Solid state structures and solution behaviour of tetranuclear lanthanide(iii) carbonate-bridged coordination compounds of chiral 3 + 3 amine macrocycle

Abstract

The linking of two dinuclear macrocyclic units of large triphenolic hexaazamine by two carbonate anions results in the formation of dimeric tetranuclear Sm(III), Eu(III) and Gd(III) complexes. These complexes were...

Photocatalytic product-selective reduction of CO2, CO and carbonates

“…(SmL)2CO3 is a stable off-cycle species that hampers catalysis; its formation can be slowed down by diluting the reaction mixture. 21,32 Decreasing [SmL] from 1 mM to 1 µM increased the yield from nCO = 0.14 mmol to 0.75 mmol (Figure 2a). The corresponding TONCO = 378000 is the highest reported to date for any photocatalytic system (Table S9).…”

“…CO2 capture, storage and utilization involves conversion to carbamate/carbamic acid, carbonate or bicarbonate, and its energy-demanding release. 20 Lewis acidic Ln(III) species can capture CO2 as carbonate, 21 a useful methanation feedstock. 22 Reactive CO2 capture utilises captured CO2 directly as the substrate, making these processes more economically viable.…”