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Structural Similarity in a Series of Alkali Metal Aluminates with Heteroleptic tert ‐Butoxide–Isobutyl Ligand Sets
Author(s) -
Whitelaw Michael T.,
Kennedy Alan R.,
Mulvey R. E.
Publication year - 2020
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.202000434
Subject(s) - chemistry , alkali metal , ligand (biochemistry) , monomer , crystallography , metal , ring (chemistry) , stereochemistry , organic chemistry , polymer , biochemistry , receptor
With the aim of increasing the number of well‐defined alkali metal aluminates, six new crystalline examples containing heteroleptic tert ‐butoxide – isobutyl ligand sets are reported. NMR spectroscopic studies in C 6 D 6 solution have determined their common general formula [( i Bu) 2 Al(O t Bu) 2 AM · (D)], where AM = Li, D = 2 THF, TMEDA or PMDETA; AM = Na, D = TMEDA or PMDETA; and AM = K, D = PMDETA. X‐ray crystallographic studies show that despite the different sized alkali metals involved all six complexes adopt a common dinuclear motif with [AlO(AM)O] ring cores. Though Al–O t Bu–Li linkages are common, the heavier alkali metal examples reported here are exceptionally rare. These structures could be interpreted as co‐complexes between monomeric forms of t BuO(AM) and ( i Bu) 2 Al(O t Bu).