Zirconium alkyls with ancillary cyclooctatetraenyl ligands. X-ray crystal structures of [Li(tmed)][(C8H8)Zr(p-C6H4Me)Cl2] and (C8H8)Zr[CH(SiMe3)2]2

被引：1

作者：

Nelsen, Melissa J. ^{[1
]}

Girolami, Gregory S. ^{[1
]}

机构：

[1] Univ Illinois, Sch Chem Sci, 600 South Mathews Ave, Urbana, IL 61801 USA

来源：

POLYHEDRON | 2020年 / 187卷

基金：

美国国家科学基金会;

关键词：

Zirconium; Hafnium; Alkyls; Aryls; Cyclooctatetraene; MOLECULAR-STRUCTURE; IMIDO COMPLEXES; METAL; DERIVATIVES; TITANIUM; BOND; CYCLOPENTADIENYL; STEREOCHEMISTRY; CONFORMATION; HAFNIUM;

D O I：

10.1016/j.poly.2020.114581

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Several new group 4 alkyl and aryl compounds have been synthesized that possess ancillary cyclooctatetraene ligands. Most of the complexes isolated are anionic and have stoichiometries of [Li(tmed)(2)][(C8H8)-MRCl2], [Li(tmed)(x)][(C8H8)-MR2Cl], or [Li(tmed)(x)][(C8H8)MR3], where M = Zr or Hf, and R = Me, Ph, p-Tol, or CH(SiMe3)(2). Two neutral 14-electron compounds have also been prepared, (C8H8)M[CH(SiMe3)(2)](2 ), where R = Zr or Hf. The compound (C8H8)Zr[CH(SiMe3)(2)](2) appears to react reversibly with 7 atm of carbon monoxide but does not react with dihydrogen even at 70 atm. IR, H-1 and C-13 NMR data are reported, along with the crystal structures of two of the new compounds. (C) 2020 Published by Elsevier Ltd.

引用

页数：8

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