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• W2096563141 abstract "Die gelösten Edukte Zinn(II)-chlorid und Dimangandecacarbonyl reagierten in Dimethylformamid (DMF) bei 150°C bzw. im Derivat Monomethylformamid (MMF) bei 120°C zu gelben Produktsolvaten des Typs [Mn(CO)4SnCl(D)]3 (D = DMF und MMF) ab. Die Molekülstruktur des DMF-Solvates wurde durch eine Einkristall-Röntgenstrukturanalyse bestimmt. Sein zentrales Molekülfragment besteht aus einem nicht ebenen (SnMn)3-Ring, dessen Mittelwerte für den SnMn-Bindungsabstand 258,8(5) pm, den endocyclischen Bindungswinkel am Mn-Atom 90,5(2)° und den am Sn-Atom 141,6(2)° betragen. Nach 119Sn Mößbauer-spektroskopischen Meßergebnissen liegt ein Zinn(II)-Oxidationszustand in der Titelverbindung vor. Zur weiteren Charakterisierung wurden die ν(CO)-Infrarot-Absorptionsbanden und 1H-NMR-spektroskopische Daten der zwei Solvate gemessen. Zum mechanistischen Entstehungsweg wurde durch entsprechende Experimente gesichert, daß möglicherweise zwischenzeitlich entstandenes Cl3SnMn(CO)5 mit Zinn(II)-chlorid in DMF-Lösung die Titelverbindung bildet. First Compound with a Six-Membered Tin(II) Transition Metal Ring – [Mn(CO)4SnCl(DMF)]3 Tin(II) chloride and dimanganese decacarbonyl were reacted in dimethyl-(DMF) at 150°C or monomethylformamide (MMF) at 120°C to yellow product solvates of the type [Mn(CO)4SnCl(D)]3 (D = DMF and MMF). Their identification in the case of the compound [Mn(CO)4SnCl(DMF)]3 was undertaken by a single crystal X-ray analysis. As result of this determination, its central molecular fragment contained a non-planar (SnMn)3 ring with the following average bond parameters: SnMn bond lengths of 258.8(5) pm, endocyclic bond angle at Mn Atom of 90.5(2)° and the corresponding angle at Sn atom of 141.6(2)°. After the result of 119Sn Mößbauer spectroscopic measurements of the title substance a tin(II) oxidation state was present. The ν(CO) i.r. absorption bands and 1H n.m.r. data of both obtained products were measured for a further characterization. With view to the mechanistic pathway of the product formation, it was ascertained by separate experiments that the postulated intermediate Cl3SnMn(CO)5 and tin(II) chloride in DMF solution produced the title compound." @default.
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• W2096563141 date "1989-01-01" @default.
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• W2096563141 title "Der erste sechsgliedrige Zinn(II)-�bergangsmetallzyklus - [Mn(CO)4SnCl(DMF)]3" @default.
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• W2096563141 doi "https://doi.org/10.1002/zaac.19895710105" @default.
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