期刊
CHEMOSPHERE
卷 104, 期 -, 页码 170-176出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2013.11.002
关键词
Quantitative structure-toxicity relationship; Aquatic toxicity; Ionic liquids; Ecotoxicity; Green algae; Scenedesmus vacuolatus
资金
- Council of Scientific and Industrial Research (CSIR), Government of India, New Delhi
Hazardous potential of ionic liquids is becoming an issue of high concern with increasing application of these compounds in various industrial processes. Predictive toxicological modeling on ionic liquids provides a rational assessment strategy and aids in developing suitable guidance for designing novel analogues. The present study attempts to explore the chemical features of ionic liquids responsible for their ecotoxicity towards the green algae Scenedesmus vacuolatus by developing mathematical models using extended topochemical atom (ETA) indices along with other categories of chemical descriptors. The entire study has been conducted with reference to the OECD guidelines for QSAR model development using predictive classification and regression modeling strategies. The best models from both the analyses showed that ecotoxicity of ionic liquids can be decreased by reducing chain length of cationic substituents and increasing hydrogen bond donor feature in cations, and replacing bulky unsaturated anions with simple saturated moiety having less lipophilic heteroatoms. (c) 2013 Elsevier Ltd. All rights reserved.
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