Darstellung und eigenschaften von und reaktionen mit metallhaltigen heterocyclen XXXV. Metallzentrierte C-C-verknüpfung durch reduktive dimerisierung von thioaroyl-gruppen;synthese, abfangreaktionen und kristallstrukturen von dithiolen-komplexen

Synthetic and Structural Study of Cyclopentadienylchromium Dithiocarbamate Complexes and Their Thermolytic Derivatives

“…The structural features of 5 show that its formation from 3 has involved a single C−S bond cleavage cum C−C coupling, resulting in a metallacyclopropane moiety, i.e., Cr(5)C(1)C(2) in complex 5b . There exists a striking similarity between the bridging component in 5 and the dithiolene complexes B obtained by Lindner from the manganese-induced reductive dimerization of the thioaroyl chlorides RC(S)Cl, for which an unstable carbenoid intermediate was proposed (eq v) . However, in this study an NMR tube experiment showed that the carbenoid complex 4 was thermally stable in solution.…”

Structures and Reactivities of Diruthenium Dithiolene Complexes and Triruthenium Sulfido Clusters Derived from a Hydrosulfido-Bridged Diruthenium Complex

“…The molecular structure is shown in Figure , whereas selected bond distances and angles are listed in Table . The structure of 4a closely resembles that of [(Cp Et Ru) 2 (μ 2 -η 2 :η 4 -S 2 C 2 Ph 2 )] 16 and the isoelectronic dimanganese complex [{Mn(CO) 3 } 2 (μ 2 -η 2 :η 4 -S 2 C 2 Ph 2 )] . The dithiolene ligand bridges the two ruthenium atoms unsymmetrically: it binds to the Ru(1) atom through only two sulfur atoms whereas it binds to the Ru(2) atom through all four atoms in the dithiolene ligand.…”

Synthesis of Dimanganese Ruthenium Complexes from the Reaction of Ruthenium-Coordinated Thiophenes and Selenophene with [(1-Methylnaphthalene)Mn(CO)3]BF4and Cp2Co

“…The hexamethylbenzene ring and the diene portion of the η 4 :η 1 -H 4 C 4 S are mutually parallel with a dihedral angle of only 7.1° for 3 (T). The Mn(1)−C(4) bond distance (2.005(3) Å for 3 (T)) is quite close to the 2.009 Å bond distance of Mn−C(vinyl) in trans -1,2-{Mn(CO) 4 [ C , S -C(CO 2 Cy)(CO 2 Cy)S]} 2 C 2 (C 6 H 4 F- p ) 2 …”