QSAR Analyzes for the Predictive Toxicity of Substituted Phenols and Anilines to Fish (carp)

Ping Sun; Shu Mei Gao; Hiu Liu; Jian Ting Chen

doi:10.4028/www.scientific.net/AMM.295-298.109

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 295-298QSAR Analyzes for the Predictive Toxicity of...

QSAR Analyzes for the Predictive Toxicity of Substituted Phenols and Anilines to Fish (carp)

Abstract:

A quantitative structure-activity relationship (QSAR) study for predicting the acute toxicity 96h - LC50 values of substituted anilines and phenols to carp is presented in this work. For this, the descriptors were obtained with DFT method at the B3LYP/6-311G** level using the Gaussian 03 software package. Afterwards the obtained parameters were taken as theoretical descriptors to establish a QSAR model for predicting -lgLC50. The model contains two variables, energy of the highest occupied molecular orbital (EHOMO) and energy of the lowest unoccupied molecular orbital (ELUMO), which suggest that the main effect on biological toxicity of phenols and anilines is the interaction of electrons between the molecules of organic chemicals. Besides, the model was further validated by variance inflation factors (VIF) and t-test, and show fine stabilities and predictive abilities, which can be used to predict -lgLC50 of these kinds of compounds.

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Applied Mechanics and Materials (Volumes 295-298)

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109-112

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.295-298.109

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Online since:

February 2013

Authors:

Ping Sun, Shu Mei Gao, Hiu Liu, Jian Ting Chen

Keywords:

Acute Toxicity (-LgLC₅₀), QSAR, Substituted Phenols and Anilines

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