Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "UV spectra" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 23
Tytuł:
Parametry fizyczne owoców wybranych odmian derenia jadalnego (cornus mas l.) oraz widma UV-VIS ich ekstraktów etanolowych
Physical parameters of fruits of selected cornelian cherry cultivars (cornus mas l.) and UV-VIS spectra of their ethanolic extracts
Autorzy:
Szczepaniak, Oskar
Kobus-Cisowska, Joanna
Zawadzka, Agnieszka
Szulc, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1195971.pdf
Data publikacji:
2020-12-30
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
dereń jadalny
Cornus mas L
gęstość nasypowa
analiza statystyczna
zmienność odmianowa
widma UV-VIS
cornelian cherry
bulk density
statistical analysis
varietal variability
UV-VIS spectra
Opis:
Dereń jadalny (Cornus mas L.) to roślina rosnąca na terenie Europy Środkowo-Wschodniej, znana z zastosowań w kuchni tradycyjnej i właściwości prozdrowotnych. Celem pracy była charakterystyka i analiza statystyczna zależności pomiędzy parametrami morfologicznymi owoców derenia jadalnego odmian rosnących w Polsce. Stwierdzono, że badane odmiany owoców derenia były zróżnicowane pod względem barwy skórki owoców oraz wymiarów. Nie znaleziono jednak statystycznie istotnych zależności pod względem gęstości nasypowej owoców a ich wymiarami, jak również statystycznych zależności pomiędzy absorbancją etanolowych ekstraktów a ich gęstością nasypową.
Cornelian Cherry is a plant growing in Central-East Europe, known for its use in traditional cuisine and health-promoting properties. The aim of the study was to characterize and statistically analyze the relationship between the morphological parameters of cornelian cherry fruit (Cornus mas L.) in cultivars growing in Poland. It was found that the tested cornelian cherry cultivars varied in terms of the color of the fruit skin as well as the dimensions. However, no statistically significant relationships were found in terms of the bulk density of fruits and their dimensions, as well as no statistical relationships between the absorbance of dogwood extracts and their bulk density.
Źródło:
Technika Rolnicza Ogrodnicza Leśna; 2020, 2; 35-38
1732-1719
2719-4221
Pojawia się w:
Technika Rolnicza Ogrodnicza Leśna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectral correlation analysis and evaluation of antimicrobial activities of some (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-ones
Autorzy:
Sathiyendiran, V.
Balaji, S.
Senbagam, R.
Vijayakumar, R.
Manikandan, V.
Rajarajan, M.
Muthuvel, I.
Markandan, R.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1031849.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
4-dimethylthiazol enones
Antimicrobial activities
Crossed-Aldol condensation
E-2
IR and NMR spectra
Spectral correlation analysis
Substituent effects
UV
Opis:
In this work, an attempt was made to synthesized (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-one by cross-aldol condensation reaction of 5′-acetyl-2,4-dimethylthiazole with various substituted Benz aldehyde in the presence base (sodium hydroxide). The synthesized (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-one derivative was characterized by physical constants, UV, FT-IR, 1H-NMR & 13C-NMR spectral data. All the observed spectral data of substituted (E)-1-(2,4-dimethylthiazol-5-yl)-3-phenylprop-2-en-1-one compounds have been correlated with Hammett substituent constants(σ, σ+, σI & σR) and F and R parameters using single and multi-linear regression analyses and studied for their anti-microbial activities and compared with the standard drugs (Ciprofloxacin). Some compound of the series exhibited promising anti-microbial activity compared to standard drugs (Ciprofloxacin).
Źródło:
World Scientific News; 2020, 141; 66-90
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of copper(II) complex of 3-methyl-2,6-diphenylpiperidin-4-one oxime
Autorzy:
Thirunarayanan, G.
Lakshmanan, K.
