2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination

Mix A, Berlekamp UH, Stammler H-G, Neumann B, Jutzi P (1996)
JOURNAL OF ORGANOMETALLIC CHEMISTRY 521(1-2): 177-183.

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Abstract
The synthesis of 2-(methoxymethyl)phenylsilanes and 2-(isopropoxymethyl)phenylsilanes is described. The coordination behaviour of the ether side chains has been studied by NMR spectroscopy. In 2-(alkoxymethyl)phenylsilicon compounds with methoxy, hydride or phenyl groups the silicon atom is assumed to be tetracoordinated. Pentacoordination is confirmed in trifluoro-[2-(methoxymethyl)phenyl]silane (11) and trifluoro-[2-(isopropoxymethyl)phenyl]silane (12). The free energy of activation for ligand permutation at silicon in trifluoro-[2-(methoxymethyl)phenyl]silane (11) is estimated to be below 9 kcal mol(-1). The synthesis of phenyl-[2-(methoxymethyl)phenyl]silyl triflate (13) is described. In the solid state a short silicon-donor oxygen distance is observed, indicating strong bonding interaction. The structure of 13 in solution is discussed on the basis of NMR data and conductivity measurements.
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Mix A, Berlekamp UH, Stammler H-G, Neumann B, Jutzi P. 2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination. JOURNAL OF ORGANOMETALLIC CHEMISTRY. 1996;521(1-2):177-183.
Mix, A., Berlekamp, U. H., Stammler, H. - G., Neumann, B., & Jutzi, P. (1996). 2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 521(1-2), 177-183.
Mix, A., Berlekamp, U. H., Stammler, H. - G., Neumann, B., and Jutzi, P. (1996). 2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination. JOURNAL OF ORGANOMETALLIC CHEMISTRY 521, 177-183.
Mix, A., et al., 1996. 2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 521(1-2), p 177-183.
A. Mix, et al., “2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination”, JOURNAL OF ORGANOMETALLIC CHEMISTRY, vol. 521, 1996, pp. 177-183.
Mix, A., Berlekamp, U.H., Stammler, H.-G., Neumann, B., Jutzi, P.: 2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination. JOURNAL OF ORGANOMETALLIC CHEMISTRY. 521, 177-183 (1996).
Mix, Andreas, Berlekamp, UH, Stammler, Hans-Georg, Neumann, B, and Jutzi, Peter. “2-(Alkoxymethyl)phenylsilicon compounds: The search for pentacoordination”. JOURNAL OF ORGANOMETALLIC CHEMISTRY 521.1-2 (1996): 177-183.
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