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Dinuclear Copper(II) Complexes Exhibiting Reversible Photochromism
Author(s) -
SalinasUber Jorge,
Barrios Leoní A.,
Estrader Marta,
Roubeau Olivier,
Aromí Guillem
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201901141
Subject(s) - photochromism , chemistry , diarylethene , isomerization , moiety , molecular switch , terpyridine , ion , crystallography , copper , ligand (biochemistry) , photochemistry , bipyridine , stereochemistry , crystal structure , molecule , catalysis , organic chemistry , metal , biochemistry , receptor
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, H 2 L1, 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, H 4 L2, 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.