Abstract

The [Ca(DMF)6][Mo6Cl14] complex (I) was synthesized by reacting octahedral cluster Mo complex (H3O)2Mo6Cl14·6H2O with the Ca2+ cation in DMF. Analogous reaction carried out in the presence of triphenylphosphine oxide Ph3PO in acetonitrile resulted in [{Ca(OPPh3)4}{Mo6Cl14}] (II). According to X-ray diffraction data, complex I has ionic structure, while the structure of complex II consists of infinite linear chains of the cluster anionic complexes {Mo6Cl14}2− bonded to the cationic Ca complexes {Ca(OPPH3)4}2+. Both complexes exhibit intensive luminescence in red and near-IR regions of the spectrum.

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