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Unusual Reactivity of Silicon Grease Towards Metal Alkoxides: Serendipity for Structural Chemistry
Author(s) -
Nahrstedt Vanessa,
Raauf Aida,
Hegemann Corinna,
Brune Veronika,
Schläfer Johannes,
Mathur Sanjay
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000474
Subject(s) - siloxane , alkoxide , silicon , reactivity (psychology) , metal , hydrolysis , grease , chemistry , polymer chemistry , nanocomposite , materials science , chemical engineering , organic chemistry , nanotechnology , catalysis , polymer , medicine , alternative medicine , pathology , engineering
Controlled synthesis of moisture sensitive metal alkoxides demands the use of silicon grease for the inert synthetic manipulation of starting materials using glass apparatus to avoid adventitious hydrolysis. Spontaneous reaction of the siloxane units (−OSi(Me 3 ) 2 ) n ) with the synthesized alkoxides often leads to molecular metal alkoxides based siloxane frameworks. These spontaneous incorporation of siloxane units into homo‐ and heterometallic alkoxide building blocks lead to the new multinuclear homo‐ and heterometallic alkoxide‐siloxide compounds [Ce 2 (O t Bu) 4 {Me 2 Si(O t Bu)O} 2 (NO 3 ) 2 ] ( 1 ), [Zr{(O i Pr) 2 {Me 2 SiO 2 }Sr{Zr 2 (O i Pr) 8 }} 2 ] ( 2 ) and [Sn 2 In 2 O 2 {Me 2 Si(O i Pr)O}(O i Pr) 5 ] 2 ( 3 ). Multifunctional coordination properties of these siloxane units enable the molecular approach to synthetically demanding polymetallic complexes for potential MO x ‐SiO x nanocomposites fabrication.