Developments in Heterobimetallic s-Block Systems: Synthesis and Structural Survey of Molecular M/Ae (M = Li, Na, K, Cs; Ae = Ca, Sr) Aryloxo Complexes

A series of novel heterobimetallic group 1/strontium and group 1/calcium aryloxo complexes having the composition [MAe(Odpp)3] [Ae = Sr and M = Na (1), K (2, 3), Cs (4); Ae = Ca and M = Na (5), K (6), Cs (7)] or [M2Ae(Odpp)4] [M = Li and Ae = Sr (9), Ca (10)] have been prepared using 2,6-diphenylphe...

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Bibliographic Details
Published in:Inorganic chemistry 2008-06, Vol.47 (11), p.4669-4681
Main Authors: Zuniga, Maria Felisa, Deacon, Glen B, Ruhlandt-Senge, Karin
Format: Article
Language:English
Subjects:
Calcium
Lewis base
Ligands
Lithium
Stabilization
Strontium
Toluene
Volatility
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Summary:A series of novel heterobimetallic group 1/strontium and group 1/calcium aryloxo complexes having the composition [MAe(Odpp)3] [Ae = Sr and M = Na (1), K (2, 3), Cs (4); Ae = Ca and M = Na (5), K (6), Cs (7)] or [M2Ae(Odpp)4] [M = Li and Ae = Sr (9), Ca (10)] have been prepared using 2,6-diphenylphenol (HOdpp) as the ligand. Through the use of solid-state direct metalation, these compounds were obtained either directly from the reaction vessel or after workup in toluene. The Lewis base adduct [KCa(Odpp)3(thf)] (8) was obtained by treatment of [KCa(Odpp)3] (6) with tetrahydrofuran (thf). All of the compounds displayed extensive metal−π-arene interactions, which provide significant stabilization in these reactive species. The thermal stabilities and volatilities of representative heterobimetallic strontium and calcium complexes were investigated using thermogravimetric analysis.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic702466d