01638nas a2200277 4500008004100000022001400041245014200055210006900197260007300266300001200339490000800351520062700359653002100986653001901007653003701026653001901063653001701082653002001099653002201119653001901141653001701160100001901177700001901196700001701215856012801232 2005 eng d a1381-116900aFactors affecting activation and utilization of carbon dioxide in cyclic carbonates synthesis over Cu and Mn peraza macrocyclic complexes0 aFactors affecting activation and utilization of carbon dioxide i aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB a199-2050 v2263 a
The catalytic activities of several Cu and Mn aza complexes for cyclic carbonate synthesis from CO2 and epoxides are reported. The various factors affecting activation of CO2 by metal complexes and its utilization in cyclic carbonate synthesis have been investigated. Fr-IR, UV-vis and EPR spectroscopic investigations reveal that CO2 coordinates to Cu in eta(1)-C mode of coordination. Nature of the ligand and substitution influence the lability of metal-CO2 bonding. The differences in the catalytic activities are correlated with the mode and strength of CO2 binding. (C) 2004 Elsevier B.V. All rights reserved.
10abenign synthesis10aCarbon dioxide10acatalysis by Cu and Mn complexes10aCO2 activation10aCO2 fixation10aCO2 utilization10acyclic carbonates10apolycarbonates10aspectroscopy1 aSrivastava, R.1 aBennur, T., H.1 aSrinivas, D. uhttp://library.ncl.res.in/content/factors-affecting-activation-and-utilization-carbon-dioxide-cyclic-carbonates-synthesis-0