Synthesis, growth and third-order nonlinear optical properties of quinolinium single crystal-PCLQI

Karthigha, S.; Kalainathan, S.; Hamada, Fumio; Yamada, Manabu; Kondo, Yoshihiko

doi:10.1039/c6ra05055g

Cited by 41 publications

(4 citation statements)

References 32 publications

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“…Table 1 shows its chemical shifts and assignments. The two observed peaks of the solvent clearly match well with the already reported value [19]. The spectrum showed that the 4MLBACH is coordinated with the chloride anion through the protonated NH + 3 group.…”

Section: H Nmr Spectral Analysissupporting

confidence: 89%

Spectral and optical characterization of the new semi-organic crystal: 4-methylbenzylammonium chloride hemihydrate, to establish protonation and the effect of resultant hydrogen bonding

Aarthi¹,

Raja²

2019

Bull Mater Sci

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4-Methylbenzylammonium chloride hemihydrate (4MLBACH) single crystals were obtained by slowly evaporating the solvent. The characterization of the title crystal was first carried out and reported in this article. The crystal system and space group of the title crystal are identified as monoclinic and C2/c, respectively. The lattice parameter values were also calculated. Using Fourier transform infrared spectroscopy the protonation of 4-methylbenzylamine by hydrochloric acid and the formation of the crystal 4MLBACH were confirmed. The transmission window of the grown crystal is between 261 and 1100 nm. The protonation of the amine group is confirmed by nuclear magnetic resonance spectral analysis. Z-Scan analysis was carried out to determine the nonlinear optical parameters. It reveals that the nonlinear susceptibility (χ 3) value is greater than some reported crystals. The title crystal exhibits saturable absorption and self-defocussing effects.

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Section: H Nmr Spectral Analysissupporting

confidence: 89%

Spectral and optical characterization of the new semi-organic crystal: 4-methylbenzylammonium chloride hemihydrate, to establish protonation and the effect of resultant hydrogen bonding

Aarthi¹,

Raja²

2019

Bull Mater Sci

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“…Most of them are synthesized from lepidine and quinaldine directly, for example, salts 1 – 6 (Scheme 4) and 8 – 13 (Scheme 5), whereas some of them require a different initial reagent, such as diphenylamine for the synthesis of salts 7 (Scheme 4) and 14 (Scheme 5). [30, 31, 33–48] …”

Section: Introduction To Cyanine Dyes Containing Quinoline Moietiesmentioning

confidence: 99%

Cyanine Dyes Containing Quinoline Moieties: History, Synthesis, Optical Properties, and Applications

Ilina

Henary

2020

Chemistry A European J

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Cyanine dyes carrying quinoline moieties are an important class of organic molecules that are of great interest for applications in many fields like medicine, pharmacology, and engineering. Despite their exceptional properties, such as stability, high molar extinction coefficients, and high pH‐sensitivity, this class of dyes has been less analyzed and reviewed in the last few decades. Therefore, this review article focuses on discussing the history of quinoline compounds, various synthetic routes to prepare quinolinium salts and symmetrical and asymmetrical mono‐, di‐, tri‐, penta‐ and heptamethine cyanine dyes, containing quinoline moieties, together with their optical properties and applications as photosensitizers in photodynamic therapy, probes in biomolecules for labeling of nucleic acids, as well as imaging agents.

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“…The solvent signals were observed at 3.386 ppm and 2.508 ppm. 31 The signals observed at 1.362 ppm and 1.155 ppm are due to methyl group protons, and the same for pure 2methyllactic acid was observed at 1.497 ppm. 32 Intermolecular interactions such as O-H…O and O-K…O result in a high electron density near CH 3 protons, creating a shielding effect.…”

Section: H Nuclear Magnetic Resonance (Nmr) Spectral Analysismentioning

confidence: 65%

“…Dimethyl sulfoxide (DMSO) was used as solvent, and the signal was observed at 39.93 ppm. 31 Table I The signals observed at 27.25 ppm and 27.15 ppm can be attributed to the methyl group carbon atoms (C3, C4, C7, and C8). The signal for the C6 and C2 carbon atoms was observed at 75.55 ppm, and the same for pure 2-methyllactic acid was observed at 72.33 ppm.…”

Section: Nuclear Magnetic Resonance (Nmr) Spectral Analysismentioning

confidence: 99%

Structural, Spectral, and Optical Characterization of Potassium bis(2-methyllactato)borate Hemihydrate Crystal

Gokila¹,

Aarthi²,

Raja³

2020

Journal of Elec Materi

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Potassium bis(2-methyllactato)borate hemihydrate (KMB) was grown by a solvent evaporation technique. Crystal structural analysis revealed that the potassium cation was pseudo-octahedrally coordinated by five O atoms from four bis(2-methyllactato)borate (MB) ligands and half-occupied water. The sharp peaks in the powder x-ray diffraction (PXRD) pattern confirmed the perfect crystalline nature of the KMB. Transparency was observed in the range from 215 nm to 1100 nm, and the bandgap of KMB was determined to be 2.15 eV. The molecular structure of KMB was established by interpreting the functional group vibrations through vibrational spectroscopy. The molecular structure was further confirmed by the nuclear magnetic resonance (NMR) spectral technique. The peak followed by valley nature observed is due to the self-focusing behavior of KMB. The minimum transmission near the focus in the open aperture curve is attributed to the reverse saturation absorption nature of KMB. The third-order susceptibility (v (3) ) of KMB is estimated to be 4.17694 9 10 À5 esu. These results suggest that KMB can be used in optical sensors as well as other photonic and optoelectronic applications.

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Synthesis, growth and third-order nonlinear optical properties of quinolinium single crystal-PCLQI

Abstract: N-Ethyl quinolinium chromophore crystal 2-[2-(4-chloro-phenyl)-vinyl]-1-ethyl-quinolinium iodide (PCLQI) has been successfully grown by the slow evaporation technique.

Cited by 41 publications

References 32 publications

Spectral and optical characterization of the new semi-organic crystal: 4-methylbenzylammonium chloride hemihydrate, to establish protonation and the effect of resultant hydrogen bonding

Spectral and optical characterization of the new semi-organic crystal: 4-methylbenzylammonium chloride hemihydrate, to establish protonation and the effect of resultant hydrogen bonding

Cyanine Dyes Containing Quinoline Moieties: History, Synthesis, Optical Properties, and Applications

Structural, Spectral, and Optical Characterization of Potassium bis(2-methyllactato)borate Hemihydrate Crystal

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