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Tris(tri‐ tert ‐butylsilyl)digallanyl ( t Bu 3 Si) 3 Ga 2 : A New Type of Compound for a Heavy Group 13 Element
Author(s) -
Wiberg Nils,
Amelunxen Kerstin,
Nöth Heinrich,
Schwenk Holger,
Kaim Wolfgang,
Klein Axel,
Scheiring Thomas
Publication year - 1997
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.199712131
Subject(s) - crystallography , chemistry , unpaired electron , metastability , group (periodic table) , type (biology) , stereochemistry , molecule , ecology , organic chemistry , biology
Blue‐black trisupersilyldigallanyl , a new metastable inorganic radical, forms in the reaction of GaCl 3 with t Bu 3 SiNa in pentane at room temperature according to Equation (a). The X‐ray structure analysis reveals that it contains a planar Si 2 Ga II Ga I and a nearly linear Ga II Ga I Si framework; according to the ESR spectrum the unpaired electron resides in both Ga atoms. Surprisingly, the analogous reaction of AlCl 3 and t Bu 3 SiNa (Al instead of Ga in Equation (a)) does not lead to trisupersilyldialanyl, but to red tetrasupersilyldialane ( t Bu 3 Si) 2 Al–Al(Si t Bu 3 ) 2 .