WANG Xinling, SHE Yuanbin, YU Yanmin, et al. Quantitative structure-selectivity relationship of metalloporphyrins in catalytic oxidation of o-nitrotoluene to o-nitrobenzaldehyde[J]. CIESC Journal, 2009, (10): 2473-2478.
WANG Xinling, SHE Yuanbin, YU Yanmin, et al. Quantitative structure-selectivity relationship of metalloporphyrins in catalytic oxidation of o-nitrotoluene to o-nitrobenzaldehyde[J]. CIESC Journal, 2009, (10): 2473-2478.DOI:
49 metalloporphyrins were designed and synthesized
and 9 quantum chemical parameters of them
such as geometric structure
charge distribution and the frontier molecular orbital etc
were calculated by using density functional method.Using the catalytic oxidation of o-nitrotoluene to o-nitrobenzaldehyde as a model reaction
effect of metalloporphyrin structures on the selectivity of o-nitrobenzaldehyde was investigated.Main factors that affected the selectivity were found out via stepwise regression analysis method
and a quantitative structureselectivity relationship equation was effectively established.Results showed that the Mulliken charge and the electrostatic potential of metal ions
the energy of the lowest unoccupied molecular orbital were the main factors affecting the selectivity of o-nitrobenzaldehyde.This equation could be used to provide a theoretical guidance to design metalloporphyrins with high selectivity.