Copper-promoted intramolecular selenium transfer from a PSe group to a P–CH2–P methylene carbon producing an unusual methaneselone ligand
Abstract
The bis(diphenylphosphino)methane selenides CH2(Ph2P)Ph2PSe and CH2(Ph2PSe)2, react with copper(II) chloride giving an unidentified copper(I) complex; exposure to the air affords the new bifunctional, tridentate iigand bis(diphenylphosphoryl)methaneselone SeC(Ph2PO)2 linking copper(I) and copper(II) in the trinuclear complex [CuII{CuICl2[µ-SeC(Ph2PO)2]}2].