SYNTHESIS AND STRUCTURAL STUDIES OF 4-COORDINATED AND 5-COORDINATED MONOMERIC ALKYLALUMINUM O,N-CHELATE COMPOUNDS DERIVED FROM 2-AMINOACETOPHENONE - CRYSTAL AND MOLECULAR-STRUCTURE OF THE 5-COORDINATED MEAL[O=C(ME)C6H4-2-NH](2) COMPLEX

Authors
LEWINSKI J ZACHARA J KOPEC T OCHAL Z
Citation
J. Lewinski et al., SYNTHESIS AND STRUCTURAL STUDIES OF 4-COORDINATED AND 5-COORDINATED MONOMERIC ALKYLALUMINUM O,N-CHELATE COMPOUNDS DERIVED FROM 2-AMINOACETOPHENONE - CRYSTAL AND MOLECULAR-STRUCTURE OF THE 5-COORDINATED MEAL[O=C(ME)C6H4-2-NH](2) COMPLEX, Polyhedron, 16(8), 1997, pp. 1337-1341
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
16
Issue
8
Year of publication
1997
Pages
1337 - 1341
Database
ISI
SICI code
0277-5387(1997)16:8<1337:SASSO4>2.0.ZU;2-6
Abstract
The reaction of Me(3)Al with 1 and 2 equiv. of 2-aminoacetophenone yie lded Me(2)Al[O=C(Me)C6H4-2-NH] (1) and MeAl[O=C(Me)C6H4-2-NH](2) (2), respectively. Compound 2 was also obtained in the reaction of 1 with 1 equiv. of 2-aminoacetophenone. The addition of 4-methylpyridine (py-M e) to 1 produced the Lewis acid-base adduct Me(2)Al[O=C(Me)C6H4-2-NH]. py-Me (3). The resulting compounds have been characterized by element al analysis, cryometric molecular weight determination and H-1 and Al- 27 NMR spectroscopy. These studies revealed that compound 1 has a four -coordinated chelate structure in solution, while 2 and 3 are five-coo rdinated monomeric complexes. The molecular structure of 2 has been co nfirmed by single-crystal X-ray crystallography. Copyright (C) 1997 El sevier Science Ltd.