The syntheses and structures of some main group complexes of the sterically hindered N,N'-bis(2,6-diisopropylphenyl)-4-toluamidinate ligand
Date
2005
Authors
Boere, Rene T.
Cole, Marcus Lawford
Junk, Peter C.
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Journal article
Citation
New Journal of Chemistry, 2005; 29(1):128-134
Statement of Responsibility
René T. Boeré, Marcus L. Cole and Peter C. Junk
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Abstract
The stoichiometric reaction of the bulky benzamidine N,N’-bis(2,6-diisopropylphenyl)-4-toluamidine (HDippAm) with the metal alkyls BunLi (1 : 1 in THF), Bu₂Mg (2 : 1 in THF) and Me₂Al (1 : 1 in Et₂O) is presented. This provides the mononuclear dihapto benzamidinate compounds [Li(DippAm)(THF)2] (1), [Mg(DippAm)₂] (2) and [Al(DippAm)Me₂] (3), respectively. Compound 3 was also obtained by salt elimination using dimethylaluminium chloride and 1. All three compounds exhibit sterically strained geometries that are maintained in solution at increased temperatures. Compound 3 displays exceptional thermal and aerobic stability, while 2 constitutes a rare example of non-porphyrin supported square planar magnesium.
School/Discipline
School of Chemistry and Physics : Chemistry
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© Royal Society of Chemistry 2005