Temat: FT-IR spectra - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Infrared spectral analysis of waste pet samples
Autorzy:: Vijayakumar, S.
Rajakumar, P. R.
Powiązania:: https://bibliotekanauki.pl/articles/411833.pdf
Data publikacji:: 2012
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: butelki PET
ABS
FTIR
mieszanki kompozytowe
PET bottles
FT-IR spectra
blended composites
Opis:: There are fifteen waste pet bottles and a commercial grade ABS was collected from local supplier of Chidambaram town. The ABS was used to study the mechanical properties of PET blend composites. This study was performed by FT-IR spectroscopy. From the characteristics infra-red stretching bands the mechanical properties of samples were discussed.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2012, 4; 58-65
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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

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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

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Skocz do pozycji: 4.

Tytuł:: Isolation and Characterization of 4’,7-dihydroxy isoflavone from Indoneesiella echioides (L.) Nees plant leaves
Autorzy:: Elaiyaraja, A.
Chandramohan, G.
Powiązania:: https://bibliotekanauki.pl/articles/1192592.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Indoneesiella echioides (L) Nees
Phytochemical screening
Isolation
Characterization
FT-IR
GC-MS
NMR
MASS Spectra
Opis:: The present study was carried out to isolation and characterization of flavones compounds present in the Indoneesiella echioides (L) Nees leaves. Indoneesiella echioides (L) Nees is an important herb widely distributed in south India. This is commonly known as False Water willow. Indoneesiella echioides (L) Nees is a traditional Indian medicine; the whole plant is highly medicinal value such as the leaf juice of this plant is used to cure fever. Different pharmacological properties of Indoneesiella echioides have already been reported. The plant was extracted for various solvents in increasing order of polarity from using n-hexane, chloroform, ethyl acetate, acetone, ethanol, butanol and methanol. Thus, the present study was performed to investigate the preliminary phytochemical screening, isolation and characterization of flavones compounds present in the Indoneesiella echioides leaves using FT-IR, GC-MS, NMR and MASS spectral techniques.
Źródło:: World Scientific News; 2016, 55; 38-50
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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