article · Molecular Catalysis
Zinc(II) complexes [Zn(L1-L5)Cl2] with tetra-aza donor ligands bearing phenanthroline and bipyridine bis(aniline) skeleton L1-L5 have been prepared and characterised. These ligands were selected to analyse the influence on the catalytic activity for the CO2-cycloaddition to epoxides of three parameters: the steric hindrance of the orto substituent of the aniline ring, the central skeleton and the nature of the non-aromatic amine. X-ray diffraction characterisation of [Zn(L1)Cl2] and [Zn(L2)Cl2] showed that the geometry is pentacoordinate while in the case of [Zn(L5)Cl2] a four-coordinate tetrahedral complex was formed. Computational calculations using density functional theory methods (DFT) agreed with these results. These complexes combined with tetrabutylammonium bromide (TBAB) are very selective for the CO2/terminal epoxides coupling to form cyclic carbonates providing activity up to TOF 565 h−1.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.1016/j.mcat.2023.112992
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
