Publications by authors named "Alexandre B Kremer"
Planet-compatible pathways for transitioning the chemical industry.
Proc Natl Acad Sci U S A
February 2023
Article Synopsis
- Chemical products like plastics and fertilizers are important for our daily lives but can harm the environment when made and used.
- The study suggests seven ways to make the chemical industry better for the planet by 2050, which could cost between $1.2 and $3.7 trillion.
- These improvements could cut the demand for chemicals by 23-33% and help reduce harmful emissions while still providing the chemical products we need.
The impact of the metal size and Lewis acidity on the polymerization activity of group 13 metal complexes was studied, and it was shown that, within the same ligand family, indium complexes are far more reactive and selective than their gallium analogues. To this end, gallium and aluminum complexes supported by a tridentate diaminophenolate ligand, as well as gallium complexes supported by N,N'-ethylenebis(salicylimine)(salen) ligands, were synthesized and compared to their indium analogues. Using the tridentate ligand set, it was possible to isolate the gallium chloride complexes 3 and (±)-4 and the aluminum analogues 5 and (±)-6.
View Article and Find Full Text PDFThe synthesis of the first alkoxide-bridged indium complex supported by a chiral dinucleating ligand platform (1), along with its zinc analogue (2), is reported. Both complexes are synthesized in a one-pot reaction starting from a chiral dinucleating bis(diamino)phenolate ligand platform, sodium ethoxide, and respective metal salts. The dinucleating indium analogue (7) based on an achiral ligand backbone is also reported.
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