Reactions of tetrakis[bis(trimethylsilyl)methyl]digallane(4) with carboxylic acids - Substituent exchange and bridging of the Ga-Ga bond by two carboxylato groups
Autor(en): | Uhl, W Hahn, I Reuter, H |
Stichwörter: | ALUMINUM ALUMINUM BOND; carboxylato bridges; Chemistry; Chemistry, Multidisciplinary; COMPOUND; CRYSTAL-STRUCTURES; DIGALLANE; GALLIUM-GALLIUM BONDS; INDIUM-INDIUM; RADICAL-ANION; REDUCTION | Erscheinungsdatum: | 1996 | Herausgeber: | VCH PUBLISHERS INC | Journal: | CHEMISCHE BERICHTE-RECUEIL | Volumen: | 129 | Ausgabe: | 12 | Startseite: | 1425 | Seitenende: | 1428 | Zusammenfassung: | Yellow tetrakis[bis(trimethylsilyl)methyl]digallane(4) 1 reacts with two equivalents of the carboxylic acids RCOOH (R = -C6H5, -p-BrC6H4, -3,5-Me(2)C(6)H(3), -CMe(3)) to yield almost quantitatively colorless products in which two bis(trimethylsilyl)methyl groups are replaced by two carboxylato ligands. As shown by a crystal structure determination with the 4-bromo-phenyl derivative (3), the Ga-Ga bond is bridged by both carboxylato groups in a chelating manner. The Ga-Ga distance is shortened to 238.5(2) pm (1: 254.1(1) pm) and the coordination number of the Ga atoms increased to four. |
ISSN: | 00092940 | DOI: | 10.1002/cber.19961291204 |
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geprüft am 05.05.2024