Results 21 to 30 of about 28,275 (274)

Aplicação de espectroscopias raman e infravermelho na identificação e quantificação de plastificantes em filmes comerciais de PVC esticável Application of infrared and raman techniques in the identification and quantification of plasticizers in commercial films of PVSC

Química Nova, 2009
This paper reports the use of Raman and infrared techniques for the qualitative and quantitative analysis of plasticizers in polyvinylchloride (PVC) commercial films.
Michele Lemos de Souza, Paola Corio, Marcia L. A. Temperini, José Aparício Temperini   +3 more
doaj   +1 more source

Effects of vinyl substitutions on resonance Raman spectra of (bacterio)chlorophylls [PDF]

, 1994
Soret resonance and Qy preresonance Raman spectra are reported and compared for a series of (bacterio)chlorophylls. Chlorophyll a, 2-acetylchlorophyll a, bacteriochlorophyll a and 2-vinylbacteriochlorophyll a were studied in the non-protic solvent ...
Boldt, Choi, Choi, Cotton, Deisenhofer, Donohoe, Fateley, Fischer, Fujiwara, Fujiwara, Kühlbrandt, Lee, Lutz, Lutz, Lutz, Lutz, Lutz, Matthews, Mattioli, Robert, Robert, Smith, Stuck, Willems   +23 more
core   +1 more source

Determination of ripeness stages of Mazafati variety of date fruit by Raman spectroscopy [PDF]

Journal of Agricultural Machinery, 2016
Introduction: The economical yield of date fruits depends on many factors (Al-Shahib and Marshall, 2003). One of them is harvesting in optimum stage.
R Khodabakhshian, B Emadi
doaj   +1 more source

Raman spectroscopy mapping of changes in the organization and relative quantities of cell wall polymers in bast fiber cell walls of flax plants exposed to gravitropic stress

Frontiers in Plant Science, 2022
Flax is an important fiber crop that is subject to lodging. In order to gain more information about the potential role of the bast fiber cell wall in the return to the vertical position, 6-week-old flax plants were subjected to a long-term (6 week ...
Anne-Sophie Blervacq, Myriam Moreau, Anne Duputié, Isabelle De Waele, Ludovic Duponchel, Simon Hawkins   +5 more
doaj   +1 more source

Spectroscopic Characterization and DFT Calculations on 1H-benzimidazole-2-carboxylic acid monohydrate Molecule

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
After first determining the optimized geometry of the 1H-benzimidazole-2-carboxylic acid monohydrate (1HBCM) molecule using the B3LYP/6-311+ + G (d, p) basis set, we investigated the spectroscopic properties, electronic properties and optical band gap of
Songül Çifçi, Mustafa Kurt, Emine Babur Şaş   +2 more
doaj   +1 more source

Characterization of 3 fluoro-4-formylphenylboronic acid molecule with Density Functional Teory

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
The geometric structure of3-fluoro-4-fomylphenylboronic acid (3-4FPBA) molecule were investigated withDFT/B3LYP/6-311++G(d,p) basis set. Specra of the title molecule were observedby FT-IR and FT-Raman spectra.
Emine Babur Şaş, Mustafa Kurt
doaj   +1 more source

Near-infrared Fourier transform room-temperature photoluminescence of erbium complexes [PDF]

, 2003
A modified Fourier transform (FT) Raman bench spectrometer designed for the detection of weak light emission in the 800–1700 nm wavelength region has been used to demonstrate the advantages of FT spectroscopy for measuring near-infrared photoluminescence
A. Grisard, E. Lallier, J. Barbillat, L. Divay, P. Fias, P. Le Barny, R. Van Deun, Zervas M. N.   +7 more
core   +3 more sources

FT-IR, FT-Raman, UV–Visible, NMR, DFT and molecular docking investigation of 1-(phenyl (piperidin-1-yl) methyl) naphthalene-2-ol

Results in Chemistry, 2021
1-(Phenyl(piperidin-1-yl)methyl)naphthalene-2-ol was synthesized and characterized utilizing spectroscopic techniques (FT-IR, FT-Raman, UV–Visible, NMR, Mass and CHNS analysis).
P. Rajamani, V. Vijayakumar, N. Sundaraganesan, Mani Jeeva, Maria Susai Boobalan   +4 more
doaj   +1 more source

A combined theoretical and experimental study of electronic structure and optical properties of β-ZnMoO4 microcrystals [PDF]

, 2013
In this paper, a combined theoretical and experimental study on the electronic structure and photoluminescence (PL) properties of beta zinc molybdate ( -ZnMoO4) microcrystals synthesized by the hydrothermal method has been employed. These crystals were
Almeida, M.A.P., Andres, Juan, Batista, N.C., Beltran, Armando, Cavalcante, Laécio S., Dalmaschio, C.J., Longo, Elson, Moraes, E., Siu Li, Máximo, Varela, José A.   +9 more
core   +2 more sources

Comprehensive spectroscopic (FT-IR, FT-Raman, 1H and 13C NMR) identification and computational studies on 1-acetyl-1H-indole-2,3-dione

Open Chemistry, 2017
Fourier transform infrared (FT-IR) and FT-Raman spectra of 1-acetyl-1H-indole-2,3-dione (N-acetylisatin) were recorded in the solid phase and analyzed.
Almutairi Maha S., Muthu S., Prasana Johanan C., Chandralekha B., Al-Ghamdi Alwah R., Attia Mohamed I.   +5 more
doaj   +1 more source