Neue Polysulfidorhenium‐Halbsandwichkomplexe

Herberhold, Max; Jin, Guo‐Xin; Milius, Wolfgang

doi:10.1002/ange.19931050137

Cited by 9 publications

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References 36 publications

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“…36 Almost all such known chalcogen-bridged compounds are sulfides. The Se-containing compounds [Re 2 O 2 Cp* 2 (µ 2 -Q)-(µ 2 -Q 2 )] (Q ) S, Se) 37 and [(Ti(MeCp) 2 ) 2 (µ-Se 2 ) 2 ] 38 are known. Insofar as we know the only Te-containing compound of this type is [(TiCp* 2 ) 2 (µ-Te 2 ) 2 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Structural Characterization of Some Selenoruthenates and Telluroruthenates

et al. 2005

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The reaction of solid [RuClCp(PPh(3))(2)] with TeSe(3)(2-) or Se(n)(2-) in DMF leads to the formation of [RuCp(PPh(3))(mu(2)-Se(2))](2) (1). In the structure of this compound the two bridging Se(2) groups lead to a six-membered Ru(2)Se(4) ring in a chair conformation. Attached to each Ru center is a PPh(3) ligand in an equatorial position and a Cp ring in an axial position. The compound is diamagnetic. The compound [Ru(2)Cp(2)(mu(3)-Se(2))(mu(3)-Se)](2) (2) is obtained under similar conditions in the presence of air. This structure comprises a centrosymmetric Ru(4)Se(6) dimer formed from the two bridging Se groups and the two bridging Se(2) groups. Each Ru center is pi-bonded to a Cp ring. The reaction of solid [RuClCp(PPh(3))(2)] with a Te(n)(2-) polytelluride solution in DMF leads to the diamagnetic compound [(RuCp(PPh(3)))(2)(mu(2)-(1,4-eta:3,6-eta)Te(6))] (3). Here the Ru centers are bound to a bridging Te(6) chain at the 1, 4, 3, and 6 positions, leading to a bicyclic Ru(2)Te(6) ring. Each Ru atom is bound to a Cp ring and a PPh(3) group. This dimer possesses a center of symmetry. The structure of 3 is the first example of a bicyclic complex where fusion occurs along a Te-Te bond. If the same reaction is carried out in DMF/CH(2)Cl(2), rather than DMF, then [(RuCp(PPh(3)))(2)(mu(2)-(1,4-eta:3,6-eta)Te(6))].CH(2)Cl(2) (4) is obtained. In the solid state it possesses the same Ru(2)Te(6) structural unit as does 3, but the unit lacks a crystallographically imposed center of symmetry. The electronic structures of 3 and 4 have been analyzed with the use of first principles density functional theory. Bond order analysis indicates that the Te-Te bond where fusion occurs has a shared bonding charge of about (2)/(3) of that found for Te-Te single bonds.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Structural Characterization of Some Selenoruthenates and Telluroruthenates

et al. 2005

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Neue Rheniumkomplexe mit Trichalkogenido‐ und Tetrachalkogenido‐Chelatliganden

Herberhold

Jin

Milius

1994

Zeitschrift anorg allge chemie

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1995 organo-phosphorus compounds, isocyclic C derivatives organo-phosphorus compounds, isocyclic C derivatives S 0084 -193Tri(1-cyclohepta-2,4,6-trienyl)phosphane, P(C7H7)3, and Tetra(1-cyclohepta-2,4,6-trienyl)phosphonium Tetrafluoroborate, (P(C7H7)4)BF4.-X-ray crystallographic analysis of the new title compounds (III) and ( V) (space group: P21/n; Z = 8 (III) or Z = 4 (V)) reveals that the cycloheptatrienyl substituents are present in boat conformation.

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Umsetzungen von Halbsandwich‐Rhenium(V)‐Oligochalkogenidkomplexen mit Acetylen‐dicarbonsäuredimethylester. Molekülstrukturen der neuen 1,2‐Dicarbomethoxy‐ethen‐1,2‐dichalkogenat‐Chelatverbindungen CpRe[S₂C₂(COOMe)₂]₂ und CpRe(N^tBu)[Se₂C₂(COOMe)₂]

Herberhold

Jin

Milius

1994

Zeitschrift anorg allge chemie

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Inhaltsübersicht.(1) Bei der Umsetzung von Cp*Re(S3)(S4) (1a) mit Acetylen‐dicarbonsäuredimethylester (dmad) entsteht über die blaue Zwischenstufe Cp*Re(S4)[S2C2(COOMe)2] (2a) hinweg der rote Bis(ethen‐1,2‐dithiolato)‐Komplex Cp*Re[S2C2(COOMe)2]2 (3a). Auch die Tetrasulfidorhenium‐Komplexe Cp*Re(L)(S4) (L = O (4a), NtBu (5a)) ergeben mit dmad das Produkt 3a, während die analogen Tetraselenidorhenium‐Verbindungen Cp*Re(L)(Se4) (4b und 5b) nur zu Cp*Re(L)[Se2C2(COOMe)2] (L = O (6b), NtBu (7b)) umgesetzt werden. Nach den Röntgenstrukturanalysen sind die Ethen‐1,2‐dithiolato‐rhenium‐Chelatringe in 3a entlang des S …︁ S Vektors zum Cp*‐Liganden hin abgeknickt (Winkel zwischen den Ebenen ReS2/S2C2 159,2°), während der ReSe2C2 Chelatring in 7b eben ist.

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Neue Polysulfidorhenium‐Halbsandwichkomplexe

Cited by 9 publications

References 36 publications

Synthesis and Structural Characterization of Some Selenoruthenates and Telluroruthenates

Synthesis and Structural Characterization of Some Selenoruthenates and Telluroruthenates

Neue Rheniumkomplexe mit Trichalkogenido‐ und Tetrachalkogenido‐Chelatliganden

Umsetzungen von Halbsandwich‐Rhenium(V)‐Oligochalkogenidkomplexen mit Acetylen‐dicarbonsäuredimethylester. Molekülstrukturen der neuen 1,2‐Dicarbomethoxy‐ethen‐1,2‐dichalkogenat‐Chelatverbindungen CpRe[S₂C₂(COOMe)₂]₂ und CpRe(N^tBu)[Se₂C₂(COOMe)₂]

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Neue Polysulfidorhenium‐Halbsandwichkomplexe

Cited by 9 publications

References 36 publications

Synthesis and Structural Characterization of Some Selenoruthenates and Telluroruthenates

Synthesis and Structural Characterization of Some Selenoruthenates and Telluroruthenates

Neue Rheniumkomplexe mit Trichalkogenido‐ und Tetrachalkogenido‐Chelatliganden

Umsetzungen von Halbsandwich‐Rhenium(V)‐Oligochalkogenidkomplexen mit Acetylen‐dicarbonsäuredimethylester. Molekülstrukturen der neuen 1,2‐Dicarbomethoxy‐ethen‐1,2‐dichalkogenat‐Chelatverbindungen Cp*Re[S2C2(COOMe)2]2 und Cp*Re(NtBu)[Se2C2(COOMe)2]

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Umsetzungen von Halbsandwich‐Rhenium(V)‐Oligochalkogenidkomplexen mit Acetylen‐dicarbonsäuredimethylester. Molekülstrukturen der neuen 1,2‐Dicarbomethoxy‐ethen‐1,2‐dichalkogenat‐Chelatverbindungen CpRe[S₂C₂(COOMe)₂]₂ und CpRe(N^tBu)[Se₂C₂(COOMe)₂]