Facile, metal promoted, oxidation of η4-1,3-diphosphacyclobutadiene by water or methanol: synthesis of [MoCl(CO)(η4-1,3-P2C2But2)(η5-L)] (L = C5H5, C5Me5) and [MoCl(CO){η335-PC2But2PH(OR)}(η5-L)] (L= C5H5,R = H, Me)

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Andrew S. Weller, Christopher D. Andrews, Andrew D. Burrows, Michael Green, Jason M. Lynam, Mary F. Mahon and Cameron Jones


The new complexes [MoCl(CO)(η4-1,3-P2C2But2)(η5-L)] (L = C5H5 1, C5Me5 2) are reported; facile oxidation of 1 with water or methanol affords a rare example of a mixed valence phosphaphosphonietinyl in [MoCl(CO){η335-PC2But2- PH(OR)}(η5-C5H5)] (R = H, Me), which has also been structurally characterised for R=H.


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