Coinage metal-alkynyl clusters have developed rapidly over the past decades. An attractive area of this field is the integration of polyoxometalates (POMs) to direct the formation of metal-alkynyl clusters. POMs...
An alkene-bridged thioether ligand (L) was designed and
used for
its first study within a polyoxometalate (POM) hybrid system, and
a POM-based copper(I)-alkene compound [(CuIL)2(PVMoVI
12O40)]·(CuIL) (1) was isolated and characterized by X-ray
crystallography. A unique alkene-coordinating N(η2-CC)N mode of L is observed, and the Cu centers are captured
by σ2,π-L in a pocket fashion, giving birth
to discrete [CuIL]+ cations and [(CuIL)2(PVMoVI
12)]− anions. The ionic crystal exhibits solubility in aprotic polar solvents,
and the electrospray ionization mass spectrometry is used to explore
the nature of species present in the solution. It is found that the
whole cluster [PVMoVI
12]3– is completely present, and all the main peaks can be assigned to
different charged fragments of the same parent cluster.
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