RT info:eu-repo/semantics/article
T1 Group 13 salphen compounds (In, Ga and Al): a comparison of their structural features and activities as catalysts for cyclic carbonate synthesis
A1 Jaraba Cabrera, Diego
A1 Lewis, Ryan D.
A1 Díez Poza, Carlos
A1 Álvarez-Miguel, Lucía
A1 Mosquera, Marta E. G.
A1 Hamilton, Alex
A1 Whiteoak, Christopher J.
AB Many complexes based on group 13 elements have been successfully applied as catalysts for the synthesisof cyclic carbonates from epoxides and CO2 and to date these have provided some of the most activecatalysts developed. It is notable that most reports have focused on the use of aluminium-based compoundslikely because of the well-established Lewis acidity of this element and its cost. In comparison,relatively little attention has been paid to the development of catalysts based on the heavier group 13elements, despite their known Lewis acidic properties. This study describes the synthesis of aluminium,gallium and indium compounds supported by a readily prepared salphen ligand and explores both theircomparative structures and also their potential as catalysts for the synthesis of cyclic carbonates. Inaddition, the halide ligand which forms a key part of the compound has been systematically varied andthe effect of this change on the structure and catalytic activity is also discussed. It is demonstrated thatthe indium compounds are actually, and unexpectedly, the most active for cyclic carbonate synthesis,despite their lower Lewis acidity when compared to their aluminium congeners. The experimental observationsfrom this work are fully supported by a Density Functional Theory (DFT) study, which providesimportant insights into the reasons as to why the indium catalyst with bromide, [InBr(salphen)], is mostactive.
PB The Royal Society of Chemistry
SN 1477-9226
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/74511
UL https://uvadoc.uva.es/handle/10324/74511
LA spa
NO Dalton Transactions, 2023, 52(18), 5882-5894.
NO Producción Científica
DS UVaDOC
RD 09-mar-2025