PMID- 26874948 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20181113 IS - 0948-5023 (Electronic) IS - 0948-5023 (Linking) VI - 22 IP - 3 DP - 2016 Mar TI - Estimation of melting points of large set of persistent organic pollutants utilizing QSPR approach. PG - 55 LID - 10.1007/s00894-016-2917-0 [doi] AB - The presence of polyhalogenated persistent organic pollutants (POPs), such as Cl/Br-substituted benzenes, biphenyls, diphenyl ethers, and naphthalenes has been identified in all environmental compartments. The exposure to these compounds can pose potential risk not only for ecological systems, but also for human health. Therefore, efficient tools for comprehensive environmental risk assessment for POPs are required. Among the factors vital for environmental transport and fate processes is melting point of a compound. In this study, we estimated the melting points of a large group (1419 compounds) of chloro- and bromo- derivatives of dibenzo-p-dioxins, dibenzofurans, biphenyls, naphthalenes, diphenylethers, and benzenes by utilizing quantitative structure-property relationship (QSPR) techniques. The compounds were classified by applying structure-based clustering methods followed by GA-PLS modeling. In addition, random forest method has been applied to develop more general models. Factors responsible for melting point behavior and predictive ability of each method were discussed. FAU - Watkins, Marquita AU - Watkins M AD - Interdisciplinary Center for Nanotoxicity, Department of Chemistry and Biochemistry, Jackson State University, P.O. Box: 17910, Jackson, MS, USA. FAU - Sizochenko, Natalia AU - Sizochenko N AD - Interdisciplinary Center for Nanotoxicity, Department of Chemistry and Biochemistry, Jackson State University, P.O. Box: 17910, Jackson, MS, USA. FAU - Rasulev, Bakhtiyor AU - Rasulev B AD - Interdisciplinary Center for Nanotoxicity, Department of Chemistry and Biochemistry, Jackson State University, P.O. Box: 17910, Jackson, MS, USA. AD - Center for Computationally Assisted Science and Technology, North Dakota State University, Fargo, ND, USA. FAU - Leszczynski, Jerzy AU - Leszczynski J AD - Interdisciplinary Center for Nanotoxicity, Department of Chemistry and Biochemistry, Jackson State University, P.O. Box: 17910, Jackson, MS, USA. jerzy@icnanotox.org. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20160213 PL - Germany TA - J Mol Model JT - Journal of molecular modeling JID - 9806569 RN - 0 (Environmental Pollutants) RN - 0 (Organic Chemicals) SB - IM MH - Cluster Analysis MH - Environmental Pollutants/*chemistry MH - Models, Chemical MH - Models, Statistical MH - Organic Chemicals/*chemistry MH - *Quantitative Structure-Activity Relationship MH - *Transition Temperature OTO - NOTNLM OT - Melting point OT - Organic pollutants OT - POPs OT - Partial least squares OT - QSPR OT - Random forest EDAT- 2016/02/15 06:00 MHDA- 2016/12/15 06:00 CRDT- 2016/02/15 06:00 PHST- 2015/10/23 00:00 [received] PHST- 2016/01/18 00:00 [accepted] PHST- 2016/02/15 06:00 [entrez] PHST- 2016/02/15 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] AID - 10.1007/s00894-016-2917-0 [pii] AID - 10.1007/s00894-016-2917-0 [doi] PST - ppublish SO - J Mol Model. 2016 Mar;22(3):55. doi: 10.1007/s00894-016-2917-0. Epub 2016 Feb 13.