Powiązania:
https://bibliotekanauki.pl/articles/1076144.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Complexation
Copper chloride
Piperidine-4-one
Piperidine-4-oneoxime
UV and IR spectra
Opis:
A novel six membered heterocyclic oxime namely 3-methyl-2,6-diphenylpiperidin-4-oneoxime was prepared from the condensation of 3-methyl-2,6-diphenylpiperidin-4-one and hydroxylamine hydrochloride. The obtained oxime was characterized by their physical, analytical and spectroscopic data. This oxime was utilized as ligand for preparation of the copper complex. The oxime belongs to bidentate ligand nature. The copper complex of this oxime was prepared by the conventional heating of ethanolic solution of this oxime and copper chloride pentahydrate. The obtained copper complex was analyzed by their physical constants, analytical, pH measurements, UV and IR spectral data. These physicochemical analysis results confirmed, the structure of the complex was octahedral.
Źródło:
World Scientific News; 2019, 116; 102-114
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Hammett spectral QSAR analysis of some (E)-1-(4-methoxyphenyl)-3-phenylprop-2-en-1-ones
Autorzy:
Vijayakumar, S.
Manikandan, V.
Arulkumaran, R.
Christuraj, P.
Sundararajan, R.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1076503.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
(E)-1-(4-methoxyphenyl)-3-phenylprop-2-en-1-ones
IR
NMR spectra
QSAR study
UV
regression analysis
Opis:
About nine substituted (E)-1-(4-methoxyphenyl)-3-phenylprop-2-en-1-ones have been synthesized by solvent-free method. These enones were analyzed by spectral techniques. The characteristic spectral frequencies were correlated through Hammett equation with Hammett substituent constants, F and R parameters using single and multi-regression analysis method. From the statistical analysis results, the quantitative structure activity relationships have been discussed by means of effects of substituents on the spectral frequencies.
Źródło:
World Scientific News; 2019, 115; 52-67
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Tytuł:
Synthesis and spectral correlation studies of some (E)-N′-1-(substituted benzylidene) benzohydrazides
Autorzy:
Manikandan, V.
Balaji, S.
Senbagam, R.
Vijayakumar, R.
Rajarajan, M.
Vanangamudi, G.
Arulkumaran, R.
Sundararajan, R.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1162032.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
(E)-N’-1-(substituted benzylidene) benzohydrazides
IR and NMR spectra and Correlations
UV
Opis:
About ten substituted (E)-N’-1-(substituted benzylidene) benzohydrazides have been synthesized. They are characterized by their analytical, ultraviolet, infrared and NMR spectral data. The effects of substituent on these data have been studied using Hammett equation.
Źródło:
World Scientific News; 2018, 111; 26-39
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental and Theoretical Investigation to Study the Molecular Structure, Electronic Properties, UV–Vis Spectra of Coumarin 102
Autorzy:
Mohi, Ali T.
Abood, Tareq H.
Hadi, Hasan A.
Karim, Mahmood S.
Mutlik, Falah A-H.
Alwan, Tariq J.
Powiązania:
https://bibliotekanauki.pl/articles/1178533.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
DFT
Ionization potential
TDDFT
electron affinity
energy gap and UV spectra
Opis:
In this work, we study the structure, electronic properties and electronic spectra of Coumarin 102 (C102) dissolved in ethanol as an experimental-theoretical investigation. The various properties of the ground and excited electronic states of coumarins 102 using density functional theory (DFT) and time-dependent density functional theory (TDDFT) was calculated by the B3LYP density functional model with 6-31G(d,p) basis set by Gaussian 09 W program. Spectral characteristics of coumarin 102 have been probed into by methods of experimental UV-visible, and quantum chemistry. The UV spectrum was measured in Ethanol. The optimized structures, total energies, electronic states (HOMO- LUMO), energy gap, ionization potentials, electron affinities, chemical potential, global hardness, softness, global electrophilictity, dipole moment and electrostatic potential was calculated. were calculated. We find good agreement between experimental data of UV spectrum and TDDFT excitation energies.
Źródło:
World Scientific News; 2017, 70, 2; 216-229
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and spectral Hammett correlation analysis of some (E)-3-(5-bromothiophen-2-yl)-1-phenylprop-2-en-1-one compounds
Autorzy:
Christuraj, P.
Rajakumar, P. R.
Geetha, C.
Vanangamudi, G.
Arulkumran, R.
Manikandan, V.
