Investigations of FT-IR, FT-Raman, FT-NMR spectra and quantum chemical computations of Esculetin molecule.

Spectrochim Acta A Mol Biomol Spectrosc

Department of Physics, Ahi Evran University, 40040 Kirsehir, Turkey.

Published: April 2013

In this work, we report a combined experimental and theoretical study on molecular structure, vibrational spectra and electronic properties of Esculetin (ESC). The FT-IR, FT-Raman and FT-NMR spectra have been recorded and analyzed. The molecular geometry, harmonic vibrational frequencies, chemical shifts, HOMO, LUMO energies and molecular electrostatic potential map of ESC have been calculated by using Density Functional Theory (B3LYP) with 6-311G++(d,p), cc-pVDZ, cc-pVQZ and cc-pVTZ basis sets.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.saa.2012.12.043DOI Listing

Publication Analysis

Top Keywords

ft-ir ft-raman
8
ft-raman ft-nmr
8
ft-nmr spectra
8
investigations ft-ir
4
spectra quantum
4
quantum chemical
4
chemical computations
4
computations esculetin
4
esculetin molecule
4
molecule work
4

Similar Publications

The aim of this study was to verify the biomodifying action of 6.5% grape seed extract solutions, with different pH, when applied on dentin collagen. Dentin bars (1.

View Article and Find Full Text PDF

β-Cyclodextrin and cucurbit[7]uril as protective encapsulation agents of the CO-releasing molecule [CpMo(CO)Me].

Dalton Trans

December 2024

CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.

Article Synopsis
  • - The study investigates the carbon monoxide (CO) releasing ability of the complex [CpMo(CO)Me] (1), demonstrating that sodium dithionite promotes CO release, especially when exposed to UV light, establishing it as a photochemically activated CO-releasing molecule.
  • - Different methods, including liquid-liquid interfacial precipitation and mechanochemical ball-milling, were used to create inclusion complexes of 1 with β-cyclodextrin (βCD) and cucurbit[7]uril (CB7), resulting in confirmed inclusion compounds through various analytical techniques.
  • - The inclusion of 1 with βCD or CB7 slowed down CO release rates compared to the non-included form, with β
View Article and Find Full Text PDF

We discussed and summarized the latest data from the global literature on the action of polyphenolic antioxidants and their metal complexes. The review also includes a summary of the outcomes of theoretical computations and our many years of experimental experience. We employed various methods, including spectroscopy (FT-IR, FT-Raman, NMR, UV/Vis), X-ray diffraction, thermal analysis, quantum calculations, and biological assays (DPPH, ABTS, FRAP, cytotoxicity, and genotoxicity tests).

View Article and Find Full Text PDF

Ambipolar conjugated ladder polymers by room-temperature Knoevenagel polymerization.

Chem Sci

July 2024

Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University Xiangtan 411105 P. R. China

Two soluble conjugated ladder polymers (cLPs), decorated with multiple electron-poor species (, cyano groups, fused pentagons, and N-heterocyclic rings), have been synthesized from the newly developed tetraketo-functionalized double aza[5]helicene building blocks using a single-step Knoevenagel polycondensation strategy. This facile approach features mild conditions (, room temperature) and high efficiency, allowing us to quickly access a nonalternant ladder-like conjugated system with the formation of multicyano substituents in the backbone. Analysis by H NMR, FT-Raman, and FT-IR spectra confirms the successful synthesis of the resulting cLPs.

View Article and Find Full Text PDF

The objective of this investigation is to learn more about the structural, electrical, spectroscopic, and physiochemical characteristics of biologically active cyano-4'-hydroxybiphenyl (CHBP). The title molecule's optimized conformational analysis was computed using the DFT/B3LYP/6-311++G (d, p) level of theory. The observed wavenumbers were compared with theoretical FT-IR and FT-Raman spectra.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!