Journals / Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2020 / Cilt: 13 - Sayı: 3

DFT Computational Studies on Some Cobaloximes

Pages
1299–1316
Publication Date
2020-12-31
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The order of interaction of cobaloximes with all biomolecules followed the sequence C1 > C2 > C3 > C4 > C5.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study carried out quantum chemical investigations on cobaloxime complexes: [Co(dpgH)2Cl(H2O)] (C1), [Co(dpgH)2(Pz)Cl] (C2), [Co(dpgH)2(Im)Cl] (C3), [Co(dpgH)2(py)Cl] (C4) and [Co(dpgH)2 (CH3)(py)Cl] (C5), where dpgH− is diphenyl glyoximate, Pz is pyrazine, Im is imidazole and py is pyridine.
📊
Key Findings & Data:The stable molecular geometries of these complexes were achieved using density functional theory (DFT) methods.
💡
Conclusion & Impact:The order of interaction of cobaloximes with all biomolecules followed the sequence C1 > C2 > C3 > C4 > C5.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Cobaloxime · DFT · Stabilization energy

Abstract

This study carried out quantum chemical investigations on cobaloxime complexes: [Co(dpgH)2Cl(H2O)] (C1), [Co(dpgH)2(Pz)Cl] (C2), [Co(dpgH)2(Im)Cl] (C3), [Co(dpgH)2(py)Cl] (C4) and [Co(dpgH)2 (CH3)(py)Cl] (C5), where dpgH− is diphenyl glyoximate, Pz is pyrazine, Im is imidazole and py is pyridine. The stable molecular geometries of these complexes were achieved using density functional theory (DFT) methods. The values of the geometrical parameters obtained from optimized cobaloxime complexes were compatible with experimental data. In order to predict the chemical reactivity of the complexes, their frontier molecular orbital (FMO) energies and their reactivity parameters based on DFT were calculated for optimized cobaloxime complexes. The interaction of the cobaloximes with different DNA bases and Watson–Crick base pairs (A–T and G–C) were explored on the basis of the different reactivity parameters of density functional reactivity theory (DFRT). The results revealed that cobaloximes studied generally acted as an electron-acceptor agent in their interaction with biomolecules. The order of interaction of cobaloximes with all biomolecules followed the sequence C1 > C2 > C3 > C4 > C5.

🔖

Cite This Article

ZÜLFİKAROĞLU, A. (2020). DFT Computational Studies on Some Cobaloximes. Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 13 - Sayı: 3, 1299–1316. https://ajindex.com/articles/233899

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (13)

  1. Adamo C, Barone V (1998) Exchange functionals with improved long-range behavior and adiabatic connection methods without adjustable parameters: The mPW and mPW1PW models. J. Chem. Phys. 108: 664-675.
  2. Bagaria P, Saha S, Murru S, Kavala V, Patel BK and Roy RK (2009) A comprehensive decomposition analysis of stabilization energy (CDASE) and its application in locating the rate-determining step of multi-step reactions. Phys. Chem. Chem. Phys.11:8306-8315.
  3. Becke AD (1992) Density-functional thermochemistry. II. The effect of the Perdew-Wang generalized-gradient correlation correction. J. Chem. Phys. 97:9173-9177. Becke AD, (1993) Density-functional thermochemistry. III. The role of exact Exchange. J. Chem. Phys. 98(7):5648-5652.
  4. Bhattacharjee A, Andreiadis ES (2013)
  5. Chavarot-Kerlidou M, Fontecave, M, Field MJ, Artero VA Computational Study of the Mechanism of Hydrogen Evolution by Cobalt (Diimine-Dioxime) Catalysts. Chem. - Eur. J. 19:15166−1517. Bhuyan M, Laskar M, Gupta BD (2008) Biphenyl-Bridged Dicobaloximes: Synthesis, NMR, CV, and X-Ray Study. Organometallics 27:594–601.
  6. Bourosh PN, Coropceanu EB, Ciloci AA, Clapco SF, Bologa OA, Bivol CM, Tiurina JP, Bulhac I (2013) New Co(III) Dioximates with Hexafluorophosphate Ion as Stimulators of the Proteolytic Activity of the Micromycete Fusarium gibbosum CNMN FD 12 Russ. J. Coord. Chem. 39(11):777–786.
  7. Chen J, Sit PHL (2018) Ab initio study of ligand dissociation/exchange and the hydrogen production process of the Co(dmgH)2(py)Cl cobaloxime in the acetonitrile-water solvent. Catalysis Today 314:179–186.
  8. Choudhary VK, Bhatt AK, Dash D, Sharma N (2019) DFT Calculations on Molecular Structures, HOMO–LUMO Study, Reactivity Descriptors and Spectral Analyses of Newly Synthesized Diorganotin(IV) 2-Chloridophenylacetohydroxamate Complexes. J. Comput. Chem. 40:2354–2363.
  9. Coropceanua EB, Rijaa AP, Lozana VI, Bologaa OA, Boldisora AA, Bulhaca II, Ch. Kravtsovb V, Bouroshb PN (2012) Synthesis and Crystal Structure of Co(III) Dioximates with the Complex Anion [SbF6]–. Russ. J. Coord. Chem. 38(8): 545–551.
  10. Coropceanua EB, Bulhaca I, Shtefyrtseb AA, Botnar’b VF, Melenchukb M, Kuligina E, Bouroshc PN (2017);
  11. Synthesis, Crystal Structure, and Biological Properties of the Complex [Co(DmgH)2(Seu)1.4(Se-Seu)0.5(Se2)0.1][BF4]. Russ. J. Coord. Chem. 43(3):164–171.
  12. Dennington R, Keith T, Millam J, GaussView, Version 5, Semichem Inc., Shawnee Mission KS, 2009.
  13. Ekennia AC, Onwudiwe DC, Olasunkanmi LO, Osowole AA, Ebenso EE (2015) Synthes