Layered Coordination Polymers Based on the Cluster Complexes [Re₆Q₈(CN)₆]^4– (Q = S or Se) and Dimeric Cations {(Ag(Dppe))₂(µ-Dppe)}²⁺

The reactions of salts of cluster anions [Re₆Q₈(CN)₆]^4– with the [Ag(CN)₂]^– dicyanoargentate anion in the presence of 1,2-bis(diphenylphosphino)ethane are studied. Two new coordination polymers, [{(Ag(Dppe))₂(µ-Dppe)}₂{Re₆S₈(CN)₆}]·H₂O (I) and [{(Ag(Dppe))₂(µ-Dppe)}₂{Re₆Se₈(CN)₆}]_0.85-[{(Ag(Dppe))(Ag(DppeSe))(µ-Dppe)}₂{Re₆Se₈(CN)₆}]_0.15 (II), are prepared by the solvothermal synthesis. The XRD study of single crystals of the compounds (CIF files CCDC nos. 2341356 (I) and 2341355 (II)) shows their layered structures. The XRD study of crystalline powders of the compounds shows that the synthesis of compound II leads to the formation of two crystalline phases, one of which is isostructural to compound I. The luminescence parameters of the solid-state compounds (quantum yields, emission lifetimes) resemble the parameters of other coordination polymers based on the [Re₆Q₈(CN)₆]^4– ions.