REACTION OF CYCLOPENTADIENE WITH (ALKYLIDYNE)TRIRUTHENIUM CLUSTERS - SYNTHESES OF RU3(MU-3-CPH)(MU-CO)2(CO)6(ETA-5-C5H5) AND (MU-H)2RU3(MU-3-CPH)(MU-CO)(CO)6(ETA-5-C5H5) - CRYSTAL-STRUCTURES OF RU3(MU-3-CPH)(MU-CO)2(CO)6(ETA-5-C5H5) AND RU3(MU-3-CPH)(MU-CO)3(ETA-5-C5H5)3

被引：6

作者：

NEVINGER, LR ^{[1
]}

KEISTER, JB ^{[1
]}

LAKE, CH ^{[1
]}

CHURCHILL, MR ^{[1
]}

机构：

[1] SUNY BUFFALO,DEPT CHEM,BUFFALO,NY 14214

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 05期

关键词：

D O I：

10.1021/om00041a015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of (mu-H)3Ru3(mu-3-CPh)(CO)9-n(NCMe)n (n = 1, 2) with cyclopentadiene produces the new cluster Ru3(mu-3-CPh)(mu-CO)2(CO)6(eta-5-C5H5), in addition to RU3(mu-3-CPh)(mu-CO)3(eta-5-C5H5)3. Hydrogenation of Ru3(mu-CPh)(mu-CO)2(CO)6(eta-5-C5H5) gives (mu-H)2Ru3(mu-3-CPh)(mu-CO)(CO)6(eta-5-C5H5). The compound Ru3(mu-3-CPh)(mu-CO)2(CO)6(eta-5-C5H5) crystallizes in the centrosymmetric monoclinic space group P2(1)/n, with a = 9.039 (2) angstrom, b = 20.496 (5) angstrom, c = 11.896 (3) angstrom, beta = 92.80 (2)-degrees, V = 2201 (1) angstrom3, and Z = 4. Diffraction data (Mo K-alpha, 2-theta = 5-50-degrees) were collected with a Siemens R3m/V diffractometer, and the structure was solved and refined to R = 5.09% for all 3901 data (R = 2.69% for those 2659 data with F > 6.0-sigma(F)). The structure contains a triangular arrangement of ruthenium atoms (Ru-Ru = 2.738 (l)-2.749 (1) angstrom) capped by a mu-3-CPh ligand (Ru-C = 2.055 (5)-2.086 (5) angstrom). Atoms Ru(1) and Ru(2) are each bound to three terminal CO ligands, while Ru(3) is linked to an eta-5-C5H5 ligand. The structure is completed by two bridging CO ligands bonded more strongly to Ru(3) and somewhat less strongly to the remaining Ru atoms (Ru(3)-C(31) = 1.993 (6) angstrom, Ru(1)-C(31) = 2.167 (6) angstrom; Ru(3)-C(32) = 1.972 (6) angstrom, Ru(2)-C(32) = 2.225 (6) angstrom). The compound Ru3(mu-3-CPh)(mu-CO)3(eta-5-C5H5)3 crystallizes in the centrosymmetric monoclinic space group P2(1)/c, with a = 10.465 (2) angstrom, b = 11.192 (2) angstrom, c = 18.444 (3) angstrom, beta = 92.00 (2)-degrees, V = 2158.8 (7) angstrom3, and Z = 4. Diffraction data (Mo K-alpha, 2-theta = 5-45-degrees) were collected with a Siemens R3m/V diffractometer, and the structure was solved and refined to R(F) = 3.24% for all 2716 unique data (R(F) = 2.02% for those 2110 data with \F(o)\ > 6-sigma(\F(o)\)). The three ruthenium atoms in the structure form an almost perfect equilateral triangle (Ru-Ru = 2.690 (1)-2.705 (1) angstrom), which is capped by a mu-3-CPh ligand (Ru-C = 2.019 (4)-2.023 (4) angstrom). Each edge of the triangle has a symmetrically bridging carbonyl attached. The structure is then completed by one eta-5-C5H5 ring bonded to each ruthenium.

引用

页码：1819 / 1824

页数：6

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