Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC)
Quantitative Structure-Properties Relationship (QSPR) and molecular dynamics simulations studies were carried out on the 53 lubricating oil additives and hydrogen-containing DLC (a-C: H). Good QSPR model was developed along with squared correlation coefficient (R2), adjusted squared correlation coef...
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| Format: | Article |
| Language: | English |
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Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
2020-08-01
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| Series: | Iranian Journal of Chemistry & Chemical Engineering |
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| Online Access: | http://www.ijcce.ac.ir/article_38358_19cf62f0195536d1c237c0edb55c088a.pdf |
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| author | Usman Abdulfatai Adamu Uzairu Sani Uba Gideon Adamu Shallangwa |
| author_facet | Usman Abdulfatai Adamu Uzairu Sani Uba Gideon Adamu Shallangwa |
| author_sort | Usman Abdulfatai |
| collection | DOAJ |
| description | Quantitative Structure-Properties Relationship (QSPR) and molecular dynamics simulations studies were carried out on the 53 lubricating oil additives and hydrogen-containing DLC (a-C: H). Good QSPR model was developed along with squared correlation coefficient (R2), adjusted squared correlation coefficient (R2adj), leave one out cross-validation coefficient (Q2) and the external validation (R2ext) of values 0.807208, 0.763674, 0.68867 and 0.6297 respectively which shows that model I was reliable and satisfactory. Molecular dynamics simulation binding energy calculations between the lubricant additives and the hydrogen-containing DLC (a-C: H) crystals surface revealed that the best molecular dynamic binding energy was found to be -2112.06 kcal/mol and was found to be better than the one reported by other researchers. Moreover, the lubricant additive with compound number 50** (S-(2-(benzo[d]thiazol-2-ylamino)-2-oxoethyl) O-hexyl carbonodithioate) was found to have the best molecular dynamic binding energy of -2112.06 kcal/mol which conformed with excellent best-normalized onset temperature (Tonset) 2.467K of the same compound. Moreover, Table 7 revealed that the time(s) used for every simulation varies from 12683.13s to 138841.09s for all the studied additives. This investigation will help in rational additive design and synthesis of new and better lubricant additives with predetermined promising binding energy and onset temperature (Tonset) and will provide valuable information for the understanding of dynamic binding energy between DLC substrate and the new compounds and will give the way toward the discovery of novel lubricating oil additives that can withstand high dynamic working temperature and also resist wearing and frictions. |
| first_indexed | 2024-12-18T10:25:44Z |
| format | Article |
| id | doaj.art-8d6bfd0927bc47c5bba5ea157cffaf55 |
| institution | Directory Open Access Journal |
| issn | 1021-9986 1021-9986 |
| language | English |
| last_indexed | 2024-12-18T10:25:44Z |
| publishDate | 2020-08-01 |
| publisher | Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR |
| record_format | Article |
| series | Iranian Journal of Chemistry & Chemical Engineering |
| spelling | doaj.art-8d6bfd0927bc47c5bba5ea157cffaf552022-12-21T21:10:59ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862020-08-0139428129510.30492/ijcce.2020.3835838358Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC)Usman Abdulfatai0Adamu Uzairu1Sani Uba2Gideon Adamu Shallangwa3Department of Chemistry, Ahmadu Bello University P.M.B. 1044, Zaria, NIGERIADepartment of Chemistry, Ahmadu Bello University P.M.B. 1044, Zaria, NIGERIADepartment of Chemistry, Ahmadu Bello University P.M.B. 1044, Zaria, NIGERIADepartment of Chemistry, Ahmadu Bello University P.M.B. 1044, Zaria, NIGERIAQuantitative Structure-Properties Relationship (QSPR) and molecular dynamics simulations studies were carried out on the 53 lubricating oil additives and hydrogen-containing DLC (a-C: H). Good QSPR model was developed along with squared correlation coefficient (R2), adjusted squared correlation coefficient (R2adj), leave one out cross-validation coefficient (Q2) and the external validation (R2ext) of values 0.807208, 0.763674, 0.68867 and 0.6297 respectively which shows that model I was reliable and satisfactory. Molecular dynamics simulation binding energy calculations between the lubricant additives and the hydrogen-containing DLC (a-C: H) crystals surface revealed that the best molecular dynamic binding energy was found to be -2112.06 kcal/mol and was found to be better than the one reported by other researchers. Moreover, the lubricant additive with compound number 50** (S-(2-(benzo[d]thiazol-2-ylamino)-2-oxoethyl) O-hexyl carbonodithioate) was found to have the best molecular dynamic binding energy of -2112.06 kcal/mol which conformed with excellent best-normalized onset temperature (Tonset) 2.467K of the same compound. Moreover, Table 7 revealed that the time(s) used for every simulation varies from 12683.13s to 138841.09s for all the studied additives. This investigation will help in rational additive design and synthesis of new and better lubricant additives with predetermined promising binding energy and onset temperature (Tonset) and will provide valuable information for the understanding of dynamic binding energy between DLC substrate and the new compounds and will give the way toward the discovery of novel lubricating oil additives that can withstand high dynamic working temperature and also resist wearing and frictions.http://www.ijcce.ac.ir/article_38358_19cf62f0195536d1c237c0edb55c088a.pdfqsprlubricant additive: diamond-like-carbon (dlc): hydrogen-containing dlc (a-c: h): density functional theory: genetic function algorithm: molecular dynamic |
| spellingShingle | Usman Abdulfatai Adamu Uzairu Sani Uba Gideon Adamu Shallangwa Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) Iranian Journal of Chemistry & Chemical Engineering qspr lubricant additive: diamond-like-carbon (dlc): hydrogen-containing dlc (a-c: h): density functional theory: genetic function algorithm: molecular dynamic |
| title | Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) |
| title_full | Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) |
| title_fullStr | Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) |
| title_full_unstemmed | Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) |
| title_short | Quantitative Structure-Properties Relationship of Lubricating Oil Additives and Molecular Dynamic Simulations Studies of Diamond-Like-Carbon (DLC) |
| title_sort | quantitative structure properties relationship of lubricating oil additives and molecular dynamic simulations studies of diamond like carbon dlc |
| topic | qspr lubricant additive: diamond-like-carbon (dlc): hydrogen-containing dlc (a-c: h): density functional theory: genetic function algorithm: molecular dynamic |
| url | http://www.ijcce.ac.ir/article_38358_19cf62f0195536d1c237c0edb55c088a.pdf |
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