synthesized.…”