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Structural Diversity of Tris(2‐hydroxyaryl)methane‐Derived Aluminium Complexes
Author(s) -
Oishi Masataka,
Ichinose Yuri,
Nomura Nobuyoshi
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501438
Subject(s) - chemistry , disproportionation , tris , aluminium , ligand (biochemistry) , aryl , yield (engineering) , aniline , methane , medicinal chemistry , monomer , polymer chemistry , organic chemistry , catalysis , metallurgy , biochemistry , alkyl , receptor , materials science , polymer
Tris(2‐hydroxyaryl)methane ligands coordinate to main group and transition metals in a variety of modes. However, for aluminium, only trinuclear complexes have previously been reported. To investigate the possibility of also developing both mono‐ and dinuclear aluminium complexes, the reactions of Et 3 Al and tris(2‐hydroxyaryl)methanes have been examined under various conditions. In this work, trialuminium complex 1b was formed by disproportionation of the initially generated monomeric complex 2′ (Al/ligand = 1:1) with Et 3 Al. This reaction allowed us to selectively synthesize aluminium complexes 1b , 2 , 5 , and 7 with different coordination modes. Furthermore, mononuclear complex 5b underwent rearrangement to yield the tris(aryloxy) complex 8 in C 6 D 6 under the appropriate conditions.