Evidence for the trans-influence of axial substituents as a significant factor determining the structure and stability of five-coordinate complexes: molecular structure of the first simple five-coordinate dialkylaluminum O,O'-chelate complex
J. Lewinski et al., Evidence for the trans-influence of axial substituents as a significant factor determining the structure and stability of five-coordinate complexes: molecular structure of the first simple five-coordinate dialkylaluminum O,O'-chelate complex, INORG CH C, 2(8), 1999, pp. 374-377
The addition of 4-methylpyridine to Me2Al[OC(Me) C6H4-2-O] produced the rel
atively stable five-coordinate Lewis acid-base adduct Me2Al [OC(Me)C6H4-2-O
] . (gamma-picoline). The resulting compound has been characterized by H-1
and Al-27 NMR spectroscopy and cryoscopic molecular weight measurements and
the molecular structure has been confirmed by X-ray crystallography. X-ray
structure analysis of this simple five-coordinate complex reveals that the
trans-influence of axial substituents is a significant factor controlling
the structure and stability of five-coordinate aluminum compounds. (C) 1999
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