Structural data derived from X-ray powder diffraction and EXAFS spectroscopy are presented for iodosyl benzene (PhlO) and the imido analogue, PhlNS02-4-Me-C6H4, which indicate that these compounds are polymeric in the solid state.

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The reaction of [Cu(NCMe),][PF,] with 2 equivalents of [Mn(CN)L,] {L, = (CO)(dppm),, cis-or trans-(CO),[P(OR),](dppm) (R = Ph or Et, dppm = Ph,PCH,PPh,)} in CH,Cl, gave [Cu{p-NC)MnL,},][PF,]. With 2 equivalents of [Mn(CN)L,] in toluene, AgPF, gave [Ag{(p-NC)MnL,},]+ {L, = cis-or trans-(CO),[P(OR),](dppm) (R = Ph or Et)} but in CH,Cl, cis-[Mn(CN)(CO),(PEt,)(dppe)] (dppe = Ph,PCH,CH,PPh,) or trans-[Mn(CN)(CO)(dppm),] and AgX (X = BF,-, PF,-or SbF,-) gave the tricationic manganese@) complexes [Ag{(p-NC)Mn(CO)(dppm),),lCPF,I, and [Ag{(p-NC)MnL,},]X, { L, = trans-(CO),(PEt,)(dppe)]; the complexes [Ag{(p-NC)MnL,),][PF,],