The synthesis and characterization of two heterobimetallic complexes [K([18]crown-6){(η 4-C 14H 10)Fe(μ-η 4:η 2-P 4)Ga(nacnac)}] ( 1) (C 14H 10 = anthracene) and [K(dme) 2{(η 4-C 14H 10)Co(μ-η 4:η 2-P 4)Ga(nacnac)}] ( 2) with strongly reduced P 4 units is reported. Compounds 1 and 2 are prepared by reaction of the gallium(III) complex [(nacnac)Ga(η 2-P 4)] (nacnac = CH[CMeN(2,6- iPr 2C 6H 3)] 2) with bis(anthracene)ferrate(1-) and -cobaltate(1-) salts. The molecular structures of 1 and 2 were determined by X-ray crystallography and feature a P 4 chain which binds to the transition metal atom via all four P atoms and to the gallium atom via the terminal P atoms. Multinuclear NMR studies on 2 suggest that the molecular structure is preserved in solution.