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The syntheses and reactions of sulfur coordinated ruthenium centers with CO, PR 3 , (R = Me, Ø), N 2 H 4  and N 2  are investigated. Reaction of [Ru(CO) 3 (THF)Cl 2 ] with lithium-o-methylthiobenzenethiolate yields cis-[Ru(CO) 2 (CH 3 S-C 6 H 4 -S) 2 ], with Li 2 -o-benzenedithiolate the cis-[Ru(CO) 2 (C 6 H 4 S 2 ) 2 ] 2- -ion is obtained, which can be isolated either as the NMe 4  salt or reacted further with 1,2-C 2 H 4 Br 2  to give cis-[Ru(CO) 2 dttd], (dttd 2- = 2,3,8,9-Dibenzo-1,4,7,10-tetrathiadecane 2- ). In all three complexes the CO ligands are relatively inert to substitution; refluxing of [Ru(CO) 2 (C 6 H 4 S 2 ) 2 ] 2-  in EtOH in the presence of excess PMe 3 , however, and subsequent alkylation with 1,2-C 2 H 4 Br 2  yields [Ru(CO)PMe 3 (dttd)]. [Ru(PMe 3 ) 2 dttd] is obtained from [Ru(PMe 3 ) 4 Cl 2 ] and Li 2 -dttd, the synthesis of which is also described. In [Ru(PMe 3 ) 2 (dttd)] the PMe 3  ligands are inert, but in [Ru(PØ 3 ) 2 (dttd)] one PØ 3  ligand is easily substituted by CO or N 2 H 4  yielding [Ru(CO)(PØ 3 )dttd] or [Ru(N 2 H 4 )(PØ 3 )dttd] respectively; [Ru(PØ 3 ) 2 (dttd)] is obtained from [RU(PØ 3 ) 3 Cl 2 ] and H 2 -dttd. The complexes are characterized by elemental analyses, IR,  1 H NMR and mass spectroscopy.

Synthesen und Reaktionen von schwefelkoordinierten Ruthenium-Komplexen [1]/Syntheses and Reactions of Sulfur Coordinated Ruthenium Complexes [1]