Characterization of 1,5-dimethoxynaphthalene by vibrational spectroscopy (FT-IR and FT-Raman) and density functional theory calculations

Murugesan, K. Sakthi; Velraj, G.; Kalaichelvan, S.; Mariappan, G.

doi:10.1016/j.saa.2014.06.092

Cited by 6 publications

(2 citation statements)

References 36 publications

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“…Naphthalene ring and methoxy group stretching vibrations were assigned by comparing with the characterization spectroscopy data reported for 1,5‐dimethoxynaphthalene. [ 29 ] Thus the bands observed at 1598 and 1448 cm −1 were due to the naphthalene ring stretching vibrations and those at 1227 and 1017 cm −1 to the O—C naphthalene and O—C methyl stretching vibrations, respectively. On the other hand, it is should be mentioned that both synthetic strategies lead to quite similar IR spectra, which points again to a lot of chemical similarity between the two structures.…”

Section: Resultsmentioning

confidence: 99%

Phenyl Extended Naphthalene‐Based Covalent Triazine Frameworks as Versatile Metal‐Free Heterogeneous Photocatalysts

et al. 2021

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Two new covalent triazines frameworks (CTFs) containing phenyl extended naphthalene units (with and without methoxy groups in the naphthalene core) are prepared by thermal and microwave activation. Both procedures yield similar chemical structures combining triazine acceptor units with donor aromatic groups, but they generate some differences in the morphology, structural organization, CO2 adsorption capacity, and thermal and optical properties. Besides, the methoxy groups of the naphthalene core have also influence in some of these properties. The resulting phenyl extended naphthalene CTFs are efficiently utilized as metal‐free heterogeneous photocatalyst for the selective aerobic oxidation of sulfides and the dehydrogenative cross‐coupling reactions under visible‐light irradiation, showing a high chemical stability.

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Section: Resultsmentioning

confidence: 99%

Phenyl Extended Naphthalene‐Based Covalent Triazine Frameworks as Versatile Metal‐Free Heterogeneous Photocatalysts

et al. 2021

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“…This peak may be due to alkoxy groups, indicating that some oxidation could have occurred during processing. 37 The intensity of the peak 2848 cm −1 is 0.98 ± 0.21 and 2.21 ± 0.42 fresh cryosection, fixed cryosection, and paraffin-embedded sample, respectively, as seen in Figure 6(d). There is a statistical difference between the fixed cryosection and the fresh cryosection regarding the alkoxy group intensity.…”

Section: Resultsmentioning

confidence: 86%

A methodology to evaluate different histological preparations of soft tissues: Intervertebral disc tissues study

Azril

Huang

Hobley

et al. 2023

Journal of Applied Biomaterials & Functional Materials

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A tissue preparation method will inevitably alter the tissue content. This study aims to evaluate how different common sample preparation methods will affect the tissue morphology, biomechanical properties, and chemical composition of samples. The study focuses on intervertebral disc (IVD) tissue; however, it can be applied to other soft tissues. Raman spectroscopy synchronized with nanoindentation instrumentation was employed to investigate the compositional changes of IVD, specifically, nucleus pulposus (NP) and annulus fibrosus (AF), together with their biomechanical properties of IVD. These properties were examined through the following histological specimen types: fresh cryosection (control), fixed cryosection, and paraffin-embedded. The IVD tissue could be located using an optical microscope under three different preparation methods. Paraffin-embedded samples showed the most explicit details where the lamellae structure of AF could be identified. In terms of biomechanical properties, there was no significant difference between the fresh and fixed cryosection ( p > 0.05). In contrast, the fresh cryosection and paraffin-embedded samples showed a significant difference ( p < 0.05). It was also found that the tissue preparations affected the chemical content of the tissues and structure of the tissue, which are expected to contribute to biomechanical properties changes. Fresh cryosection and fixed cryosection samples are more promising to work with for biomechanical assessment in histological tissues. The findings fill essential gaps in the literature by providing valuable insight into the characteristics of IVD at the microscale. This study can also become a reference for a better approach to assessing the mechanical properties and chemical content of soft tissues at the microscale.

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Synthesis, crystal structure, spectroscopic characterization, docking simulation and density functional studies of 1-(3,4-dimethoxyphenyl) -3-(4-flurophenyl)-propan-1-one

Khamees

Jyothi

Khanum

et al. 2018

Journal of Molecular Structure

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Characterization of 1,5-dimethoxynaphthalene by vibrational spectroscopy (FT-IR and FT-Raman) and density functional theory calculations

Cited by 6 publications

References 36 publications

Phenyl Extended Naphthalene‐Based Covalent Triazine Frameworks as Versatile Metal‐Free Heterogeneous Photocatalysts

Phenyl Extended Naphthalene‐Based Covalent Triazine Frameworks as Versatile Metal‐Free Heterogeneous Photocatalysts

A methodology to evaluate different histological preparations of soft tissues: Intervertebral disc tissues study

Synthesis, crystal structure, spectroscopic characterization, docking simulation and density functional studies of 1-(3,4-dimethoxyphenyl) -3-(4-flurophenyl)-propan-1-one

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