Übergangsmetall‐Carben‐Komplexe, CXXXV. Neue Carben‐Komplexe des Mangans mit Heteroatomen der VI. Hauptgruppe in α‐Stellung zum Carben‐Kohlenstoffatom

Abstract

Der thermisch relativ stabile Carbin-Komplex Dicarbonyl(ferrocenylcarbin)(methylcyclopentadieny1)mangan-tetrachloroborat (2) reagiert mit Lithium-benzolthiolat, -selenolat und -tellurolat zu den neuen Carben-Komplexen 3 -5. Eigenschaften und spektroskopische Untersuchungen der Verbindungen werden beschrieben. Transition Metal Carbene Complexes, CXXXV Novel Carbene complexes of Manganese with Heteroatoms of the VI. Main Group in a-Position to the Carbene Carbon AtomThe thermally relative stable carbyne c6mplex dicarbonyl(ferrocenyIcarbyne)(methylcyclopentadieny1)manganese tetrachloroborate (2) reacts with lithium benzenethiolate, selenolate, and -tellurolate to yield the novel carbene complexes 3-5, respectively. Properties and spectroscopic investigations of the compounds are reported.Bei der Umsetzung von [C,H,(CO),MnCC6H,][BC14] rnit Na,S wurde ein instabiler, lichtempfindlicher zweikerniger Carben-Komplex mit einem Substituenten der VI.

Di- and Polymetallic Heteroatom Stabilized (Fischer) Metal Carbene Complexes

“…92 This approach can be also applied to dimetallic monocarbynes such as 257 that reacts with LiSePh or LiTePh to yield the corresponding carbenes 258a,b (Scheme 51). 93 The reaction of Mn carbyne complex 259 or Re vinylidene complex 260 with benzalazine, 261, formed the novel bicyclic bis-carbene complexes 262a,b (Scheme 52). 94 The formation of compounds 262 is an organometallic version of the classic organic process named "criss-cross reaction".…”

Synthesis and structure of bimetallic complexes with σ,π-bridged monocarbene ligands

“…[(OC) 5 M{η 1 :η 6 -C 6 H 5 C(OEt)}-Cr(CO) 3 ] (M = W, Mo or Cr), 5 [(OC) 5 M{η 1 :η 5 -C 5 H 3 RC(OEt)}-MЈ(η 5 -C 5 H 4 R)] (M = W, Mo or Cr; MЈ = Fe or Ru; R = H or Me), 6 a series of ferrocenyl carbene complexes of chromium, tungsten and manganese, which were synthesized to study electronic effects of the ferrocenyl substituent on the carbene ligand, 7 and the modification of the cationic ferrocenyl carbyne complexes of manganese with thiolate, selenolate, tellurolate and [Co(CO) 4 ] Ϫ to afford the corresponding neutral carbene complexes. 8 The addition of anionic carbene complexes [M{C(OMe)CH 2 }(CO) 5 ] Ϫ to cationic complexes with co- † E-Mail: slotz@scientia.up.ac.za ‡ π-Heteroarene complexes. Part 4.…”

Carbon-Carbon and Carbon-Heteroatom Coupling Reactions of Metallacarbynes

“…Yields in the Formation of Ketenyl Complexes from Metallacarbynes Cp(CO)2W=C-R and Lewis Acids EXR'n (Eq45) …”