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Donor‐Stabilized Aluminum( II ) Bromide
Author(s) -
Mocker Mario,
Robl Christian,
Schnöckel Hansgeorg
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199408621
Subject(s) - anisole , disproportionation , chemistry , adduct , medicinal chemistry , bromide , solid state , ion , aluminium , inorganic chemistry , organic chemistry , catalysis
Cryochemically prepared AlBr and AlBr 3 react in anisole to form donor‐stabilized AlBr 2 , which precipitates in the form of yellow needles with the composition Al 2 Br 4 · 2 anisole. In the solid state the compound is stable at room temperature with regard to disproportionation into Al and Al‴ species. The Al‐Al distance in the adduct (252.7pm) is roughly as short as that in the radical anion [Al 2 R 4 ] .− (RCH(SiMe 3 ) 2 ), which contains an ALAL a bond (253 pm) strengthened by π bond contributions.