THE SYNTHESIS AND X-RAY STRUCTURES OF YTTERBOCENE(II) COMPLEXES CONTAINING PENDANT PYRIDYL GROUPS, [YB(CPX)2] (CPX=ETA(5)-C5H3(R)[CME2(CH2)NC5H4N-2]-1,3 - R=H OR SIME3 AND N=0 OR 1)

被引：43

作者：

VANDENHENDE, JR

HITCHCOCK, PB

LAPPERT, MF

NILE, TA

机构：

[1] UNIV SUSSEX,SCH CHEM & MOLEC SCI,BRIGHTON BN1 9QJ,E SUSSEX,ENGLAND

[2] UNIV N CAROLINA,DEPT CHEM,GREENSBORO,NC 27412

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1994年 / 472卷 / 1-2期

关键词：

YTTERBIUM; YTTERBOCENE; LANTHANIDES; FUNCTIONALIZED CYCLOPENTADIENYLS; CRYSTAL STRUCTURE;

D O I：

10.1016/0022-328X(94)80195-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Metallation Of C5H5[C(Me)2CH2C5H4N-2] (=Cp(py)H), C5H4(SiMe3)[{C(Me)2CH2C5H4N-2}-3] (=Cp'(py)H), C5H5[C(Me)2C5H4N-2] (=Cp(py(s))H), and C5H4[(SiMe3){C(Me)2C5H4N-2}-3] [=Cp'py(s)H] with KH in THF yielded the potassium complexes KCp(py) (1), KCp'py (2), KCp(py(s)) (3), or KCp'py(s) (4). Compounds 1-4 were readily converted into their homoleptic solvent-free ytterbium(II) complexes [Yb(Cppy)2] (5), [Yb(Cp'py)2] (6), [Yb(Cppy(s))2] (7) and [Yb(Cp'py(s))2] (8). The crystal structures of 5 and 8 show that both of the pyridyl groups in each complex are coordinated to the ytterbium. Some angles in 5 are Cp(1)-Yb-Cp(2) 137.7-degrees and N(1)-Yb-N(2) 100.8(2)-degrees, and the corresponding angles in 8 are Cp(l)-Yb-Cp(2) 136.9-degrees and N(1)-Yb-N(2) 84.0(4)-degrees (where Cp refers to the centroid of the cyclopentadienyl ring).

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页码：79 / 85

页数：7

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