SYNTHESIS AND CRYSTAL-STRUCTURE OF HEPTACARBONYL-HYDRIDO-(TERT-BUTYLETHYNYL)-2,4-HEXADIENE)-TRIANGULO-TRIRUTHENIUM, HRU3(CO)7(C6H9)(C6H10)

被引:14
作者
AIME, S [1 ]
MILONE, L [1 ]
SAPPA, E [1 ]
TIRIPICCHIO, A [1 ]
TIRIPICCHIOCAMELLINI, M [1 ]
机构
[1] UNIV PARMA,CNR,CTR STUDIO STRUTTURIST DIFFRATTOMETR,IST CHIM GEN & INORGAN,I-43100 PARMA,ITALY
关键词
D O I
10.1016/S0020-1693(00)91655-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reactions of HRu3(CO)9C2C(CH3)3 with 2cis, 4trans-hexadiene and 1,5-hexadiene afford as main product the same complex HRu3(CO)7(C6H9)(C6H10)suggesting that isomerization of the non conjugated species occurs in the reactiotion. The crystal structure of this compound has been determined by X-ray methods. Crystals are triclinic, space group P1, with Z = 2, in a unit cell of dimensions a = 10.230(8), b = 10.487(9), c = 19.084(13) Å α = 49.3(1), ß = 126.4(1), and γ = 127.9(1)°. The structure has been solved from diffractometer data by Patterson and Fourier methods and refined by full-matrix least-squares to R = 0.054 for 4303 observed reflections. The molecule is formed by a three-metal atom cluster with seven terminal CO groups; one hydridic hydrogen atom is bridge-bonding two ruthenium atoms on one side of the cluster. A t-butylethynyl group it bound to the three metals via a σ bond to one Ru and two η bonds to the other two Ru atoms; opposite to this group with respect to the cluster a 2trans, 4trans-hexadienic unit bridges two Ru atoms via two η bonds. © 1979.
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页码:163 / 169
页数:7
相关论文
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