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Donor-stabilized five-coordinate cationic chelate silicon compounds with two (O→Si)-coordinating ligands

Taylor, Peter and Bassindale, Alan (2011). Donor-stabilized five-coordinate cationic chelate silicon compounds with two (O→Si)-coordinating ligands. Russian Journal of General Chemistry, 81(12) pp. 2412–2427.

DOI (Digital Object Identifier) Link: https://doi.org/10.1134/S1070363211120036
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Abstract

Cationic O→Si-coordinated bis-C,O-chelate silicon complexes [(LCH2)2Si(F)]BF4, containing monoanionic AcN(Me)CH2, 2-oxoperhydroazepinomethyl, 2,2-dimethyl-4-oxobenzo[1,3]oxazin-3-ylmethyl, and 4-methyl-2-oxoquinolinomethyl C,O-coordinating ligands were synthesized by the reaction of trimethylsilyl derivatives of amides, lactams, and related compounds with (ClCH2)2SiC12 in a 2:1 ratio. The synthesized complexes were reacted with KF to obtain six-coordinate bis-C,O-chelates [(LCH2)2SiF2] which were then converted into the starting tetrafluoroborates by treatment with BF3•Et2O. First representatives of cationic bis-O,O'-chelate silicon complexes with a 2-hydroxyacid amide fragment {XSi[OCH(R)C(O)NMe2]2}Y (X = C1, Me, t-Bu, Ph, BrCH2; R = H, Me; Y - Cl-, C1HC1-, HgBr 3 - ) were synthesized by the reaction of XSiC13 with O→SiMe3 derivatives of dimethylamides of (S)-lactic and glycolic acids in a 1:2 ratio or by transesterification of XSi(OMe)3 with glycolic acid dimethylamide followed by addition of acetyl bromide (ratio 1:3:1). The structure of the resulting chelates was proved by X-ray diffraction analysis.

Item Type: Journal Item
Copyright Holders: 2011 Pleiades Publishing, Ltd.
ISSN: 1070-3632
Project Funding Details:
Funded Project NameProject IDFunding Body
Not Set09-03-00669Russian Foundation for Basic Research
Not Set10-03-00824Russian Foundation for Basic Research
Not Set11-03-00655Russian Foundation for Basic Research
Extra Information: Original Russian Text © A.G. Shipov, A.A. Korlyukov, E.P. Kramarova, D.E. Arkhipov, S.Yu. Bylikin, Fan Hunze, S.A. Pogozhikh, T.P. Murasheva, V.V. Negrebetskii, V. N. Khrustalev, Yu.E. Ovchinnikov, A.R. Bassindale, P.G.A. Taylor, Yu.I. Baukov, 2011, published in Zhurnal Obshchei Khimii, 2011,
Vol. 81, No. 12, pp. 1963–1978.
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Other Departments > Vice-Chancellor's Office
Other Departments
Item ID: 36013
Depositing User: Peter Taylor
Date Deposited: 16 Jan 2013 12:26
Last Modified: 07 Dec 2018 10:12
URI: http://oro.open.ac.uk/id/eprint/36013
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