Rf is a monovalent or divalent fluoropolyether group, and each Z group is independently -P(O)(OY)2 or -O-P(O)(OY)2.

Disclosed is a method for producing o-, m-, or p-xylylenediamine by hydrogenating o-, m-, or p-phthalodinitrile in the presence of a heterogeneous catalyst.

The P-C-P bond being more stable than the P-O-P bond means that these products can be used at high temperatures above 130°C, e.g. in evaporators.

But a prophet, p-r-o-p-h-e-t, is borned a prophet, always from bef--was ordained that before the world ever even begin.

But a prophet, singular, p-r-o-p-h-e-t is borned a prophet, comes up a prophet.

The resulting compound may have the general formula M-N-O-P-Q, wherein M is the diagnostic or therapeutic moiety, N-O-P is the linker of the present invention, and Q is the targeting peptide.

In another embodiment the compounds may have the formula M-N-O-P-M, wherein M is independently a diagnostic or therapeutic moiety and N-O-P is the linker of the invention.

The nonfluorinated-tetrahalo-p-xylene molecules may include, α,α,α',α'-tetrachloro-p-xylene, α,α,α',α'-tetrabromo-p-xylene or α,α,α',α'-tetraiodo-p-xylene.