Sundararajan, R.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1179576.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
(E)-3-(5-bromothiophen-2-yl)-1-phenylprop-2-en-1-ones
FT-IR and NMR spectra
Hammett correlation analysis
Substituent constants
Substituent effects
UV
Opis:
A series of substituted of (E)-3-(5-bromothiophen-2-yl)-1-phenylprop-2-en-1-one compounds by cross-aldol condensation reaction of 5-bromothiophene-2-carbaldehyde with various substituted acetaldehyde in the presence sodium hydroxide (base). The synthesized substituted (E)-3-(5-bromothiophen-2-yl)-1-phenylprop-2-en-1-one compounds was characterized by physical constants, UV, FT-IR, 1H & 13C-NMR spectral data. The group frequencies of infrared ʋ(cm-1) of CO s-cis and s-trans, CH in-plane and out of plane, CH=CH out of plane, >C=C< out of plane modes, NMR chemical shifts δ (ppm) of Hα, Hβ, CO, Cα and Cβ of these chalcones were correlated with Hammett substituent constants, F and R parameters using single and multi-regression analyses.
Źródło:
World Scientific News; 2017, 74; 15-35
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Podstawowe właściwości fizykochemiczne i chemiczne oraz możliwości wykorzystania samoczynnie koagulujących brunatnych wód poziomu mioceńskiego z regionu Wielkopolski
Basic physicochemical and chemical properties and possibility of usage of gradually coagulating brown ground waters from the Miocene aquifer of the Wielkopolska region
Autorzy:
Drobnik, M.
Latour, T.
Powiązania:
https://bibliotekanauki.pl/articles/2075509.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
wody brunatne
miocen
substancje humusowe
widma absorpcji UV-VIS
Miocene coloured water
humic substances
absorption spectra UV-VIS
Opis:
The Miocene aquifer of the Wielkopolska region contains humic acids. Eight water intakes containing gradually coagulating brown waters were examined. Some physicochemical and chemical properties (among others: reaction, colour, electrical conductivity, absorbance spectrum for wavelengths 254, 420, 465 and 665 nm, and contents of calcium, iron, sodium, hydrocarbonates chlorides and humic acids) of the water were determined in the well, and later after precipitation of dark brown sediment. Initial and differential 4th-degree absorption spectra UV-VIS of humic acids and their fractions have been determined as hymatomelanic and humic acids dissolved in water and contained in the sedimentation part after the passage of two weeks. The Miocene waters are cloassified as low-mineralized hydrocarbonate-chloride-sodium water containing humic acids in the amount ranging from 11.0 to 94.2 mg/dm3. Based on chemical composition of both precipitated sediments and water after precipitation, different ways of usage of the brown waters are suggested: for balneological purposes (e.g. recreational bath in spas) in cosmetic salons (preparation for skin nursing), and in agriculture, floriculture or domestic use.
Źródło:
Przegląd Geologiczny; 2016, 64, 12; 1034--1039
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, and spectral Hammett correlation analysis of some (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds
Autorzy:
Balaji, S.
Vijayakumar, R.
Manikandan, V.
Senbagam, R.
Rajarajan, M.
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1182925.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
(e)-5-chloro-2-hydroxyphenyl chalcones
synthesis
uv
ir and nmr spectra
hammett correlation analysis
substituent effect
Opis:
A series of substituted of (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds by cross-aldol condensation reaction of 5-chloro-2-hydroxy acetophenone with various substituted benzaldehyde in the presence sodium hydroxide (base). The synthesized substituted (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds was characterized by physical constants, UV, FT-IR, 1H & 13C-NMR spectral data. All the spectral data of substituted (E)-1-(5-chloro-2-hydroxyphenyl)-3-phenylprop-2-en-1-one compounds has been Hammett correlation with linear regression analyses.
Źródło:
World Scientific News; 2016, 49, 2; 144-161
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, effect of substituents and antimicrobial activities of some 4-bromophenyl chalcones
Autorzy:
Vijayakumar, S.
