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Under what conditions is a hydrocarbon transformed into a carbon skeleton in a molecular metal carbide? Treatment with an electron-rich metal complex under reducing conditions is one possibility. The complex anion shown schematically on the right, in which a “naked” C2 unit lies within a square-planar array of two titanium and two lithium cations, formed from the reaction of ethylene with (meso-octaethylporphyrinogen)titanium in the presence of lithium metal.
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DeAngelis et al. (1995) studied this question.
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