Synthetic, Mesomorphic, and DFT Investigations of New Nematogenic Polar Naphthyl Benzoate Ester Derivatives
Abstract
:1. Introduction
2. Experiment
Synthesis
3. Results and Discussion
3.1. Mesomorphic and Optical Behaviour
3.2. Comparison of the Investigated Derivatives (In/x) with Previously Prepared Series
3.3. Geometrical Structures and DFT Investigations
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Sample Availability
References
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Compound. | X | TCrystal–Nematic | ΔHCrystal–Nematic | TNematic–Iso | ΔHNematic–Iso | ΔSNematic–Iso/R | ΔT |
---|---|---|---|---|---|---|---|
I6/a | –OCH3 | 129.2 | 45.78 | 199.6 | 1.93 | 0.49 | 70.4 |
I6/b | –F | 114.1 | 39.35 | 154.1 | 1.19 | 0.34 | 40.0 |
I16/a | –OCH3 | 87.00 | 36.38 | 119.7 | 2.36 | 0.72 | 32.7 |
I16/c | –Cl | 107.1 | 36.96 | 158.4 | 2.30 | 0.64 | 51.3 |
Comp. | ZPE (Kcal/Mol) | Thermal Energy (Kcal/Mol) | Enthalpy (Kcal/Mol) | Gibbs Free Energy (Kcal/Mol) | Entropy (Cal Mol/k) |
---|---|---|---|---|---|
I6/a | 339.142 | 359.971 | 360.563 | 294.367 | 222.023 |
I6/b | 313.606 | 333.312 | 333.905 | 270.090 | 214.037 |
I16/a | 518.170 | 547.563 | 548.155 | 460.300 | 294.671 |
I16/c | 491.790 | 520.310 | 520.903 | 434.582 | 289.519 |
Comp. | Total Energy (Hartree) | EHOMO (ev) | EluMO (ev) | ∆E (ev) | Dipole Moment (Debye) | IE (ev) | EA (ev) | Polarizability Bohr3 |
---|---|---|---|---|---|---|---|---|
I6/a | −1570.995 | –5.632 | –2.439 | 3.193 | 1.7620 | 5.632 | 2.439 | 451.01 |
I6/b | −1555.767 | −5.774 | −2.582 | 3.192 | 3.3197 | 5.774 | 2.582 | 424.69 |
I16/a | −1963.817 | –5.627 | –2.439 | 3.188 | 1.6794 | 5.627 | 2.439 | 571.88 |
I16/c | −2308.947 | −5.791 | −2.614 | 3.177 | 3.7771 | 5.791 | 2.614 | 561.58 |
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Al-Zahrani, S.A.; Ahmed, H.A.; El-atawy, M.A.; Abu Al-Ola, K.A.; Omar, A.Z. Synthetic, Mesomorphic, and DFT Investigations of New Nematogenic Polar Naphthyl Benzoate Ester Derivatives. Materials 2021, 14, 2587. https://doi.org/10.3390/ma14102587
Al-Zahrani SA, Ahmed HA, El-atawy MA, Abu Al-Ola KA, Omar AZ. Synthetic, Mesomorphic, and DFT Investigations of New Nematogenic Polar Naphthyl Benzoate Ester Derivatives. Materials. 2021; 14(10):2587. https://doi.org/10.3390/ma14102587
Chicago/Turabian StyleAl-Zahrani, Salma A., Hoda A. Ahmed, Mohamed A. El-atawy, Khulood A. Abu Al-Ola, and Alaa Z. Omar. 2021. "Synthetic, Mesomorphic, and DFT Investigations of New Nematogenic Polar Naphthyl Benzoate Ester Derivatives" Materials 14, no. 10: 2587. https://doi.org/10.3390/ma14102587