Conclusions
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1.
The results of x-ray diffraction investigations of methylphenylsiloxanes with cruciform and spirocyclic structures with junction atoms of silicon and titanium are discussed.
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2.
In the cruciform compounds, containing hydroxyl groups at the ends of the branches, the molecular mobility is substantially limited in comparison with compounds of analogous structure with triphenylsiloxy groups at the ends of the branches.
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3.
A junction titanium atom, in comparison with silicon, hinders the molecular mobility, and, consequently, the crystallization.
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4.
Spirocyclic compounds are capable of crystallizing under normal conditions.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2145–2150, October, 1971.
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Andrianov, K.A., Elinek, V.I., Sipyagina, M.A. et al. X-ray diffraction studies of certain spirocyclic and cruciform heteroorganic compounds. Russ Chem Bull 20, 2028–2031 (1971). https://doi.org/10.1007/BF00851243
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DOI: https://doi.org/10.1007/BF00851243