r molecules. These vibrations had been discovered in the distinctive regions in FT-IR spectra calculated working with the B3LYP/LANL2DZ amount of theory. Inside the theoretical study, O bandsF.E. t kkan, M. demir, G.B. Akbaba et al.Journal of SIRT3 custom synthesis Molecular Structure 1250 (2022)Fig. three. The Hirshfeld surface mapped for complexes 1 and two more than (a and c) dnorm inside the range -0,5655 to 1,2178 a.u., and -0,5612 to 1,2270 a.u., respectively. A view with the Hirshfeld surface mapped for complexes 1 and two more than (b and d) the shape-index.Fig. four. The percentages of your intermolecular interactions from obtained Hirshfeld surface αvβ1 list evaluation of complexes 1 and 2. Table four Some calculated chemical parameters of complexes 1 and 2 by the DFT technique. Unit Polarizability ( ) Total Power (ETotal ) LUMO +1 Power (ELUMO+1 ) LUMO Energy (ELUMO ) HOMO Power (EHOMO ) HOMO -1 Power (EHOMO-1 ) Energy Gap (EGAP ) Dipole Moment (D) Ionization Potential (IP) Electron Affinity (EA) Electronegativity ( ) Chemical Hardness ( ) Worldwide Softness ( ) Electrophilicity index ( ) EGAP = EHOMO LUMO = (IP EA)/-ComplexComplex two 9307.57 -48,124.90 -2.28 -2.29 -7.01 -7.04 four.72 0.00 7.01 two.29 4.65 2.36 0.21 four.58 = (IP + EA)/cm 9890.59 eV -50,287.29 eV -2.31 eV -2.35 eV -5.95 eV -6.69 eV 3.60 eV 0.00 eV 5.95 eV 2.35 eV four.15 eV 1.80 eV-1 0.28 eV four.78 IP = HOMO EA = LUMO = 1/2 = 2 /F.E. t kkan, M. demir, G.B. Akbaba et al.Journal of Molecular Structure 1250 (2022)Table five The docking benefits of complexes 1 and two on SARS-CoV-2 proteins.F.E. t kkan, M. demir, G.B. Akbaba et al.Journal of Molecular Structure 1250 (2022)of both complexes were observed around 2850 cm-1 . Reviewing previous studies, this huge chemical shift is attributed to anharmonic contributions. As a result of the anharmonic effects, the vibrations of hydrogen bond formation impacted by the H-bond are observed within a distinctive region [635]. The stretching vibrations related to the aromatic C stretching vibrations had been observed around 30 0 0 cm inside the FT-IR Spectra of complexes 1 and 2. The pointed out vibrations for FT-IR Spectra were computed around 320 010 0 cm-1 . The (C ) stretching vibration of 3-cyanopyridine is reported at 2230 cm-1 within the FT-IR spectra. Inside the FT-IR spectra, even though the experimentally observed and theoretically calculated values for complex 1 are 2237 cm-1 and 2272 cm-1 , respectively and for complex 2, these values are 2237 cm-1 and 2272 cm-1 , respectively. The fact that these vibrations occur inside the very same area with no chemical shifts also shows that the metal atom is not coordinated with all the cyano group. The FT-IR spectroscopy gives also important info regarding the carboxylate ion’s coordination sort [66]. This information is determined by the worth calculatedfrom the difference in between asymmetric and symmetric carboxylate vibrations. If this value is greater than the value of the sodium salt from the acid, it truly is suggested that the coordination type of your carboxylate group be monodentate. Asymmetric and symmetrical vibrations with the COO- moiety for complexes 1 and 2 had been observed at 1596 cm-1 and 1375 cm-1 and, respectively. The (COO- ) values for complexes 1 and two were calculated as 210 and 220 cm-1 , respectively. Theoretically asymmetric and symmetrical vibrations with the COO- moiety were calculated at 1514 cm-1 and 1376 cm-1 for complicated 1 and 1511 and 1367 cm-1 for complicated 2, respectively. When the synthesized complexes’ (COO- ) values are compared to the sodium salt of 2-chlorobenzoic acids, it is evident