ORGANOAMIDO-LATHANIDES AND ARYLOXO-LANTHANIDES .8. THE X-RAY STRUCTURE OF 5-COORDINATE [LA(OC6H3PH2-2,6)3(THF)2].THF

被引:44
作者
DEACON, GB [1 ]
GATEHOUSE, BM [1 ]
SHEN, Q [1 ]
WARD, GN [1 ]
机构
[1] UNIV ADELAIDE,DEPT PHYS & INORGAN CHEM,JORDAN LABS,ADELAIDE,SA 5001,AUSTRALIA
关键词
D O I
10.1016/S0277-5387(00)84318-1
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The X-ray crystal structure of [La(Odpp)3(THF)2].THF (Odpp = OC6H3Ph2-2,6), prepared by reaction of lanthanum metal, bis(pentafluorophenyl)mercury and 2,6-diphenylphenol in THF, shows distorted trigonal-bipyramidal stereochemistry for lanthanum. A phenolate oxygen [La-O 2.25(1) angstrom] and a THF oxygen [La-O 2.68(2) angstrom] occupy apical positions [O-La-O 165.9(4)-degrees], whilst two phenolate oxygens [La-O 2.25(1), 2.234(9) angstrom] and a THF oxygen [La-O 2.52(1) angstrom] occupy trigonal positions [O-La-O 122.1(4), 124.8(5), 96.5(6)-degrees]. The apical La-O(THF) distance is exceptionally and unexpectedly long. Unit cell data for [Nd(OdPP)3(THF)2].THF suggest that it is isostructural with the lanthanum compound.
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页码:1289 / 1294
页数:6
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