ISSN:
0009-2940
Keywords:
Magnesium tetrahydridoaluminate
;
Magnesium halide tetrahydridoaluminate
;
(Organyloxo)magnesium tetrahydridoaluminates
;
X-ray structures
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The molecular structures of XMg(A1H4) · 4 THF (1a, 2, 3a) (X = A1H4, Cl, Br) have been determined by X-ray structural analysis. Each compound possesses a hexacoordinated Mg center and AlH4- groups bound to this center via a single hydride bridge bond. Attempts to prepare ROMg(AlH4) compounds were successful only for sterically demanding groups R (R = CMe3, CPh3, naph, mes, smes). The 2-naphthoxy derivative 7, a compound with the composition (naphO)Mg-(AlH4) · 2.5 THF, is a dimer with a central Mg2O2 ring. One of its two AlH4- groups is terminally bound to one Mg atom, the other bridges the two Mg centers. This structure indicates how AlH4- transfer may occur from ROMg(AlH4) compounds to form Mg(OR)2 and Mg(AlH4)2.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19951281007
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