Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1311849 | Inorganica Chimica Acta | 2005 | 6 Pages |
Syntheses and spectroscopic features (IR, NMR and ESI MS) are reported for five 1:2 adducts of CuX with dppe (X = I, ClO4, NCS, O3SCF3 (tfs) BH4; dppe = Ph2P(CH2)2PPh2). ESI MS and 31P NMR spectroscopy indicate that these species dissociate in solution yielding free diphosphine and 3:2 species. A single crystal X-ray structure determination has been carried out on Cu(dppe)2NCS defining a four-coordinate complex of the form [(P,P′-dpex)M(P-dpex)X] for M = Cu, the thiocyanate being N-bound; the ionic [Cu(P,P′-dppe)2]tfs has also been structurally characterized.
Graphical abstractFive 1:2 adducts of CuX with dppe have been prepared and characterized. Cu(dppe)2NCS is the first structural definition of a four-coordinate complex of the form [(P,P′-dpex)M(P-dpex)X] for M = Cu, the thiocyanate being N-bound.Figure optionsDownload full-size imageDownload as PowerPoint slide