Details

Autor(en) / Beteiligte

• Koptseva, Tatyana S
• Moskalev, Mikhail V
• Skatova, Alexandra A
• Rumyantcev, Roman V
• Fedushkin, Igor L

Titel

Reduction of CO2 with Aluminum Hydrides Supported with Ar-BIAN Radical-Anions (Ar-BIAN = 1,2-Bis(arylimino)acenaphthene)

Ist Teil von

• Inorganic chemistry, 2022-01, Vol.61 (1), p.206-213

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The reactions of H2AlCl with [(dpp-Bian)­Na­(Et2O)n] and [(ArBIG-Bian)­Na­(THF)] produce respective aluminum hydrides supported by radical-anionic 1,2-bis­(arylimino)­acenaphthene ligands, [(dpp-Bian)­AlH2] (1) and [(ArBIG-Bian)­AlH2(THF)] (2) (dpp-Bian = 1,2-bis­[(2,6-diisopropylphenyl)­imino]­acenaphthene); ArBIG-Bian = 1,2-bis­[(2,6-dibenzhydryl-4-methylphenyl)­imino]­acenaphthene). The reaction of 1 with CO2 proceeds with reduction of both CO bonds and results in diolate [{(dpp-Bian)­Al­(μ-O2CH2)}2] (3). Complex 2 reacts with CO2 to carbonate [{(ArBIG-Bian)­Al­(μ-OCH2OCO2)}2] (4) that is a result of the insertion of CO2 into the Al–O bond in diolate species formed initially. Aluminum monohydrides [(dpp-Bian)­AlH­(X)] (X = Cl, 5; Me, 6) react with CO2 to form respective alumoxanes [{(dpp-Bian)­AlX}2(μ-O)] (X = Cl, 7 and X = Me, 8). Compounds 1–4, 7, and 8 have been characterized by ESR and IR spectroscopy, and their molecular structures have been determined by single-crystal X-ray analysis.