Temat: Correlation analysis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Synthesis and Hammett spectral correlation studies of some substituted cyanopyridine compounds
Autorzy:: Arulkumaran, R.
Manikandan, V.
Thirunarayanan, G.
Powiązania:: https://bibliotekanauki.pl/articles/1179260.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Hammett constants
IR and NMR spectra
Single and multi-correlation analysis
Substituted cyanopyridine
Opis:: About ten substituted cyanopyridine compounds have been synthesized and the purities of these pyridines were examined with their physical constants, analytical and spectroscopic data provided in the literature. They are characteristic infrared stretches and NMR chemical shifts were assigned and they are correlated with Hammett substituent constants using single and multi-linear regression analysis. From the results, the effect of substituents on the spectral data of cyanopyridine has been discussed.
Źródło:: World Scientific News; 2017, 80; 239-255
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Electrochemical reduction potential correlation of some insect antifeedant potent 2-phenothiazinyl chalcones
Autorzy:: Ranganathan, K.
Suresh, R.
Kamalakkannan, D.
Arulkumaran, R.
Sundararajan, R.
Sakthinathan, S. P.
Vijayakumar, S.
Thirumurthy, K.
Mayavel, P.
Thirunarayanan, G.
Powiązania:: https://bibliotekanauki.pl/articles/411842.pdf
Data publikacji:: 2012
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: elektrochemia
potencjał redukcji
analiza korelacji
2-phenothiazenyl
chalkony
2-Phenothiazenyl chalcones
electrochemistry
reduction potential
correlation analysis
insect antifeedant activities
Opis:: A series containing twelve substituted styryl 2-phenothiazenyl ketones have been synthesized. The electrochemical potentials of carbonyl and vinyl groups were measured. These potentials are correlated with Hammett substituent constants, F and R parameters. From the results of statistical analyses, the effects of substituent on the group reduction potentials have been discussed. The insect antifeedant activities of these chalcones have been studied using 4th instar larvae Achoea Janata L with castor leaf discs.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2012, 4; 66-75
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Synthesis and effects of substituent on (E)-styryl-3-methyl-2-thienyl chalcones
Autorzy:: Christuraj, P.
Geetha, C.
Vanangamudi, G.
Arulkumaran, R.
Manikandan, V.
Rajakumar, P. R.
Thirunarayanan, G.
Powiązania:: https://bibliotekanauki.pl/articles/1161056.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: (E)-3-(3-methylthiophen-2-yl)-1-phenylprop-2-en-1-ones
FT-IR & NMR spectra
Fly-ash:H3PO4 nanocatalyst
Hammett correlation analysis
Substituent effects
UV
solvent-free synthesis
Opis:: Series of eleven substituted of (E)-3-(3-methylthiophen-2-yl)-1-phenylprop-2-en-1-ones compounds by cross-aldol condensation reaction of 3-methylthiophene-2-carbaldehyde with various substituted acetaldehyde in the occurrence of Fly-Ash: H3PO4 catalyst. The effect of catalytic activity of this fly-ash:H3PO4 nanocatalyst was studied with the obtained yield of products under solvent-free conditions. The synthesized substituted (E)-3-(3-methylthiophen-2-yl)-1-phenylprop-2-en-1-one compounds was characterized by physical constants, UV, FT-IR, 1H & 13C-NMR spectral data. The infrared group frequencies of ʋ(cm-1) of COs-cis & s-trans, CHip and CHop, CH=CHop, >C=C
Źródło:: World Scientific News; 2018, 112; 55-73
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

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