SYNTHESIS AND CHARACTERIZATION OF THE STABLE CATIONIC D(2) METAL ACETYLENE COMPLEXES [NB(ETA(5)-C(5)H(4)SIME(3))(2)(ETA(2)(C,C)-RC-CR')(NCME)](+) - X-RAY CRYSTAL-STRUCTURES OF [NB(ETA(5)-C(5)H(4)SIME(3))(2)(ETA(2)(C,C)-MEO(2)CC-CME)(NCME)][BPH(4)] AND [(ETA(5)-C(5)H(4)SIME(3))(2)(CO)NB=C=C(CH3)(CH3)-C=C=NB(CO)(ETA(5)-C(5)H(4)SIME(3))(2)][BPH(4)](2)

被引：29

作者：

ANTINOLO, A

OTERO, A

FAJARDO, M

GARCIAYEBRA, C

GILSANZ, R

LOPEZMARDOMINGO, C

MARTIN, A

GOMEZSAL, P

机构：

[1] UNIV CASTILLA LA MANCHA, FAC QUIM, DEPT QUIM INORGAN ORGAN & BIOQUIM, E-13071 CIUDAD REAL, SPAIN

[2] UNIV ALCALA DE HENARES, DEPT QUIM INORGAN, E-28871 ALCALA DE HENARES, SPAIN

[3] UNIV ALCALA DE HENARES, DEPT QUIM ORGAN, E-28871 ALCALA DE HENARES, SPAIN

[4] UNIV ALCALA DE HENARES, UNIDAD RAYOS X, E-28871 ALCALA DE HENARES, SPAIN

来源：

ORGANOMETALLICS | 1994年 / 13卷 / 12期

关键词：

D O I：

10.1021/om00024a011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of [Nb(eta(5)-C(5)H(4)SiMe(3))(2)(eta(2)(C,C)-RC=CR') (2) with 1 equiv of [Cp(2)Fe][BPh(4)] in acetonitrile leads to the cationic acetylene complexes [Nb(eta(5)-C(5)H(4)SiMe(3))(2)(eta(2)(C,C)-RC=CR')(CH3CN)][BPh(4)]. The same reaction for 2d (R = Me, R' = CO(2)Me) under different experimental conditions affords a divinylidene binuclear d(2) niobocene complex, [(eta(5)-C(5)H(4)SiMe(3))(2)(CO)Nb=C=C-(CH3(CH3)C=C=Nb(CO)(eta(5)-C(5)H(4)SiMe(3))(2)][BPh(4)](2). The molecular geometries of both this complex and [Nb(eta(5)-C(5)H(4)SiMe(3))(2)(eta(2)(C,C)-MeC=CCO(2)Me)(CH3CN)][BPh(4)] have been determined by X-ray diffraction studies.

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页码：4679 / 4682

页数：4

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