In Silico vibrational spectroscopic investigation on antioxidant active Mannich base 1-[anilino (phenyl) methyl] pyrrolidine-2,5-dione.
The antioxidant active Mannich base 1-[anilino (phenyl) methyl] pyrrolidine-2,5-dione (APMPD) have been synthesized and its FT-IR and FT-Raman vibrational spectra were recorded within the region of 4000cm(-1), 50cm(-1) respectively. The molecular geometric parameters of APMPD have been computed using HF and DFT model theories. The energies of APMPD are calculated for all the eight possible conformers using B3LYP method at 6-311++G(d,p) basis set. From the computational results, the M1 conformer was identified as the most stable conformer of APMPD. The stable conformer was compared with experimental crystal geometry, which again fortifies the results of conformer analysis. The fundamental vibrations of the molecule are assigned according to the characteristic region and the literature report. The predicted highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy gap provide vivid idea on charge transfer behavior of APMPD. The molecular electrostatic potential (MEP) and Mulliken charge analysis indicate the feasible electrophilic and nucleophilic reactive sites on APMPD. The thermodynamic properties (heat capacity, entropy, and enthalpy) of the title compound at various temperatures are calculated in gas phase.
Department of Chemistry, St. Joseph's College, Tiruchirapalli, Tamil Nadu, India; Department of Chemistry, Roever Engineering College, Perambalur, Tamil Nadu, India. Electronic address: Jerry.Fedrick@gmail.com.
Maria susai
Ms
Boobalan
Department of Chemistry, St. Joseph's College, Tiruchirapalli, Tamil Nadu, India.
M
M
Amaladasan
Department of Chemistry, National Institute of Technology, Tiruchirapalli, Tamil Nadu, India.
D
D
Tamilvendan
Department of Physics, A.V.C. College, Mayiladuthurai, Tamil Nadu, India.
S
S
Ramalingam
Department of Chemistry, National Institute of Technology, Tiruchirapalli, Tamil Nadu, India.
G
G
Venkatesa Prabhu
D000814:Aniline Compounds / Q000737:chemistry*; D000975:Antioxidants / Q000737:chemistry*; D003198:Computer Simulation; D008352:Mannich Bases / Q000737:chemistry*; D008745:Methylation; D008958:Models, Molecular; D011759:Pyrrolidines / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013816:Thermodynamics
D000814:Aniline Compounds; D000975:Antioxidants; D008352:Mannich Bases; D011759:Pyrrolidines; C032519:pyrrolidine
1-[Anilino (phenyl) methyl] pyrrolidine-2,5-dione (APMPD); HOMO–LUMO; MEP; Mannich base; Mulliken charge analysis; Thermodynamic properties