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- W2093375188 abstract "Gallic acid (GA) is known by its antioxidant, anticarcinogenic properties and scavenger activity against several types of harmful free radicals. Molecularly imprinted polymers (MIPs) are used in separation of a pure compound from complex matrices. A stable template-monomer complex generates the MIPs with the highest affinity and selectivity for the template. The quantum chemical computations based on density functional theory (DFT) was used on the template Gallic acid (GA), monomer acrylic acid (AA) and GA-AA complex to study the nature of interactions involved in the GA-AA complex. B3LYP/6-31+G(2d,2p) model chemistry was used to optimize their structures and frequency calculations. The effect of porogen acetonitrile (ACN) on complex formation was included by using polarizable continuum model (PCM). The results demonstrated the formation of a stable GA-AA complex through the intermolecular hydrogen bonding between carboxylic acid groups of GA and AA. The Mulliken atomic charge analysis and simulated vibrational spectra also supported the stable hydrogen bonding interaction between the carboxylic acid groups of GA and AA with minimal interference of porogen ACN. Further, simulations on GA-AA mole ratio revealed that 1:4 GA-AA was optimum for synthesis of MIP for GA." @default.
- W2093375188 created "2016-06-24" @default.
- W2093375188 creator A5005498500 @default.
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- W2093375188 date "2013-12-01" @default.
- W2093375188 modified "2023-10-01" @default.
- W2093375188 title "Quantum chemical density functional theory studies on the molecular structure and vibrational spectra of Gallic acid imprinted polymers" @default.
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- W2093375188 doi "https://doi.org/10.1016/j.saa.2013.07.067" @default.
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