Spirocycle (Si t Bu 3 ) 6 Si 9 Cl 2 : The First of Its Kind among Group 14 Elements | Zendy

Klapötke Thomas M | Zendy; Vasisht Sham Kumar | Zendy; Mayer Peter | Zendy

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Spirocycle (Si t Bu 3 ) 6 Si 9 Cl 2 : The First of Its Kind among Group 14 Elements

Author(s) -

Klapötke Thomas M,

Vasisht Sham Kumar,

Mayer Peter

Publication year - 2010

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.201000498

Subject(s) - homonuclear molecule , chemistry , heteronuclear molecule , crystallography , valence (chemistry) , molecule , tetrahedron , silicon , group (periodic table) , ring (chemistry) , stereochemistry , nuclear magnetic resonance spectroscopy , organic chemistry

Structural studies on (R* 3 Si 4 ) 2 SiCl 2 , prepared by the reaction of tetrasilatetrahedranide KR* 3 Si 4 with SiCl 4 , show that the tetrahedral moieties R* 3 Si 4 undergo structural transformation. The molecule exhibits a spiro[4.4]nonasilane network that comprises two homonuclear tricyclo[2.1.0.0 2,5 ]pentasilane rings with a common “naked” silicon bridge. The compound shows structural similarities with R* 6 Si 8 , which consists of similar rings fused together along an Si–Si bridge. Comparison of valence angles, interplanar angles and bridgehead distances with respect to tricyclo[2.1.0.0 2,5 ]pentanes or similar ring systems with heteronuclear group homologues are reported to highlight the influence of bulky supersilyl R* groups in the structure.

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