In:
Acta Crystallographica Section C Structural Chemistry, International Union of Crystallography (IUCr), Vol. 70, No. 10 ( 2014-10-01), p. 971-974
Abstract:
Solvent-free single crystals of 1,3,5,7,9,11,13,15-octaphenylpentacyclo[9.5.1.1 3,9 .1 5,15 .1 7,13 ]octasiloxane (abbreviated as octaphenyl-POSS), C 48 H 40 O 12 Si 8 , were obtained by dehydration/condensation of the tetrol Si 4 O 4 (Ph) 4 (OH) 4 . The powder pattern generated from the single-crystal data matches well with the experimentally measured powder pattern of commercial octaphenyl-POSS. The geometry of the centrosymmetric molecule in the crystal was compared with that in the gas phase, and had shorter Si—O bond lengths and a broader range of Si—O—Si bond angles. The average Si—O bond length [1.621 (3) Å], and Si—O—Si and O—Si—O bond angles [149 (5) and 109 (1)°, respectively] were within the same range measured previously for octaphenyl-POSS solvates.
Type of Medium:
Online Resource
ISSN:
2053-2296
DOI:
10.1107/S2053229614019834
DOI:
10.1107/S2053229614019834/fn3178sup1.cif
DOI:
10.1107/S2053229614019834/fn3178Isup2.hkl
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2014
detail.hit.zdb_id:
2025703-X