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Aluminum Alkali Metalate Derivatives: Factors Driving the Final Nuclearity in the Crystal Form
Author(s) -
Muñoz M. Teresa,
Barandika Gotzone,
Bazán Begoña,
Cuenca Tomás,
Mosquera Marta E. G.
Publication year - 2017
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.201601428
Subject(s) - chemistry , alkali metal , lithium (medication) , crystallography , solid state , crystal structure , metal , crystallization , inorganic chemistry , organic chemistry , medicine , endocrinology
In this paper, we have completed the synthesis and characterization of a family of aluminum alkali metalate derivatives [MAlMe 4– x {2,6‐(MeO) 2 C 6 H 3 O} x ] n ( x = 1, 2; M = Li, Na, K) by preparing the new heterometallic ‐ate compounds [MAlMe 3 {2,6‐(MeO) 2 C 6 H 3 O}] 2 (M = Na and K) through the reaction between [AlMe 3 ] 2 and the appropriate alkali metal aryloxide [M{2,6‐(MeO) 2 C 6 H 3 O}] n (M = Na and K). Surprisingly, the solid‐state structures for these species, determined by X‐ray diffraction, show a different nuclearity than the lithium one, [AlLiMe 3 {2,6‐(MeO) 2 C 6 H 3 O}] 3 previously reported by us. This behavior contrasts to the one observed when [Al(OR)Me 2 ] is used as the aluminum precursor, which gives the tetrametallic species [AlMMe 2 {2,6‐(MeO) 2 C 6 H 3 O} 2 ] 2 . To rationalize the origins of the final nuclearity variation in the solid state within this family of heterometallic ‐ate compounds, a DFT study has been performed. The results of this analysis on whether the nuclearity in the solid state could stem from crystallization factors or from how the chemical attack had taken place are presented.