Recent advances in cooperative activation of CO₂and N₂O by bimetallic coordination complexes or binuclear reaction pathways

Abstract

The gaseous small molecules, CO2 and N2O, play important roles in climate change and ozone layer depletion, and they hold promise as underutilized reagents and chemical feedstocks. However, productive transformations...

Diverse Thermal and Photochemical Reactivity of an Al–Fe Bonded Heterobimetallic Complex

“…Heterobimetallic complexes can involve any two metals from the periodic table, and significant efforts have been spent to determine combinations in which there are potentially beneficial differences between the two metal centers. , As the field continues to expand, many applications of heterobimetallic complexes have been discovered in bond activation and catalysis. − The two most abundant metals on earth are aluminum (7.4%) and iron (5%), and so it is surprising that the reaction chemistry of Al/Fe heterobimetallic complexes is underdeveloped in this context. The groups of Nöth, Braunschweig, Aldridge, Crimmin, and Fischer synthesized different Al–Fe bonded heterobimetallic complexes during 1996–2021 ( I - VI ; Figure a), but in none of these cases were reactivity studies reported. − Very recently we synthesized the heterobimetallic Al–Fe complex 1 and studied its reactivity with CO 2 , cyclohexene oxide, and benzophenone (Figure b) .…”

Recent developments on the transformation of CO2utilising ligand cooperation and related strategies

“…During the writing of this manuscript, an excellent perspective review was published by Mankad and co-workers in this journal. 152 The perspective provides a comprehensive overview on cooperative bimetallic chemistry involving the activation of CO2 (in addition to NO2). Thus, aspects will only be covered briefly here to highlight the utilisation of two metals in the cooperative activation of CO2 and link with those systems we have covered in the above sections.…”

Catalytic Nitrous Oxide Reduction with H2 Mediated by Pincer Ir Complexes

“…Metal-based heterogeneous catalysts have been shown to catalyze the reduction of N 2 O with H 2 , usually under relatively harsh conditions . Conversely, although activation of N 2 O by transition-metal complexes and subsequent reduction with H 2 to innocuous N 2 and water have been investigated, − there is a lack of competent homogeneous catalytic systems for this reaction (Figure ). Seminal work by Bergman et al demonstrated the feasibility of a stepwise hydrogenation of N 2 O.…”