Postfunctionalization of periodic mesoporous silica SBA-1 with magnesium(II) and iron(II) silylamides

Dalton Transactions : an International Journal of Inorganic Chemistry
Thomas DeschnerReiner Anwander

Abstract

Magnesium silylamide complexes Mg[N(SiHMe(2))(2)](2)(THF)(2) and Mg[N(SiPhMe(2))(2)](2) were synthesized according to transsilylamination and alkane elimination protocols, respectively, utilizing Mg[N(SiMe(3))(2)](2)(THF)(2) and [Mg(n-Bu)](2) as precursors. Cage-like periodic mesoporous silica SBA-1 was treated with donor solvent-free dimeric [Mg{N(SiHMe(2))(2)}(2)](2), [Mg{N(SiMe(3))(2)}(2)](2) and monomeric Mg[N(SiPhMe(2))(2)](2), producing hybrid materials [Mg(NR(2))(2)]@SBA-1 with magnesium located mainly at the external surface. Consecutive grafting of [Mg{N(SiHMe(2))(2)}(2)](2) and [Fe(II){N(SiHMe(2))(2)}(2)](2) onto SBA-1 led to heterobimetallic hybrid materials which exhibit complete consumption of the isolated surface silanol groups, evidencing intra-cage surface functionalization. All materials were characterized by DRIFT spectroscopy, nitrogen physisorption and elemental analysis.

References

Jun 12, 2003·Chemical Reviews·Mu-Hyun BaikStephen J Lippard
Apr 22, 2005·Angewandte Chemie·Michael W AndersonKenneth A Brakke
Jan 5, 2007·Chemistry : a European Journal·Clemens ZapilkoReiner Anwander
Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick
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Apr 6, 2011·Chemistry : a European Journal·Olaf MichelReiner Anwander
Jul 5, 2011·Inorganic Chemistry·Thomas DeschnerReiner Anwander

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Citations

Mar 19, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Yucang LiangReiner Anwander
Aug 1, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Yucang Liang, Reiner Anwander
Jun 1, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Yucang Liang, Martin Meixner
Jun 20, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Debabrata MukherjeeJun Okuda
Apr 25, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Ji-Dong LengDavid P Mills

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