A New Route to Linear and Cyclic Perchlorosiloxanes
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Basenko, S. V.,Gebel', I. A.,Voronkov, M. G.,Klyba, L. V.,Mirskov, R. G.
p. 314 - 315
(2008/10/09)
The SiO/PN Isoelectronic Pair, I Perchlorocyclosiloxanes and Perchlorocyclophosphazenes. Vibrational Spectra and X-Ray Structure Analysis of (Cl2SiO)3 and (Cl2SiO)4
Hexachlorocyclotrisiloxane (2) and octachlorocyclotetrasiloxane (4) were prepared by reaction of SiCl4 with O2 at 955 deg C.Their mass spectra are compared with those of the isoelectronic cyclophosphazenes.The vibrational spectra of 2 and 4 are very similar and closely related to that of (PNCl2)3, but clearly different from that of the puckered (PNCl2)4 molecule.The X-ray examination of 2 and 4 reveals planarity of the (SiO)n, n = 3 and 4 ring systems, with d(Si-O) on average 1.619(4) and 1.584(3) Angstroem, respectively.
Wannagat, Ulrich,Bogedain, Gabriele,Schervan, Adrian,Marsmann, Heinrich C.,Brauer, David J.,et al.
p. 931 - 940
(2007/10/02)
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