Organometallic compounds of the lanthanides .103. Mixed sandwich complexes of the 4f elements: Synthesis and crystal structure of (eta(8)-cyclooctatetraenyl)(eta(5)-2,5-di-tert-butylpyrrolyl)samarium, -thulium, and -lutetium

被引：23

作者：

Schumann, H

Rosenthal, ECE

Winterfeld, J

Weimann, R

Demtschuk, J

机构：

[1] Inst. fur Anorganische/Analyt. Chem., Technischen Universität Berlin, 10623 Berlin

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1996年 / 507卷 / 1-2期

关键词：

samarium; thulium; lutetium; mixed sandwich complexes;

D O I：

10.1016/0022-328X(95)06000-M

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

[(eta(8)-C8H8)Ln(mu-Cl)(THF)](2) (Ln = Sm, Tm, Lu) reacts with Na[pyr*] (pyr* = NC(4)H(2)(t)Bu(2)-2,5) to form [(eta(8)-C8H8)Ln(eta(5)-pyr*)(THF)(x)] (Ln = Sm 1, x = 1; Ln = Tm 2, Lu 3, x = 0). The novel sandwich compounds have been characterized by C, H, N analysis, mass spectrometry and NMR spectroscopy. Additionally, an X-ray structural analysis of 1 was performed. The crystals of 1 are monoclinic, space group P2(1)/c with a = 11.131(2) Angstrom, b = 20.023(3) Angstrom, c = 20.118(5) Angstrom, beta = 91.16(2)degrees, V = 4482.8(14) Angstrom(3) and Z = 4. The final refinement resulted in R1 = 3.09% (I > 2 sigma(I)).

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页码：287 / 289

页数：3

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