The metallophosphines 1,1’-bis(diphenylphosphino)octamethylferrocene (dppomf) (5) and (1,1-octamethylferrocenediyl)phenylphosphane (4) have been synthesized by reacting FeCl2 with lithium (diphenylphosphino)tetramethylcyclopentadienide and bis(tetramethylcyclopentadienyl)phenylphosphine dilithium salt, respectively. When 5 was reacted with ClAu(tht) (tht = tetrahydrothiophene) in a 1:2 ratio, 6 was obtained in which one AuCl unit is coordinated to each phosphine group. The proportion 1:1 led to the three-coordinate gold(I) monomer complex 7, of which the X-ray structure has been established. It crystallizes in space group P2(1)/c, monoclinic, with a = 23.153(4) Angstrom, b = 9.070(4) Angstrom, c = 20.414(3) Angstrom, beta = 114.2(1)degrees, and Z = 4. The gold atom is trigonal planar, the Au-P and Au-CI bond lengths are greater than those in linear P-Au-CI complexes. The cyclopentadienyl rings are planar, parallel, and staggered by 17 degrees, and the methyl substituents deviate slightly both sides from the plane.