Toxicity of halogen, sulfur and chlorinated aromatic compounds:A quantitative structure toxicity relationship (QSTR) based study

Gupta, Ashutosh ; Chakraborty, Arindam ; Giri, Santanab ; Subramanian, Venkatesan ; Chattaraj, Pratim Kumar (2011) Toxicity of halogen, sulfur and chlorinated aromatic compounds:A quantitative structure toxicity relationship (QSTR) based study International Journal of Chemoinformatics and Chemical Engineering, 1 (1). pp. 61-74. ISSN 2155-4110

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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, R2 CV and R2 adj values reveal that in the first set, the proposed net electrophilicity descriptor (Δω ± ) provides the best result, whereas in the second set, electrophilicity index (ω) and a newly proposed descriptor, net electrophilicity index (Δω ± ) provide a comparable performance. The potential of net electrophilicity index to act as descriptor in development of QSAR model is also discussed.

Item Type:Article
Source:Copyright of this article belongs to IGI Global.
Keywords:Conceptual DFT; Electrophilicity; Halogen Toxicity; Net Electrophilicity; QSTR
ID Code:84426
Deposited On:25 Feb 2012 11:58
Last Modified:25 Feb 2012 11:58

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