IR and NMR spectral studies of some 2-hydroxy-1-naphthyl chalcones: Assessment of substituent effects

Vanangamudi, Ganesan; Subramanian, M.; Jayanthi, Palanivel; Arulkumaran, R.; Kamalakkannan, D.; Thirunarayanan, Ganesamoorthy

doi:10.1016/j.arabjc.2011.07.019

Cited by 18 publications

(28 citation statements)

References 23 publications

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“…When these data are produced satisfactory correlations in multi-regression analysis with σ I, σ R and Swain-Lupton's constants [33]. The generated multi-regression analysis equations are given in (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) …”

Section: Volume 53mentioning

confidence: 99%

“…Table 5. These data are correlated with Hammett substituent constants, F and R parameters using single and multi-linear regression analysis [13][14][15][16]. The results of single parameter correlation analysis of 13 C NMR spectral chemical shifts(ppm) of synthesised sydnone chalcones are tabulated in Table 6.…”

Section: H Nmr Spectral Studymentioning

confidence: 99%

“…The general structure of (E)-4-(N-(4-cinnamoylphenyl)sulfamoyl)-3-(p-tolyl)-1,2,3-oxadiazol-3-ium-5-olates are shown in Fig.1. [13][14][15][16][20][21][22][23][24][25][26][27][28][29][30][31]of these data with Hammett substituent constants and Swain-Lupton's [33] parameters. In this correlation, the Hammett equation was taken in the form as(1).…”

Section: -Olatesmentioning

confidence: 99%

“…The Chemical shifts (δ, ppm) of vinyl protons, NH and methyl protons of synthesised sydnone chalcones were presented in Table 3. These chemical shifts(δ, ppm) have been correlated with Hammett substituent constants, F and R parameters using single and multi-linear regression analysis [13][14][15][16][20][21][22][23][24][25][26][27][28][29][30][31][32]. In this correlation the Hammett equation was taken in the form as (20) δ = ρσ + δ o (20) where δ o is the frequency for the parent member of the series.…”

Section: H Nmr Spectral Studymentioning

confidence: 99%

“…Spectroscopic data were useful for prediction of geometry and ground state equilibration of organic compounds [13]. From vibrational spectra the s-cis and s-trans conformations of carbonyl compounds were predicted [14]. The chemical shifts of NMR spectra were useful for prediction of geometry of compounds such as E or Z along with coupling constants [15].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Spectral LFER Studies on Some Sydnone Chalcones

Thirunarayanan

Vanangamudi²,

Sathiyendiran³

2015

ILCPA

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ABSTRACT.A series containing ten (E)-4-(N-(4-cinnamoylphenyl)sulfamoyl)-3-(p-tolyl)-1,2,3-oxadiazol-3-ium-5-olates were prepared and examined their purities by literature method. The infrared and NMR spectral data were assigned and correlated with Hammett substituent constants and Swain-Lupton's constants using single and multi-regression analysis. From the results of statistical analyses the effects of substituents on the spectral data have been discussed.

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Section: Volume 53mentioning

confidence: 99%

Section: H Nmr Spectral Studymentioning

confidence: 99%

Section: -Olatesmentioning

confidence: 99%

Section: H Nmr Spectral Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spectral LFER Studies on Some Sydnone Chalcones

Thirunarayanan

Vanangamudi²,

Sathiyendiran³

2015

ILCPA

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An experimental and DFT investigations of fused ring anthracenyl chalcones with effective modification in acceptor moiety: Nonlinear optical and optical limiting response

Zainuri

Abdullah

Bakar

et al. 2023

Int J of Quantum Chemistry

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The significance of the anthracene moiety on nonlinear optical (NLO) characteristics is thoroughly examined. The presence of strong electron donor and acceptor groups, large and prolonged conjugation transfer axis, amplifies the push–pull action and increases NLO responses. The values of χ3 obtained for AC derivatives are considerably larger (10−3 esu), indicating that they accurately reflect NLO reactions. According to the optical limiting (OL) investigation, AC has a strong limiting behavior with action beginning at 1.6 KW/cm2. The relationship between transmittance and intensity has demonstrated their potential use in OL applications. Nonlinear optical studies show that all conjugated anthracene chalcones are potential materials for OL devices.

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The anodic reactivity of 4,4′-dimethoxychalcone: a synthetic and mechanistic investigation

et al. 2016

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The anodic oxidation of the 4,4 0 -dimethoxychalcone (DMC) was investigated by different electrochemical methods at a platinum working electrode and in acetonitrile as a solvent. The DMC exhibited a single irreversible anodic peak around 1.6 V versus Ag/AgCl. On the time scale of cyclic voltammetry experiments, the highly reactive radical cation issued from the first electron transfer underwent a second order rate-limiting reaction. The potential imposed electrolyses of DMC led to the formation of a semi-conducting oligomer with 40 % yield. Using different physico-chemicals methods, the structural study confirmed the formation of an o-phenylenevinylene oligomer. The values of the corresponding optical and electrochemical band gaps were calculated to be 3.15 and 2.86 eV, respectively. Finally, a mechanism for the DMC electro-oligomerization was proposed on the basis of the obtained results.

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IR and NMR spectral studies of some 2-hydroxy-1-naphthyl chalcones: Assessment of substituent effects

Cited by 18 publications

References 23 publications

Spectral LFER Studies on Some Sydnone Chalcones

Spectral LFER Studies on Some Sydnone Chalcones

An experimental and DFT investigations of fused ring anthracenyl chalcones with effective modification in acceptor moiety: Nonlinear optical and optical limiting response

The anodic reactivity of 4,4′-dimethoxychalcone: a synthetic and mechanistic investigation

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