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1,1,4,4-Tetra-tert-butyl-1,4-dichloro-2,2,3,3-tetra-phenyl-tetra-silane.

Otsuka K, Ishida S, Kyushin S - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: The Si-Si-Si angle [116.09 (2)°] is larger than the tetra-hedral bond angle (109.5°).These long bond lengths and the wide angle are favorable for reducing the steric hindrance among the tert-butyl and the phenyl groups.The dihedral angle between the phenyl rings in the asymmetric unit is 37.36 (8)°.

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ABSTRACT
The title compound, C(40)H(56)Cl(2)Si(4), was synthesized by the coupling of 1,1-di-tert-butyl-1,2-dichloro-2,2-diphenyl-disilane with lithium. The asymmetric unit contains one half-mol-ecule, which is completed by an inversion centre. In the mol-ecule, the tetra-silane skeleton adopts a perfect anti conformation and the Si-Si bonds [2.4355 (5) and 2.4328 (7) Å] are longer than the standard Si-Si bond length (2.34 Å). The Si-Si-Si angle [116.09 (2)°] is larger than the tetra-hedral bond angle (109.5°). These long bond lengths and the wide angle are favorable for reducing the steric hindrance among the tert-butyl and the phenyl groups. The dihedral angle between the phenyl rings in the asymmetric unit is 37.36 (8)°.

No MeSH data available.


The molecular structure of the title compound, showing 50% probability displacement ellipsoids. [Symmetry code: (i) –x + 1, –y, –z + 1.]
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Fap4: The molecular structure of the title compound, showing 50% probability displacement ellipsoids. [Symmetry code: (i) –x + 1, –y, –z + 1.]


1,1,4,4-Tetra-tert-butyl-1,4-dichloro-2,2,3,3-tetra-phenyl-tetra-silane.

Otsuka K, Ishida S, Kyushin S - Acta Crystallogr Sect E Struct Rep Online (2012)

The molecular structure of the title compound, showing 50% probability displacement ellipsoids. [Symmetry code: (i) –x + 1, –y, –z + 1.]
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3275182&req=5

Fap4: The molecular structure of the title compound, showing 50% probability displacement ellipsoids. [Symmetry code: (i) –x + 1, –y, –z + 1.]
Bottom Line: The Si-Si-Si angle [116.09 (2)°] is larger than the tetra-hedral bond angle (109.5°).These long bond lengths and the wide angle are favorable for reducing the steric hindrance among the tert-butyl and the phenyl groups.The dihedral angle between the phenyl rings in the asymmetric unit is 37.36 (8)°.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
The title compound, C(40)H(56)Cl(2)Si(4), was synthesized by the coupling of 1,1-di-tert-butyl-1,2-dichloro-2,2-diphenyl-disilane with lithium. The asymmetric unit contains one half-mol-ecule, which is completed by an inversion centre. In the mol-ecule, the tetra-silane skeleton adopts a perfect anti conformation and the Si-Si bonds [2.4355 (5) and 2.4328 (7) Å] are longer than the standard Si-Si bond length (2.34 Å). The Si-Si-Si angle [116.09 (2)°] is larger than the tetra-hedral bond angle (109.5°). These long bond lengths and the wide angle are favorable for reducing the steric hindrance among the tert-butyl and the phenyl groups. The dihedral angle between the phenyl rings in the asymmetric unit is 37.36 (8)°.

No MeSH data available.