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1191238.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
(E)-1-(4-bromophenyl)-3-(substituted phenyl)-2-propen-1-ones
UV spectra
IR spectra
NMR spectra
Substituent effects
Antimicrobial activities
Opis:
Elven (E)-1-(4-bromophenyl)-3-(substituted phenyl)-2-propen-1-ones are formed using sodium hydroxide catalyzed Aldol condensation between 4-bromoacetophenone and substituted benzaldehyde. The production of these chalcone compounds are above 90%. These α, β unsaturated ketones were specified by their physical constants and spectral data (UV, IR, 1H and 13C-NMR). Hammett substituted constants (σ, σ+, σI & σR and F and R parameters have been used for correlating the spectral values of these α, β unsaturated ketones by using single and multi-linear regression analysis. The impacts of substituents on the spectral data have been known on statistical analysis. By using Bauer-Kirby method the anti-microbial activities of these (E)-1-(4-bromophenyl)-3-(substituted phenyl)-2-propen-1-ones compounds are estimated.
Źródło:
World Scientific News; 2016, 54; 132-152
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, Assessment of substituent effect and Antimicrobial activities of some substituted (E)-N-benzylidene-4H-1,2,4-triazol-4-amines
Autorzy:
Senbagam, R.
Rajarajan, M.
Vijayakumar, R.
Manikandan, V.
Balaji, S.
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1194005.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
IR and NMR spectra
QSAR study
UV
antimicrobial study
heterocyclic Schiff bases
synthesis
Opis:
Schiff H., Justus Liebigs Annalen der Chemie. 131(1) (1864) 118-9. [2] Lau K. Y., Mayr A., Cheung K. K., Inorgnic Chimica Acta. 285 (1999) 223-232. [3] Shawali A. S., Harb N. M. S., Badahdah K. O., Journal of Heterocyclic Chemistry. 22 (1985) 1397-1403. [4] Gupta K. C., Sutar A. K., Coordination Chemistry Review. 252 (2008) 1420-1450. [5] Yuan M., Zhao F., Zhang W., Wang Z. M., Gao S., Inorgnic Chemistry. 46 (2007) 11235-42. [6] Nakaic T., Meddu S., Kurahashi T., Japan Patent. 7389932 (1973); Chemical Abstracts. 81(1974) 65182. [7] Quraishi Harion M. A., Sharma K., Journal of Materials Chemistry and Physics. 78 (2002) 18-21. [8] Ramesh S., Rajeshwari S., Elctrochimica Acta. 49 (2004) 811-820. [9] Colter R. J., Matzner M., Ring terming poly, Part B-1, ‘Heterocyclic Ring’ Academic, New Youk, (1972). [10] Popp. F. D., Journal of Organic Chemistry. 26 (1961) 1566-1568. [11] Rao X., Huang X., He L., Song J., Song Z., Shang S., Combinatorial Chemistry & High Throughput Screening. 15 (2012) 840-844. [12] Hadjipavlou-litina D. J., Geronikaki A. A., Letters in Drug Design & Discovery. 15 (1996) 199-206. [13] Tiwary M., Naik S. N., Tiwari D. K., Mittal P. K., Yadav S., Journal of vector Brone Diseases. 44 (2007) 198-204. [14] Solak N., Rollas S., Arkivoc. (2006) 173-181. [15] Wadher S. J., Puranik M. P., Karande N. A., Yeole P. G., International Journal of Pharm Tech Research 1 (2009) 22-33. [16] Cates A. L., Rasheed S. M., Pharmaceutical Research 6 (1984) 271-273. [17] Sakthinathan S. P., Suresh R., Mala V., Sathiyamoorthi K., Kamalakkannan D., Ranganathan K., John Joseph S., Vanangamudi G., Thirunarayanan G., International Journal of Scientific Research and Knowledge, 1(11) (2013) 472. [18] Sakthinathan S. P., Suresh R., Mala V., Sathiyamoorthi K., Kamalakkannan D., Ranganathan K., Arulkumaran R., Vijayakumar S., Sundararajan R., Vanangamudi G., Thirunarayanan G., International Letters of Chemistry, Physics and Astronomy. 6 (2013) 77. [19] Suresh R., Kamalakkannan D., Ranganathan K., Arulkumaran R., Sundararajan R., Sakthinathan S. P., Vijayakumar S., Sathiyamoorthi K., Mala V., Vanangamudi G., Thirumurthy K., Mayavel P., Thirunarayanan G., Spectrochim. Acta, 101A (2013) 239. [20] Arulkumaran R., Vijayakumar S., Sakthinathan S.P., Kamalakkannan D., Ranganathan K., Suresh R., Sundararajan R., Vanangamudi G., Thirunarayanan G., Journal of Chilean Chemical Society. 2 (2013) 58. [21] Thirunarayanan G., Gopalakrishnan M., Vanangamudi G., Spectrochemica Acta 67A (2007)1106-1112 [22] Swain C. G., Lupton E. C., Journal of American Chemical Society. 90 (1968) 4328-4337. [23] Bauer A. W., Kirby W. M. M., Sherris J. C., Truck M., American Journal of Clinical Pathology. 45 (1966) 493-498.
