First Hyperpolarizability Dispersion of the Octupolar Molecule Crystal Violet

2012 ◽  
Author(s):  
J. Campo ◽  
A. Painelli ◽  
F. Terenziani ◽  
T. Van Regemorter ◽  
D. Beljonne ◽  
...  
Keyword(s):  
Crystal Violet ◽  
First Hyperpolarizability

First Hyperpolarizability Dispersion of the Octupolar Molecule Crystal Violet: Multiple Resonances and Vibrational and Solvation Effects

2010 ◽  
Vol 132 (46) ◽  
pp. 16467-16478 ◽  
Author(s):  
Jochen Campo ◽  
Anna Painelli ◽  
Francesca Terenziani ◽  
Tanguy Van Regemorter ◽  
David Beljonne ◽  
...  
Keyword(s):  
Crystal Violet ◽  
First Hyperpolarizability ◽  
Solvation Effects ◽  
Multiple Resonances

On-Demand Guest Release from MOF-5 Sealed with Nitrophenylacetic Acid Photocapping Groups

2019 ◽  
Author(s):  
Jingjing Yan ◽  
Rick Homan ◽  
Corrianna Boucher ◽  
Prem N. Basa ◽  
Katherine Fossum ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Crystal Violet ◽  
Dye Molecules ◽  
Phenyl Acetic Acid ◽  
On Demand ◽  
Crystal Violet Dye ◽  
Dye Diffusion ◽  
Triphenylacetic Acid

Recently, we demonstrated that triphenylacetic acid could be used to seal dye molecules within MOF-5, but guest release required digestion of the framework by treatment with acid. We prepared the sterically bulky photocapping group [bis-(3-nitro-benzyl)-amino]-(3-nitro-phenyl)-acetic acid (PC1) can prevent Crystal violet dye diffusion from inside MOF-5 until removed by photolysis.

On-Demand Guest Release from MOF-5 Sealed with Nitrophenylacetic Acid Photocapping Groups

2019 ◽  
Author(s):  
Jingjing Yan ◽  
Rick Homan ◽  
Corrianna Boucher ◽  
Prem N. Basa ◽  
Katherine Fossum ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Crystal Violet ◽  
Dye Molecules ◽  
Phenyl Acetic Acid ◽  
On Demand ◽  
Crystal Violet Dye ◽  
Dye Diffusion ◽  
Triphenylacetic Acid

Recently, we demonstrated that triphenylacetic acid could be used to seal dye molecules within MOF-5, but guest release required digestion of the framework by treatment with acid. We prepared the sterically bulky photocapping group [bis-(3-nitro-benzyl)-amino]-(3-nitro-phenyl)-acetic acid (PC1) can prevent Crystal violet dye diffusion from inside MOF-5 until removed by photolysis.

A KINETIC MODEL FOR THE CRYSTAL VIOLET MINERALIZATION IN WATER BY THE ELECTRO- FENTON PROCESS

2008 ◽  
Vol 7 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Ilie Siminiceanu ◽  
Carmen-Ionela Alexandru ◽  
Eric Brillas
Keyword(s):  
Kinetic Model ◽  
Crystal Violet ◽  
Fenton Process

Ab initio Hartree-Fock Investigation of π-Conjugated Compounds Presenting Large βv/βe Ratio: Merocyanines

1998 ◽  
Vol 63 (9) ◽  
pp. 1295-1308 ◽  
Author(s):  
Benoît Champagne ◽  
Thierry Legrand ◽  
Eric A. Perpete ◽  
Olivier Quinet ◽  
Jean-Marie André
Keyword(s):  
Ab Initio ◽  
First Hyperpolarizability ◽  
Conjugated Molecules ◽  
Hartree Fock ◽  
Experimental Discovery ◽  
Conjugated Compounds ◽  
Molecular Frame

CHF/6-311G* calculations of the first electronic and vibrational hyperpolarizabilities reveal that merocyanines present a substantial βv/βe ratio under their quinonoid nonpolar form. It originates from a large vibrational first hyperpolarizability whereas its electronic counterpart is small for this class of push-pull π-conjugated molecules. The transition from the quinonoid to the aromatic configuration is accompanied by an increase of βe and a decrease of the βv/βe ratio as well as by a ≈ 180° rotation in the plane of the molecule of βe and βv with respect to the molecular frame. Our results support the recent experimental discovery that antiparallel aggregation of aromatic and quinonoid forms of merocyanine is energetically favoured and that their first hyperpolarizabilities, which combine constructively, present both electronic and non purely electronic origins.

Understanding of the mechanism of crystal violet adsorption on modified halloysite: hydrophobicity, performance, and interaction

2021 ◽  
pp. 125656
Author(s):  
Kheira Belkassa ◽  
Mounir Khelifa ◽  
Isabelle Batonneau-Gener ◽  
Kheira Marouf-Khelifa ◽  
Amine Khelifa
Keyword(s):  
Crystal Violet

Using infrared luminescence to study crystal violet lactone in carbonless papers

2021 ◽  
Author(s):  
Silvia Stašková ◽  
Milena Reháková ◽  
Michal Oravec ◽  
Andrea Jabconová
Keyword(s):  
Crystal Violet ◽  
Infrared Luminescence

scholarly journals Green synthesis of magnetic α–Fe2O3 nanospheres using Bridelia retusa leaf extract for Fenton-like degradation of crystal violet dye

2021 ◽  
Author(s):  
Raja Selvaraj ◽  
Shraddha Pai ◽  
Gokulakrishnan Murugesan ◽  
Sadanand Pandey ◽  
Ruchi Bhole ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Green Synthesis ◽  
Crystal Violet ◽  
Leaf Extract ◽  
Bet Analysis ◽  
Crystal Violet Dye ◽  
Pros And Cons ◽  
Manufacturing Techniques ◽  
The Stability ◽  
Bridelia Retusa

AbstractThe reach of nanotechnology has permeated into a range of disciplines and systematically revolutionized many manufacturing techniques. Today, nanoparticles are fabricated using varied approaches, each with its pros and cons. Of them, the green synthesis approach has been very effective in terms of overall economics and the stability of nanoparticles. The current study investigates the use of the leaf extract of Bridelia retusa for the synthesis of iron oxide nanoparticles. Typical of these nanoparticles, no specific peak was discernible on employing UV–visible spectroscopy. The size, morphological features, and crystallinity of the nanoparticles were determined by employing scanning electron microscopy and electron diffraction spectroscopy. Almost uniformly sized at 38.58 nm, the nanoparticles were spherical, constituting elemental iron at 11.5% and elemental oxygen at 59%. Their relative composition confirmed the nanoparticles to be iron oxide. X-ray diffraction studies showed the particles to be hexagonal and rhombohedral, estimating the crystallite size at 24.27 nm. BET analysis put the pore volume at 0.1198 cm3/g and pore diameter at 7.92 nm. The unique feature of the nanoparticles was that the specific surface area was 75.19 m2/g, which is more than 12 times higher than commercial α-Fe2O3. The participation of a variety of biochemicals in the leaf extract towards the reduction-cum-stabilization was confirmed using FTIR analysis. The Fenton-like catalytic activity of the nanoparticles was put to test by attempting to degrade crystal violet dye, which was completely achieved in 270 min. The kinetics of the degradation was also modelled in the study.

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