Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139458
Title: Donor-acceptor stabilized tetra(silanimine)
Authors: Shan, Yu-Liang
Leong, Bi-Xiang
Li, Yongxin
Ganguly, Rakesh
So, Cheuk-Wai
Keywords: Science::Chemistry
Issue Date: 2017
Source: Shan, Y.-L., Leong, B.-X., Li, Y., Ganguly, R., & So, C.-W. (2017). Donor-acceptor stabilized tetra(silanimine). Inorganic chemistry, 56(3), 1609–1615. doi:10.1021/acs.inorgchem.6b02727
Journal: Inorganic chemistry
Abstract: The synthesis of an oligo(silanimine) is described. The reaction of the amidinato silylene [LSiN(SiMe3)2] (1, L = PhC(NtBu)2) with SiI4 in toluene afforded a mixture of the silanimine [LSi(I)NSiI3] (2), SiMe3I, and Si2I6. The mechanistic studies showed that 1 reacts with SiI4 to form the silyl ionic intermediate "{LSi(I)N(SiMe3)2}+{SiI3}-", which then eliminates SiMe3I and "SiI2" to form the silanimine intermediate "LSi(I)NSiMe3". It further undergoes a substitution with another molecule of SiI4 to form a mixture of 2 and SiMe3I. In addition, "SiI2" undergoes an oxidative addition with SiI4 to form Si2I6. Subsequently, compound 2 reacted with [LiN(SiMe3)Ar] to form the silanimine [LSi(I)NSiI2N(SiMe3)Ar] (6, Ar = 2,6-iPr2C6H3), which was then treated with KC8 to give the donor-acceptor stabilized tetra(silanimine) [LSiN(SiMe3)SiNAr]2 (7). It comprises four formal silanimine ">Si═N-" units, which are linked together. Compounds 2, 6, and 7 were characterized by NMR spectroscopy and X-ray crystallography.
URI: https://hdl.handle.net/10356/139458
ISSN: 0020-1669
DOI: 10.1021/acs.inorgchem.6b02727
Schools: School of Physical and Mathematical Sciences 
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.6b02727.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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