Structures of homoleptic benzyl derivatives of zirconium

Tedesco C.; Proto A.; Immirzi A.

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Structures of homoleptic benzyl derivatives of zirconium

机译：锆均苯甲基衍生物的结构

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Crystals of Zr(P-CH2C6H4CMe3)(4), tetra(4-tert-butylbenzyl)zirconium (1), have been studied by X-ray diffraction. The crystals belong to the tetragonal system, space group I (4) over bar, with a = 16.481 (2), c = 7.131(4) Angstrom, so that chemically equivalent ligands are also structurally equivalent, unlike other known homoleptic M(CH2C6H5)(4) compounds. Zr-CH2-C-ipso bond angles of 90.0(2)degrees suggest that ligands are eta(2)-bonded. The structure is discussed along with that of Zr(CH2C6H5)4, tetrabenzylzirconium (2) (redetermined), which is crystallographically unsymmetrical but also of approximate S-4 symmetry. The distortion of (2) from tetragonal symmetry (the four Zr-CH2-C-ipso bond angles being rather different) is discussed along with crystal packing. [References: 37]

机译：通过X射线衍射研究了Zr（P-CH2C6H4CMe3）（4）的晶体四（4-叔丁基苄基）锆（1）。晶体属于四方晶系，在bar上属于空间群I（4），a = 16.481（2），c = 7.131（4）埃，因此化学等效的配体在结构上也是等效的，这与其他已知的均相M（CH2C6H5）不同）（4）化合物。 Zr-CH2-C-ipso键角为90.0（2）度，表明配体是eta（2）键合的。讨论了该结构以及Zr（CH2C6H5）4四苄基锆（2）（已确定）的结构，该晶体在晶体学上不对称，但也具有近似S-4对称性。讨论了（2）的四方对称变形（四个Zr-CH2-C-ipso键角相当不同）以及晶体堆积。 [参考：37]

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《Acta Crystallographica, Section B. Structural Science》 |1998年第4期|共7页
作者
Tedesco C.; Proto A.; Immirzi A.;
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正文语种 eng
中图分类晶体学;
关键词
Tungsten triple bonds; Crystal-structure; Olefin polymerization; Molecular-structure; Complexes; Titanium; Hydroboration; Chemistry; Ligands; Metals;

机译：钨三键;晶体结构;烯烃聚合;分子结构;络合物;钛;加氢硼化;化学;配体;金属;

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3. Isolation and structural characterization of the first homoleptic lanthanide-zirconium oxoisopropoxide,La2Zr3O(OPr~i)_(16).Combination of an [M4O] tetrahedron with an [MO6] octahedron-A new structure type for pentanuclear alkoxide complexes [J] . N.Ya.Turova, V.G.Kessler, E.P.Turevskaya Inorganic Chemistry Communications . 2007,第3期

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Structures of homoleptic benzyl derivatives of zirconium

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