Temat: hammett equation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Infrared and ¹³C NMR spectral studies of some aryl hydrazides: Assessment of substituent effects
Autorzy:: Thirunarayanan, G.
Sekar, G. K.
Lakshmi Narayanan, R.
Powiązania:: https://bibliotekanauki.pl/articles/412577.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: substituted aryl benzohydrazide
IR spectra
NMR spectra
hammett equation
substituent constants
correlation analysis
Opis:: A series of some aryl hydrazides have been synthesized. These hydrazides purities were analyzed by physical constants and spectral data. The assigned spectral group frequencies were correlated with Hammett substituent constants and Swain-Lupton parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effect of substituents on the spectral group frequencies has been discussed.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 13, 1; 88-94
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Application of Hammett equation on IR and NMR spectral data of (5-bromothiophen-2-yl) (3-(4-methoxyphenyl)bicyclo[2.2.1]hept-5-en-2-yl)methanones
Autorzy:: Thirunarayanan, G.
Powiązania:: https://bibliotekanauki.pl/articles/1182868.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: (5-bromothiophen-2-yl)(3-substituted phenyl)bicyclo[2.2.1]hept-5-en-2-yl)methanones
ir and nmr spectra
hammett equation
hammett substituent constants
regression analysis
electronic effects
Opis:: More than 60% yield of the titled compounds, (5-bromothiophen-2-yl)(3-substituted phenyl) bicyclo[2.2.1]hept-5-en-2-yl)methanones were prepared and examined their purities by literature method. The characteristic infrared spectral frequencies (cm-1) and NMR chemical shifts (ppm) of these ketones were assigned. These spectral data were applied to Hammett equation with Hammett substituent constants for prediction of effects substituent using single and multi-regression analysis. From the results of statistical analysis, the electronic effect of substituents on the spectral data has been studied.
Źródło:: World Scientific News; 2016, 53, 3; 138-156
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja