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Toxicity of Halogen, Sulfur and Chlorinated Aromatic Compounds: A Quantitative-Structure-Toxicity-Relationship (QSTR)
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Author(s): Ashutosh Kumar Gupta (Udai Pratap Autonomous College, India), Arindam Chakraborty (Indian Institute of Technology Kharagpur, India), Santanab Giri (Indian Institute of Technology Kharagpur, India), Venkatesan Subramanian (Central Leather Research Institute, India)and Pratim Chattaraj (Indian Institute of Technology Kharagpur, India)
Copyright: 2013
Pages: 14
Source title:
Methodologies and Applications for Chemoinformatics and Chemical Engineering
Source Author(s)/Editor(s): A. K. Haghi (University of Guilan, Iran)
DOI: 10.4018/978-1-4666-4010-8.ch005
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Abstract
In this paper, quantitative–structure–toxicity–relationship (QSTR) models are developed for predicting the toxicity of halogen, sulfur and chlorinated aromatic compounds. Two sets of compounds, containing mainly halogen and sulfur inorganic compounds in the first set and chlorinated aromatic compounds in the second, are investigated for their toxicity level with the aid of the conceptual Density Functional Theory (DFT) method. Both sets are tested with the conventional density functional descriptors and with a newly proposed net electrophilicity descriptor. Associated R2, R2CV and R2adj values reveal that in the first set, the proposed net electrophilicity descriptor (??±) provides the best result, whereas in the second set, electrophilicity index (?) and a newly proposed descriptor, net electrophilicity index (??±) provide a comparable performance. The potential of net electrophilicity index to act as descriptor in development of QSAR model is also discussed.
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