Quantum chemical and molecular dynamics simulation studies on inhibition performances of some thiazole and thiadiazole derivatives against corrosion of iron

KAYA S., KAYA C., Guo L., KANDEMİRLİ F., TÜZÜN B., Ugurlu I., ...Daha Fazla

JOURNAL OF MOLECULAR LIQUIDS, cilt.219, ss.497-504, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 219
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.molliq.2016.03.042
  • Dergi Adı: JOURNAL OF MOLECULAR LIQUIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.497-504
  • Anahtar Kelimeler: Density functional theory, Molecular dynamics simulation, Corrosion, Thiazole, Thiadiazole, Iron, DENSITY-FUNCTIONAL THEORY, MILD-STEEL, HYDROCHLORIC-ACID, ELECTROPHILICITY INDEX, MAXIMUM HARDNESS, SOFT ACIDS, BASES, ELECTRONEGATIVITY, PRINCIPLE, COPPER
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In the present study, to predict corrosion inhibition performances of 2-amino-4-(4-chlorophenyl)-thiazole (Inh1), 2-amino-4-(4-bromophenyl)-thiazole (Inh2), 4-(2-aminothiazole-4-yl)-phenol (Inh3), 5,5'-(ethane-1,2-diyldisulfanediyl) bis-(1,3,4-thiadiazole-2-amine) (Inh4), 5,5'-(propane-1,3-diyldisulfanediyl) bis-(1,3,4-thiadiazole-2-amine) (Inh5) against corrosion of Fe metal, density functional theory (DFT) calculations and molecular dynamics simulations approach were performed on these mentioned molecules. Firstly, quantum chemical parameters such as the highest occupied molecular orbital energy (E-HOMO), lowest unoccupied molecular orbital energy (E-LUMO), the energy gap between E-LUMO, and E-HOMO (Delta E), chemical hardness, softness, electronegativity, proton affinity, global electrophilicity, global nucleophilicity and total energy (sum of electronic and zero-point energies) were calculated and discussed with the help of HF/SDD, HF/6-311G, HF/6-31 ++G, B3LYP/SDD, B3LYP/6-311G and B3LYP/6-31 ++G methods. Then, we calculated binding energies on Fe(110) surface of afore-mentioned thiazole and thiadiazole derivatives to investigate the strength of the interactions between metal surface and these molecules. The theoretical data obtained are in good agreement with the experimental inhibition efficiency results earlier reported. (C) 2016 Elsevier B.V. All rights reserved.