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Dinuclear copper(II) complexes exhibiting reversible photochromism
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We present here the design and preparation of several discrete coordination complexes exhibiting two Cu(II) ions separated by a dithienylcyclopentene as a photoswitchable spacer, proposed as models of molecular √SWAP quantum gates. These models use the two Cu(II) ions as realizations of qubits and the spacer as a light switch intended to trigger the gate by reversibly undergoing a ring closing isomerization. For this, a dicarboxylate species with a central diarylethene, H2L1, has been used, together with bipyridine or phenantroline as capping ligands. Also, a new dinucleating ligand containing the photoactive moiety between two tridentate coordinating pockets, H4L2, has been designed and prepared for the same purpose. The four complexes have been characterized by single-crystal X-ray diffraction. Three of them exhibit reversible photoswitching in solution.
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SALINAS UBER, Jorge, et al. Dinuclear copper(II) complexes exhibiting reversible photochromism. European Journal of Inorganic Chemistry. 2020. Vol. 6, núm. 561-567. ISSN 1434-1948. [consulta: 11 de maig de 2026]. Disponible a: https://hdl.handle.net/2445/154134