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A. A. Koridze S. A. Kuklin N. A. Shtelzer P. V. Petrovskii F. M. Dolgushin M. G. Ezernitskaya 《Russian Chemical Bulletin》2008,57(10):2194-2197
The structure of the previously synthesized triosmium cluster was revised. The structure Os3(μ-H)2(CO)7(μ-C6H4){μ3-Ph2PCH2P(C6H4)Ph} suggested earlier was not confirmed. The cluster has the composition Os3(μ-H)2(CO)7(μ-C5H4N){μ3-Ph2PCH2P(C6H4)Ph} and contains the ortho-metalated pyridine ligand. The X-ray diffraction study of the complex Os3(μ-H)2(CO)7(μ-MeC5H3N){μ3-Ph2PCH2P(C6H4)Ph} containing the ortho-metalated 4-methylpyridine ligand made it possible to distinguish between the C and N atoms of the pyridine ligands in the resulting triosmium clusters. 相似文献
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A. A. Koridze A. M. Skeloumov F. M. Dolguskin A. I. Yanovsky Yu. T. Struckkov P. V. Petrovskii 《Russian Chemical Bulletin》1996,45(3):702-708
Os3(μ-CO)(CO)9(μ3-Me3SiC2Me) alkyne complexes react with ferrocenylacetylene in hot benzene to form Os3(CO)9{μ3-η1-η1-η2-η2-C(SiMe3)C(Me)C(H)C(Fe)} and a small amount of the isomeric Os3(CO)9(μ-η1-η1-η4-C(SiMe3)C(Me)C(Fc)C(H)} complex. The structure of the major isomer was confirmed by X-ray structural analysis of the single crystal. Thermolysis of this complex in refluxing benzene affords the Os3(μ-H)(CO)8{μ3-η1-η1-η4-η1-C(SiMe3)C(Me)C(H)(C5H3FeC5H5)} complex with theortho-metallated ferrocene moiety. The spectral characteristics of clusters with the μ3-η1-η1-η2-η2 and μ-η1-η1-η4 coordinations of the metallacyclopentadiene fragment have been established, which made it possible to choose between the alternative modes of bonding of diene with the trimetallic core. 相似文献
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V. I. Zdanovich V. Yu. Lagunova F. M. Dolgushin A. I. Yanovsky M. G. Ezernitskaya P. V. Petrovskii A. A. Koridze 《Russian Chemical Bulletin》1998,47(9):1789-1796
Ruthenium carbonyl triphenylphosphine complexes Ru2(CO)6−n
(PPh3)
n
{μ-C(CH=CHPh)C(Ph)C(CH=CHPh)C(Ph)} (n=1, 2) were obtained by the reaction of complex Ru2(CO)6{μ-C(CH=CHPh)C(Ph)C(CH=CHPh)C(Ph)} containing the ruthenacyclopentadiene moiety with PPh3 in refluxing toluene. The complexes were characterized by IR and by1H,13C, and31P NMR spectroscopy, and by X-ray analysis. The monophosphine derivative is identical to the complex formed by fragmentation
of the Ru3(CO)8(PPh3){μ-C(CH=CHPh)C(Ph)C(CH=CHPh)C(Ph)} cluster and contains the PPh3 ligand at the ruthenium atom of the ruthenacyclopentadiene moiety.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1836–1843, September, 1998 相似文献
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V. V. Krivykh O. A. Kizas E. V. Vorontsov A. A. Koridze 《Russian Chemical Bulletin》1996,45(12):2840-2842
Triosmium cluster Os3(-H)(CO)10(--2-CCC Me2OMe) (1) was obtained by treating OS3(-H)(-Cl)(CO)10 with LiCCCMe2OMe. The reaction of cluster1 with HBF4 · Et2O at –60 °C leads to the cationic complex [Os3(-H)(CO)10(-,,2-C=C=C Me2)]+BF4
– (2) with an allenylidene ligand. Thes1H and13C NMR spectra of complex2 reveal the temperature dependence caused by migration of hydrocarbon and carbonyl ligands. Thermodynamic parameters were obtained for be exchange process of the allenylidene ligand.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp, 2990–2992, December, 1996. 相似文献