Heteronukleare Metallatomcluster der Typen X4−n[SnM(CO)4P(C6H5)3]n und M2(CO)8 [μ‐Sn(X)M (CO)4P(C6H5)3]2 aus Umsetzungen von SnX2 mit M2(CO)8[P(C6H5)3]2 (X = Halogen; M = Mn, Re; n = 2, 3)

Haupt, H.‐J.; Balsaa, Peter; Schwab, B.; Flörke, Ülrich; Preut, H.

doi:10.1002/zaac.19845130604

Cited by 13 publications

(2 citation statements)

References 13 publications

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“…Very few examples of rhenium−tin complexes have been reported to date . The new dirhenium-ditin complex Re 2 (CO) 8 (μ-SnPh 2 ) 2 ( 10 ) was obtained in a 52% yield from the reaction of Re 2 (CO) 8 [μ-η 2 -C(H)C(H)Bu n ](μ-H) with an excess of Ph 3 SnH at 68 °C.…”

Section: Resultsmentioning

confidence: 99%

Addition of Palladium and Platinum Tri-tert-Butylphosphine Groups to Re−Sn and Re−Ge Bonds

et al. 2005

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The reaction of Re2(CO)8[mu-eta2-C(H)=C(H)Bu(n)](mu-H) with Ph3SnH at 68 degrees C yielded the new compound Re2(CO)8(mu-SnPh2)2 (10) which contains two SnPh2 ligands bridging two Re(CO)(4) groups, joined by an unusually long Re-Re bond. Fenske-Hall molecular orbital calculations indicate that the bonding in the Re2Sn2 cluster is dominated by strong Re-Sn interactions and that the Re-Re interactions are weak. The 119Sn Mössbauer spectrum of 10 exhibits a doublet with an isomer shift (IS) of 1.674(12) mm s(-1) and a quadrupole splitting (QS) of 2.080(12) mm s(-1) at 90 K,characteristic of Sn(IV) in a SnA2B2 environment. The IS is temperature dependent, -1.99(14) x 10(-4) mm s(-1) K(-1); the QS is temperature independent. The temperature-dependent properties are consistent with the known Gol'danskii-Kariagin effect. The germanium compound Re2(CO)8(mu-GePh2)2 (11) was obtained from the reaction of Re2(CO)8[mu-eta2-C(H)=C(H)Bu(n)](mu-H) with Ph3GeH. Compound 11 has a structure similar to that of 10. The reaction of 10 with Pd(PBu(t)3)2 at 25 degrees C yielded the bis-Pd(PBu(t)3) adduct, Re2(CO)8(mu-SnPh2)2[Pd(PBu(t)3)]2 (12); it has two Pd(PBu(t)3) groups bridging two of the four Re-Sn bonds in 10. Fenske-Hall molecular orbital calculations show that the Pd(PBu(t)3) groups form three-center two-electron bonds with the neighboring rhenium and tin atoms. The mono- and bis-Pt(PBu(t)3) adducts, Re2(CO)8(mu-SnPh2(2)[Pt(PBu(t)3)] (13) and Re2(CO)8(mu-SnPh2)2[Pt(PBu(t)3)]2 (14), were formed when 10 was treated with Pt(PBu(t)3)2. A mono adduct of 11, Re2(CO)8(mu-GePh2)2[Pt(PBu(t)3)] (15), was obtained similarly from the reaction of 11 with Pt(PBu(t)3)2.

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Section: Resultsmentioning

confidence: 99%

Addition of Palladium and Platinum Tri-tert-Butylphosphine Groups to Re−Sn and Re−Ge Bonds

et al. 2005

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“…Tin is widely used as a modifier for transition metal catalysts to improve their reactivities and product selectivities. , We have recently shown that Ph 3 SnH is a good reagent for the introduction of large numbers of phenyl-substituted tin ligands into carbidopentaruthenium carbonyl complexes . Surprisingly, there are very few examples of polynuclear rhenium carbonyl cluster complexes containing tin ligands . We have now found that Ph 3 SnH also reacts with the reactive rhenium complex Re 2 (CO) 8 (μ-H)[μ-C(H)C(H)Bu] to yield the new dirhenium−ditin complex Re 2 (CO) 8 (μ-SnPh 2 ) 2 , 1 , in 52% yield when allowed to react in hexane solvent at reflux for 2 h .…”

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confidence: 92%

New Rhenium−Tin Cluster Adds Palladium Phosphine Groups across Re−Sn Bonds

et al. 2004

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The new rhenium-tin complex Re2(CO)8(mu-SnPh2)2, 1 was obtained in 52% yield from the reaction of Re2(CO)8(mu-H)[mu-C(H)C(H)Bu] with Ph3SnH. Compound 1 contains two SnPh2 groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) A [3.1902(4) A], Re-Sn = 2.7429(4) A [2.7445(4) A], and 2.7675(4) [2.7682(5) A]. A bis-Pd(PBut3) adduct of 1, Pd2Re2(CO)8(mu-SnPh2)2(PBut3)2, 2 was obtained from the reaction of 1 with Pd(PBut3)2. Compound 2 contains Pd(PBut3) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) A and 2.8167(14) A, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes.

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ChemInform Abstract: HETERONUCLEAR METAL ATOM CLUSTERS OF THE TYPES X4‐NSN(M(CO)4P(C6H5)3)N AND M2(CO)8(μ‐SN(X)M(CO)4P(C6H5)3)2 BY REACTION OF SNX2 WITH M2(CO)8(P(C6H5)3)2 (X = HALOGEN; M = MN, RE; N = 2,3)

Haupt¹,

Balsaa²,

Schwab³

et al. 1984

Chemischer Informationsdienst

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Heteronukleare Metallatomcluster der Typen X_4−n[SnM(CO)₄P(C₆H₅)₃]_n und M₂(CO)₈ [μ‐Sn(X)M (CO)₄P(C₆H₅)₃]₂ aus Umsetzungen von SnX₂ mit M₂(CO)₈[P(C₆H₅)₃]₂ (X = Halogen; M = Mn, Re; n = 2, 3)

Cited by 13 publications

References 13 publications

Addition of Palladium and Platinum Tri-tert-Butylphosphine Groups to Re−Sn and Re−Ge Bonds

Addition of Palladium and Platinum Tri-tert-Butylphosphine Groups to Re−Sn and Re−Ge Bonds

New Rhenium−Tin Cluster Adds Palladium Phosphine Groups across Re−Sn Bonds

ChemInform Abstract: HETERONUCLEAR METAL ATOM CLUSTERS OF THE TYPES X4‐NSN(M(CO)4P(C6H5)3)N AND M2(CO)8(μ‐SN(X)M(CO)4P(C6H5)3)2 BY REACTION OF SNX2 WITH M2(CO)8(P(C6H5)3)2 (X = HALOGEN; M = MN, RE; N = 2,3)

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