Abstract
A new spirocompound containing thiourea group 1-((2,4-dioxo-1,5-dioxaspiro[5.5]undecan-3-ylidene)methyl)-3-phenylthiourea (DMP) was designed and obtained. The compound (DMP) was confirmed using the single X-ray diffraction, 1H NMR and 13C NMR, IR, Raman, MS and UV–Vis. The DFT calculations of molecular structure, infrared and Raman spectroscopy and electronic transition were performed using the two different levels of B3LYP/cc-pVDZ/ and B3LYP/6–311G(d, p). The theoretical results match with the experimental ones. The gap energy of HOMO and LUMO of DMP was 3.88 eV. The DMP is thermally stable up to 200 °C according to the data obtained from TG analysis. Finally, the Mulliken population analysis, Hirshfeld surfaces analysis, MEP, NLO and NBO of DMP were discussed.
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