One-pot synthesis and UV-Visible absorption studies of novel tricyclic heterocycle tethered Xanthene-1,8-diones

Cubic Cu5FeS4, obtained from a simple refluxing reaction of CuCl, FeCl3 and thiourea in ethylene glycol, showed an optical band gap of 1.25 eV. It can be used as a UV-visible radiation absorber in photovoltaic cells.

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Occlusion of Foreign Molecules in Primary Asphaltene Aggregates from Near-UV–Visible Absorption Studies

Energy & Fuels ◽

10.1021/acs.energyfuels.6b02826 ◽

2017 ◽

Vol 31 (2) ◽

pp. 1370-1375 ◽

Cited By ~ 14

Author(s):

Igor N. Evdokimov ◽

Aleksey A. Fesan ◽

Aleksandr P. Losev

Keyword(s):

Visible Absorption ◽

Absorption Studies ◽

Uv Visible

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Synthesis and Characterization of Fe3O4-CdX (X = S, Se) Core–Shell Nanoparticles

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2008.ic19 ◽

2008 ◽

Vol 8 (9) ◽

pp. 4826-4829

Author(s):

Daksha Patel ◽

Yongmin Chang ◽

Tae Jeong Kim ◽

Myung-Hwa Jung ◽

Gang Ho Lee

Keyword(s):

Quantum Confinement Effect ◽

Early Observation ◽

Core Shell ◽

Shell Nanoparticles ◽

One Pot ◽

Visible Absorption ◽

Uv Visible ◽

Dual Imaging ◽

Core Shell Nanoparticles

We report a facile one-pot synthesis of Fe3O4-CdX (X = S, Se) core–shell nanoparticles and characterized them with XRD, TEM, squid magnetometer, and UV-visible absorption and PL spectrometers. We observed that the core Fe3O4 nanoparticles showed a superparamagnetism at room temperature, whereas the shell CdX (X = S, Se) showed blue-shifts from the bulk materials in UV-visible absorption spectra, due to quantum confinement effect. These superparamagnetic and optical properties of the Fe3O4-CdX (X = S, Se) core–shell nanoparticles can be used for both MR and optical imagings. This dual imaging capability will increase a possibility of an early observation of disease such as cancer.

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Synthesis and Characterization of Polymer-Laced Cu-ZnO Nanoparticles

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1081.138 ◽

2014 ◽

Vol 1081 ◽

pp. 138-141

Author(s):

Xiao Liu ◽

Zheng Guan ◽

Hong Ling Liu ◽

Jun Hua Wu ◽

Xian Hong Wang ◽

...

Keyword(s):

Optical Properties ◽

Zno Nanoparticles ◽

Biomedical Applications ◽

X Ray Diffraction ◽

One Pot ◽

Visible Absorption ◽

Transmission Electron ◽

Structure Of Nanoparticles ◽

Uv Visible

The polymer-laced Cu-ZnO nanoparticles were successfully synthesized by one-pot non-aqueous nanoemulsion method with the use of PEO-PPO-PEO as the surfactant, C14H29CH(OH)CH2OH as the reducing agent, octyl ether as the solvent, Zn (acac)2 and Cu (acac)2 as precursors. The Morphology and structure of nanoparticles were analyzed by transmission electron microscopy (TEM) and X-ray diffraction (XRD). UV-visible absorption spectroscopy (UV-vis) and photoluminescence spectrometry (PL) were employed to valuate the optical properties of the nanoparticles. The Cu-ZnO nanoparticles with well defined optical properties are promising for optical, catalytic and biomedical applications.

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Capillary Electrophoresis, Mass Spectrometry, and UV-Visible Absorption Studies on Electrolyte-Induced Fractionation of Gold Nanoclusters

Analytical Chemistry ◽

10.1021/ac702135z ◽

2008 ◽

Vol 80 (7) ◽

pp. 2439-2446 ◽

Cited By ~ 38

Author(s):

Chung Keung Lo ◽

Man Chin Paau ◽

Dan Xiao ◽

Martin M. F. Choi

Keyword(s):

Mass Spectrometry ◽

Capillary Electrophoresis ◽

Gold Nanoclusters ◽

Visible Absorption ◽

Absorption Studies ◽

Uv Visible ◽

Capillary Electrophoresis Mass Spectrometry

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2,4-Bis(arylethynyl)-9-chloro-5,6,7,8-tetrahydroacridines: synthesis and photophysical properties

Beilstein Journal of Organic Chemistry ◽

10.3762/bjoc.17.115 ◽

2021 ◽

Vol 17 ◽

pp. 1629-1640

Author(s):

Najeh Tka ◽

Mohamed Adnene Hadj Ayed ◽

Mourad Ben Braiek ◽

Mahjoub Jabli ◽

Noureddine Chaaben ◽

...

Keyword(s):

Density Functional ◽

Photophysical Properties ◽

Chemical Properties ◽

Efficient Synthesis ◽

One Pot ◽

Visible Absorption ◽

Functional Theory ◽

Uv Visible ◽

Physical And Chemical ◽

And Chemical Properties

Acridine derivatives have attracted considerable interest in numerous areas owing to their attractive physical and chemical properties. Herein, starting from readily available anthranilic acid, an efficient synthesis of 2,4-bis(arylethynyl)-9-chloro-5,6,7,8-tetrahydroacridine derivatives was accomplished via a one-pot double Sonogashira cross-coupling method. The UV-visible absorption and emission properties of the synthesized molecules have been examined. Additionally, theoretical studies based on density functional theory (DFT/B3LYP/6-31G(d)) were carried out.

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Optical Properties and Structural Studies on Nd3+ Doped Borate Glasses Containing Heavy Metal Oxide

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.584.207 ◽

2012 ◽

Vol 584 ◽

pp. 207-211 ◽

Cited By ~ 1

Author(s):

Vijaya Chikkaveeraiah Veeranna Gowda ◽

K.R Sardar Pasha ◽

M. Sudhakar Reddy ◽

C. Narayana Reddy

Keyword(s):

Optical Band Gap ◽

Band Gap Energy ◽

X Ray Diffraction ◽

Visible Absorption ◽

X Ray ◽

Absorption Studies ◽

Amorphous Nature ◽

Uv Visible ◽

Quenching Method ◽

Bi2o3 Content

Abstract. Neodymium doped sodium bismuth borate (Na2O-Bi2O3-B2O3) glasses were prepared by melt quenching method. Amorphous nature of the glass is confirmed through the X-ray diffraction study. Density of the investigated glasses increases systematically with Bi2O3 concentration. Glass transition temperature decrease slightly with increase of Bi2O3 content and could be due to increase in the number of weaker Bi-O linkages by stronger Nd-O linkages. Fourier Transform - Infrared (FTIR) spectroscopy has been carried out. The IR spectra of the glasses reveal that the strong network consisting of diborate units and is unaffected by the variation of Nd3+ concentration. UV-Visible absorption studies have been performed on these glasses to examine the optical spectra and the optical band gap energy has been calculated. The intensity of the absorption band increases with the increase of Nd3+ concentration. This is due to the formation of non-bridging oxygens (NBO’s) in the structure.

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