Die Umsetzung von N~[ H R U~( C O ) ,~]mit Triorganylsilanen, -germanen und -stamanen R'R,XH (X = Si, Ge, Sn; R, R' = organyl) fuhrt zu dreikernigen Clusteranionen des Typs [HRu,(CO) Trinuclear Ruthenium Cluster Anions Containing Triorganylsilyl, -germyl, and -stannyl LigandsThe reaction of Na [HRu,(CO),,] with triorganylsilanes, -germanes, and stannanes R'R,XH (X = Si, Ge, Sn; R, R' = organyl) affords trinuclear cluster anions of the type [HRu3(CO),,(XR,R'),] -, which can be isolated as the bis(triphenylphosphorany1iden)ammonium or the tetraethylammonium salts. The structure of an isosceles Ru, triangle with one hydride bridge and two XR,R' ligands at the bridgehead ruthenium atoms is proposed for the anions on the basis of NMR evidence. The reaction proceeds under elimination of H, and CO and is reversible; the formation of [HRu,(CO)

Carbonylmetal Complexes with Ferrocendithiocarboxylato Ligands Reaction of the carbonylmetal cations

The structures of three atypical silver(!) carboxylates have been determined using X-ray diffraction. The silver(!) complex with (2-chlorophenoxy)acetic acid,

The piperidinium salt of ferrocenedithiocarboxylic acid (I) is alkylated by the alkyl iodides (II) to yield the alkyl esters (III).

Die Umsetzung der Carbonylmetall‐Kationen (II), (V) und (VIII) mit dem Ferrocendithiocarboxylat (I) als Piperidiniumsalz führt zu den Komplexen (III), (VI) und (IX), die durch thermische Decarboxylierung in die Chelatkomplexe (IV), (VII) und (X) übergehen.