Structural analysis of heteropolymetallic complexes: A chiral pinwheel {Cr [Ni(N2S2)]3}3+ and the {trans-(MeCN)Cr(NO)[Ni(N2S2)]2}2+ basket

The [Cr(NO)(MeCN)5]2+ synthon reacts with the Ni(N2S2) metallodithiolate ligand to yield co-crystallized products from which crystals suitable for SC-XRD could be extracted. The major product, {trans-(MeCN)Cr (NO)[Ni(N2S2)]2}2+, abbreviated [Cr(NO)Ni2],2+ is a symmetrical butterfly with upswept Ni(N2S2) wings flanking the trans-Cr(NO)(MeCN) backbone and designated {Cr(NO)}5 in Enemark-Feltham notation (Feltham and Enemark, 1981). The minor product, {Cr[Ni(N2S2)]3}3+, abbreviated [CrNi3]3+ , is a pinwheel-type structure analogous to [RhNi3]3+, and both are comparable to tris-bipyridyl analogues.

Automated summary

This article describes the reaction between [Cr(NO)(MeCN)5]2+ and Ni(N2S2) metallodithiolate ligand, and the co-crystallized products that could be obtained from the reaction. The two products, [Cr(NO)Ni2]2+ and [CrNi3]3+, have symmetrical butterfly and pinwheel-type structures, respectively.