In
this study, ab initio Hartree-Fock (HF) and Density Functional Theory (DFT),
using Becke-3–Lee–Yang–Parr (B3LYP) hybrid density functional, calculations
have been performed to characterize the ground state geometrical energy, the
dipole moment (μ), polarizability (α), the hyperpolarizability (β) of
(2-benzyloxy-pyrimidin-5-yl) boronic acid molecule. The 1H and 13C
NMR chemical shifts were calculated by GIAO approach by using B3LYP/6-311+G
(2d, p) and HF/6-31G (d) level of theory. The potential energy surface of title
molecule has been investigated as a function dihedral angles (C3-B-O1-H1 and
C3-B-O2-H2). Also, using the calculated
the highest occupied molecular orbital energies (EHOMO) and the
lowest unoccupied molecular orbital energies (ELUMO), electronic
properties of the studied molecules such as energy gap ∆Eg (ELUMO-EHOMO),
chemical potential μ, electrophilic index ω, ionization potential IP, electron
affinity EA, electronegativity χ, molecular softness S, molecular hardness η
were obtained. The dipole moment title molecule are calculated at 1.20 Debye at
DFT/B3LYP/6-311++G (d, p) and 1.58 Debye at HF/6-311++G (d, p), respectively.
Structural parameters of title molecules compared with the experimental data in
the literature. All computational studies have been performed with the Gaussian
09W program.
(2-benzyloxy-pyrimidin-5-yl) boronic acid molecule Density functional theory Hyperpolarizability polarizability
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | July 25, 2019 |
Published in Issue | Year 2019Volume: 6 |