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Stabilization of the [AlMe 2 ] ⊕ Cation by Crown Ethers
Author(s) -
Bott Simon G.,
Alvanipour Abbas,
Morley S. David,
Atwood David A.,
Means C. Mitchell,
Coleman Anthony W.,
Atwood Jerry L.
Publication year - 1987
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198704851
Subject(s) - oxygen atom , crown (dentistry) , chemistry , oxygen , crystallography , stereochemistry , inorganic chemistry , polymer chemistry , molecule , materials science , organic chemistry , composite material
Of interest for Ziegler–Natta systems with donor ligands are the structures of the cations of 1 and 2 . The cation [AlMe 2 ] ⊕ is encapsulated by crown ethers and in 1 is bound to three of the six oxygen atoms while in 2 it is bound to all five oxygen atoms; the MeAlMe angle in 1 is 141 ° , in 2 178 ° . ( 1 contains [18]crown‐6, 2 contains [15]crown‐5.)