Ru3(CO)9(PPh3)3: a convenient starting material for the synthesis of binuclear ruthenium(I) complexes. Crystal structure of Ru2(μ-L2)(CO)4(PPh3)2 (H2L2 = 1,8-diaminonaphthalene)

Article abstract of DOI:10.1016/0022-328X(89)87107-4

The thermal reaction of Ru3(CO)9(PPh3)3 with precursors (HL) of binucleating anionic ligands affords the ruthenium(I) dimers Ru2(μ-L)2(CO)4(PPh3)2 in high yield .The crystal structure of complex 5 shows that each nitrogen of the 1,8-diiminonaphthalene ligand bridges the two ruthenium atoms, leading to a very distorted octahedral arrangement of the ligands and a very short Ru-Ru distance, 2.5788(3) angstroem.