Issue 2, 2010
From the journal:

Dalton Transactions

A new hexakis(isocyanato)silicate(IV) and the first neutral Lewis-base adducts of silicon tetraisocyanate†

Peter Portius*a  and  Martin Davisa  

* Corresponding authors

a Department of Chemistry, The University of Sheffield, Brook Hill, UK
E-mail: p.portius@sheffield.ac.uk
Fax: +44 (0)114-22-29346
Tel: +44 (0)114-22-29385

Abstract

The new silicates K2Si(NCE)6, E = O, S (1a,b) were synthesised directly by reaction of silicon tetrachloride with potassium cyanate or thiocyanate. 1a,b can be converted to the salts (PPN)2[Si(NCE)6] (2a,b) with bulky cations (PPN+ = N(PPh3)2+), which contain isolated silicate dianions. Reaction of 1a with diimines affords the hexacoordinate complexes Si(NCO)4L, L = bpy (3), phen (4), which are the first isolated neutral adducts to Si(NCO)4. The compounds were characterised by a combination of IR and NMR spectroscopies, MS, TGA, DSC and X-ray diffraction.

Graphical abstract: A new hexakis(isocyanato)silicate(IV) and the first neutral Lewis-base adducts of silicon tetraisocyanate

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Article information

DOI
https://doi.org/10.1039/B912736D
Article type
Paper
Submitted
29 Jun 2009
Accepted
27 Aug 2009
First published
17 Sep 2009

Dalton Trans., 2010,39, 527-532

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A new hexakis(isocyanato)silicate(IV) and the first neutral Lewis-base adducts of silicon tetraisocyanate

P. Portius and M. Davis, Dalton Trans., 2010, 39, 527 DOI: 10.1039/B912736D

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