Results 241 to 250 of about 835,988 (340)

Molecular structure, spectroscopic (FT-IR, FT-Raman, NMR), HOMO-LUMO, chemical reactivity, AIM, ELF, LOL and Molecular docking studies on 1-Benzyl-4-(N-Boc-amino)piperidine

Journal of Molecular Structure, 2020
In the present study, 1-Benzyl-4-(N-Boc-amino)piperidine was characterized by spectroscopic investigations employing FT-IR, FT-Raman, UV-Vis and NMR (13C, 1H) techniques.
S. Janani, Hemamalini Rajagopal, S. Muthu, S. Aayisha, M. Raja   +4 more
semanticscholar   +1 more source

Rotating samples in FT-RAMAN spectrometers

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 1997
It is customary to rotate samples in Raman spectroscopy to avoid absorption or sample heating. In FT-Raman experiments the rotation is always shown (typically 30-60 rpm) because higher speeds are thought to generate noise in the spectra. In this article we show that more rapid rotation is possible. A tablet containing maleic acid and one made up of sub-
A T, De Paepe, J M, Dyke, P J, Hendra, F W, Langkilde   +3 more
openaire   +2 more sources

DFT, molecular docking and experimental FT-IR, FT-Raman, NMR inquisitions on “4-chloro-N-(4,5-dihydro-1H-imidazol-2-yl)-6-methoxy-2-methylpyrimidin-5-amine”: Alpha-2-imidazoline receptor agonist antihypertensive agent

Journal of Molecular Structure, 2019
A molecule 4-chloro-N-(4,5-dihydro-1H-imidazol-2-yl)-6-methoxy-2-methylpyrimidin-5-amine plays a significant role in the treatment of hypertension and acts as a potential I 1 imidazoline receptor agonist.
S. Aayisha, T. Renuga Devi, S. Janani, S. Muthu, M. Raja, S. Sevvanthi   +5 more
semanticscholar   +1 more source

Pressure-tuning FT-Raman spectroscopy

SPIE Proceedings, 1994
Pressure-tuning dispersive Raman spectroscopy, using diamond anvil cells, has many of the common limitations of Raman spectroscopy such as low signal intensity, as well as photodecomposition and fluorescence of many samples. In the present investigations, the pressure-tuning experiment has been successfully coupled to an FT-Raman spectrometer using a ...
Steven M. Barnett, Stephane H. Brienne, Ross D. Markwell, Nancy T. Kawai, Ian S. Butler, Denis F. Gilson, Antonin Vlcek, Jr.   +6 more
openaire   +1 more source

Spectroscopic (FT-IR, FT-Raman, NMR and UV-Vis), ELF, LOL, NBO, and Fukui function investigations on (5-bromo-benzofuran-3-yl)-acetic acid hydrazide (5BBAH): Experimental and theoretical approach

Journal of Molecular Structure, 2019
Experimental and theoretical spectroscopic studies were performed for the (5-Bromo-benzofuran-3-yl)-acetic acid hydrazide (5BBAH) molecule. The research work was performed in two levels.
S. S. Khemalapure, V. S. Katti, C. S. Hiremath, Sudhir M. Hiremath, M. Basanagouda, Shivaraj B. Radder   +5 more
semanticscholar   +1 more source

Analysis of milk by FT-Raman spectroscopy

Talanta, 2015
Fat, protein, carbohydrates and dry matter were quantified in commercial bovine milk samples, with the relative standard errors of prediction (RSEP) in the 3.4-6.1% range, using the partial least squares (PLS) method based on Raman spectra of liquid milk samples.
Sylwester, Mazurek, Roman, Szostak, Tomasz, Czaja, Andrzej, Zachwieja   +3 more
openaire   +2 more sources

Multi-spectroscopic (FT-IR, FT-Raman, 1H NMR and 13C NMR) investigations on syringaldehyde

, 2020
Spectroscopic properties of syringaldehyde have been investigated by FT-IR, FT-Raman and NMR analytical techniques with help of high level quantum chemical calculations. The vibration spectra of syringaldehyde were recorded in the mid IR region.
A. Kumar, S. Selvaraj, K. Jayaprakash, S. Gunasekaran, S. Kumaresan, J. Devanathan, K. Selvam, L. Ramadass, M. Mani, P. Rajkumar   +9 more
semanticscholar   +1 more source

FT-Raman Spectroscopy: Development and Justification

Applied Spectroscopy, 1986
There has long been a widespread interest in the feasibility of Fourier transform Raman spectroscopy. The well-deserved reputation of FT-IR has generated hopes for similar benefits in Raman spectroscopy, and the complementarity of IR and Raman spectroscopy has made the use of a single instrument for both spectroscopies both convenient and cost ...
T. Hirschfeld, B. Chase
openaire   +1 more source

FT-IR, FT-Raman, UV–Vis, NMR and structural studies of carquejyl acetate, a distinctive component of the essential oil from Baccharis trimera (less.) DC. (Asteraceae)

Journal of Molecular Structure, 2019
Carquejyl acetate (CA), the main component of the essential oil from Baccharis trimera was isolated and characterized by using Fourier Transform infrared (FT-IR) and Raman (FT-Raman), Ultraviolet–Visible (UV–Visible), Electronic Circular Dichroism (ECD),
M. Minteguiaga, E. Dellacassa, Maximiliano A. Iramain, C. Catalán, S. Brandán   +4 more
semanticscholar   +1 more source

FT Raman investigations of fast moving samples

AIP Conference Proceedings, 1998
Fast moving samples were investigated by conventional and FT Raman spectroscopy. Using near infrared excitation of a Nd-YAG laser instead of the visible excitation by gas-lasers the problem of fluorescence was overcome. The double modulation due to sample movement occurring in FT Raman spectroscopy was avoided by application of the step scan technique.
Salzer, Reiner, Roland, Ulf, Born, René
openaire   +1 more source