Źródło:
World Scientific News; 2015, 8; 176-191
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, assessment of substituent effect and antimicrobial activities of some substituted (E)-Nbenzylidene- 5-bromopyridin-2-amines
Autorzy:
Senbagam, Rajamohan
Vanangamudi, Ganesan
Thirunarayanan, Ganesamoorthy
Powiązania:
https://bibliotekanauki.pl/articles/763969.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
E-imines
UV
IR and NMR spectra
Spectral QSAR study
Antimicrobial activities
Opis:
A series of substituted (E)-N-benzylidene-5-bromopyridin-2-amine compounds have been synthesized from 5-bromo-2-aminopyridine with different substituted benzaldehydes. The structure of the adducts was confirmed by their physical constants, UV, IR and NMR spectral data. The observed UV absorption maximum λmaxC=N(nm), IR frequencies νC=N(cm-1), The 1H and 13C NMR δ(ppm) chemical shifts values have been correlated with Hammett substituent constants and F and R parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effect of substituents on the spectral data has been studied. The antimicrobial activities of all synthesized imines have been studied using Bauer-Kirby method.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2015, 70, 2
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectral correlation analysis and evaluation of biological activities of some substituted hydrazones
Autorzy:
Vijayakumar, Renganathan
Senbagam, Rajamohan
Rajarajan, Murugan
Balaji, Selvaraj
Manikandan, Venkatesan
Vanangamudi, Ganesan
Thirunarayanan, Ganesamoorthy
Powiązania:
https://bibliotekanauki.pl/articles/764124.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Hydrazones
UV
IR & NMR spectra
Correlation analysis
Antimicrobial activities
Opis:
Some novel substituted hydrazone derivatives of amino guanidine have been synthesized with different substituted benzaldehydes by condensation method. The synthesized hydrazones were characterized by their physical constants, UV, IR and NMR spectra. The spectral data have been correlated with Hammett substituent constants and Swain–Lupton parameters. From the result of statistical analysis, the effects of substituents on the spectral data have been predicted. The antimicrobial activities of these synthesized hydrazone compounds have been screened by Bauer-Kirby method using human pathogenic bacteria and fungal species. The antimicrobial activities of all synthesized hydrazone compounds have shown significant activity.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2015, 70, 2
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, spectral studies and antimicrobial activities of some substituted (E)-1-benzylidene-2-(4-bromophenyl)hydrazines
Autorzy:
Rajarajan, M.
Senbagam, R.
Vijayakumar, R.
Manikandan, V.
Balaji, S.
Vanangamudi, G.
Thirunarayanan, G.
Powiązania:
https://bibliotekanauki.pl/articles/1194024.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antimicrobial study
Hammett equation
Hydrazone
IR spectra
NMR spectra
Synthesis
UV
Opis:
A series of nine number of (E)-1-benzylidene-2-(4-bromophenyl)hydrazine compounds have been synthesized by the condensation reaction of 4-bromo phenylhydrazine with varies m- and p- substituted benzaldehydes using acetic acid catalyst were refluxed for 4h with 20 mL of absolute ethanol. The yield of synthesized (E)-1-benzylidene-2-(4-bromophenyl)hydrazine compounds are more than 80%. The synthesized (E)-1-benzylidene-2-(4-bromophenyl)hydrazines have been characterized by UV, IR, 1H and 13C spectral data. These UV, IR and NMR spectral data have been correlated with varies Hammett substituted constant and Swain-Lupton F and R parameters using single and multi- regression analysis. From the results of statistical analysis, the effects of substituent have been studied. The antimicrobial activity of all the synthesized substituted (E)-1-benzylidene-2-(4-bromophenyl)hydrazines have been evaluated using Bayer-Kirby method.
Źródło:
World Scientific News; 2015, 9; 144-160
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies