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Neue Synthesewege zu Zweikernkomplexen des Typs MMЈ(CO) 8 ER 2 X (M/MЈ ؍ Mn/Mn, Mn/Re, Re/Re; E ؍ P, As; R ؍ CF 3 , Me; X ؍ Hal) Inhaltsübersicht. Mn(CO) 5 I reagiert mit Verbindungen des Typs (CF 3 ) 2 EAsMe 2 (E ϭ P, As) wie mit den symmetrischen E 2 (CF 3 ) 4 -Liganden im ersten Schritt unter Spaltung der E-As-Bindung und liefert die Produkte (CO) 5 MnE(CF 3 ) 2 und Me 2 AsI. Die Reaktion der einkernigen Komplexe mit überschüssigem (CO) 5 MnI führt in guter Ausbeute zu den bekannten Zweikernkomplexen (CO) 4 Mn[E(CF 3 ) 2 ,I]Mn(CO) 4 und CO. Das zweite Spaltungsprodukt Me 2 AsI substituiert im Edukt Mn(CO) 5 I CO unter Bildung von cis-Mn(CO) 4 I(AsMe 2 I). Dieser Befund war Anlass für eine systematische Untersuchung zur Synthese von cis-M(CO) 4 X-(EMe 2 Y)-Komplexen mit möglichst vielen Kombinationen von M ϭ Mn, Re; E ϭ P, As; X ϭ Cl, Br, I. Ein alternativer Zugang zu diesen Verbindungen wurde in der Spaltung der zweikernigen Halogenide des Mangan-und Rheniumcarbonyls erschlossen. Dieser Zugang erwies sich als besonders günstig für die Synthese der Perfluoromethyl Element Ligands. XLIII [1] Novel Synthetic Routes to Binuclear Complexes of the Type MMЈ(CO) 8 ER 2 X (M/MЈ ؍ Mn/Mn, Mn/Re, Re/Re; E ؍ P, As; R ؍ CF 3 , Me; X ؍ Hal,) Abstract. Mn(CO) 5 I reacts with compounds of the type (CF 3 ) 2 EAsMe 2 (E ϭ P, As) as with the symmetric E 2 (CF 3 ) 4 ligands in the first step with cleavage of the E-As bond to yield the products (CO) 5 MnE(CF 3 ) 2 and Me 2 AsI. Reaction of the mononuclear complexes with excess of Mn(CO) 5 I leads in good yields to the known dinuclear compounds (CO) 4 Mn[E(CF 3 ) 2 ,I]Mn(CO) 4 and CO. Me 2 AsI, the second product of the EAs cleavage, attacks the starting compound Mn(CO) 5 I giving cis-Mn(CO) 4 I(AsMe 2 I) and CO. This result encouraged us to thoroughly investigate the preparation of cis-M(CO) 4 X(EMe 2 Y) complexes with most of the possible combinations of M ϭ Mn, Re; E ϭ P, As and X,Y ϭ Cl, Br, I. An alternative route to these compounds was opened by the cleavage of the dinuclear manganese or rhenium halides M 2 (CO) 8 X 2 with the halophosphanes or -arsanes Me 2 EY. This route was found to be especially advantageous for the preparation of the rheniumcarbonyl precursors, since milder conditions than for the CO-substitution in Re(CO) 5 X compounds are sufficient for the halogen-bridged dinuclear complexes.
Neue Synthesewege zu Zweikernkomplexen des Typs MMЈ(CO) 8 ER 2 X (M/MЈ ؍ Mn/Mn, Mn/Re, Re/Re; E ؍ P, As; R ؍ CF 3 , Me; X ؍ Hal) Inhaltsübersicht. Mn(CO) 5 I reagiert mit Verbindungen des Typs (CF 3 ) 2 EAsMe 2 (E ϭ P, As) wie mit den symmetrischen E 2 (CF 3 ) 4 -Liganden im ersten Schritt unter Spaltung der E-As-Bindung und liefert die Produkte (CO) 5 MnE(CF 3 ) 2 und Me 2 AsI. Die Reaktion der einkernigen Komplexe mit überschüssigem (CO) 5 MnI führt in guter Ausbeute zu den bekannten Zweikernkomplexen (CO) 4 Mn[E(CF 3 ) 2 ,I]Mn(CO) 4 und CO. Das zweite Spaltungsprodukt Me 2 AsI substituiert im Edukt Mn(CO) 5 I CO unter Bildung von cis-Mn(CO) 4 I(AsMe 2 I). Dieser Befund war Anlass für eine systematische Untersuchung zur Synthese von cis-M(CO) 4 X-(EMe 2 Y)-Komplexen mit möglichst vielen Kombinationen von M ϭ Mn, Re; E ϭ P, As; X ϭ Cl, Br, I. Ein alternativer Zugang zu diesen Verbindungen wurde in der Spaltung der zweikernigen Halogenide des Mangan-und Rheniumcarbonyls erschlossen. Dieser Zugang erwies sich als besonders günstig für die Synthese der Perfluoromethyl Element Ligands. XLIII [1] Novel Synthetic Routes to Binuclear Complexes of the Type MMЈ(CO) 8 ER 2 X (M/MЈ ؍ Mn/Mn, Mn/Re, Re/Re; E ؍ P, As; R ؍ CF 3 , Me; X ؍ Hal,) Abstract. Mn(CO) 5 I reacts with compounds of the type (CF 3 ) 2 EAsMe 2 (E ϭ P, As) as with the symmetric E 2 (CF 3 ) 4 ligands in the first step with cleavage of the E-As bond to yield the products (CO) 5 MnE(CF 3 ) 2 and Me 2 AsI. Reaction of the mononuclear complexes with excess of Mn(CO) 5 I leads in good yields to the known dinuclear compounds (CO) 4 Mn[E(CF 3 ) 2 ,I]Mn(CO) 4 and CO. Me 2 AsI, the second product of the EAs cleavage, attacks the starting compound Mn(CO) 5 I giving cis-Mn(CO) 4 I(AsMe 2 I) and CO. This result encouraged us to thoroughly investigate the preparation of cis-M(CO) 4 X(EMe 2 Y) complexes with most of the possible combinations of M ϭ Mn, Re; E ϭ P, As and X,Y ϭ Cl, Br, I. An alternative route to these compounds was opened by the cleavage of the dinuclear manganese or rhenium halides M 2 (CO) 8 X 2 with the halophosphanes or -arsanes Me 2 EY. This route was found to be especially advantageous for the preparation of the rheniumcarbonyl precursors, since milder conditions than for the CO-substitution in Re(CO) 5 X compounds are sufficient for the halogen-bridged dinuclear complexes.
This review (782 references) represents an exhaustive up‐to‐date survey of literature on mass spectrometry and gas‐phase ion chemistry of organomanganese complexes. Fundamental physico‐chemical characteristics of organomanganese ionic species, as well as the gas‐phase reactions resulting in the dissociation or formation of manganese‐carbon bond(s) are examined. Circa 300 examples of ion/molecule reactions characterizing the reactivity of Mn + , positively or negatively charged manganese clusters, as well as neutrals, cations and anions of various Mn‐containing species (including coordinatively unsaturated ones) are summarized. A variety of studies involving tandem mass spectrometry, neutralization‐reionization mass spectrometry, collision‐induced dissociation, multiple‐photon dissociation, IRMPD spectroscopy and theoretical calculations for organomanganese ion structure characterization are discussed. Additionally, analytical applications of mass spectrometric techniques to the characterization of compounds containing a MnC bond are reviewed. These include a number of relatively simple mononuclear complexes, polynuclear clusters, complexes incorporating organometallic units bridged with organic fragment(s), bifunctional compounds containing organometallic and classical Werner‐type coordination sites, fullerenes or planar polyaromatic hydrocarbons with an organomanganese fragment attached to them, manganospiralenes, manganoscorpionates, supramolecular entities, cymantrene‐peptide bioconjugates, etc.
The present article reviews structures, properties, reactivity and applications of transition metal complexes supported by the parent thiophenolate ligand system and various derivatives thereof. This extensive outline of literature published in the last decade covers publications about di‐ and higher nuclear complexes that exhibit bridging thiophenolate functions. The structuring of this contribution is based on the type of ligand involved in the coordination, covering monodentate thiophenolate ligands as well as bi‐ and higher dentate derivatives being acyclic or macrocyclic. An emphasis is set on structures but reactions, reactivity and catalysis, redox chemistry, and other properties of the complexes in review are discussed where appropriate.
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