ABSTRACT The tertiary diphosphines Ph2PCH2PPh2, bis(diphenylphosphino)methane (dppm) and (Ph2P)2C=CH2, 1,1-bis(diphenylphosphino)ethane (vdpp), may be functionalized when bonded to the metal atom in coordination and organometallic complexes. In the former case, the acidity of the CH2 group is enhanced, and in the latter the C=C double bond is activated towards nucleophilic addition.
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