Results 21 to 30 of about 7,506 (232)

Solvatochromism of N-aryl-phenylacetamides

open access: yesZaštita Materijala, 2016
Amide derivates are biologically active compounds and they are widely used in all spheres of life. Therefore, it is very important to know their physical-chemical properties.
Suzana Lj. Apostolov   +2 more
doaj   +1 more source

N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole: Synthesis and Luminescent Solvatochromism

open access: yesChemistry Proceedings, 2021
N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole (BTDNMe2) was synthesized from the commercially available 2,1,3-benzothiadiazole (BTD) by nitration in a sulfonitric mixture, followed by a reduction of the nitro group and subsequent methylation with ...
Valentina Ferraro   +2 more
doaj   +1 more source

Molecular First Hyperpolarizabilities of a New Class of Asymmetric Squaraine Dyes [PDF]

open access: yes, 1994
The molecular first hyperpolarizabilities (β) of a series of asymmetric squaraine dyes have been measured by electric-field-induced second harmonic generation; the dyes have negative β-values whose magnitudes are comparable to 4-N,N-dimethylamino-4 ...
Chen, Chin-Ti   +2 more
core   +1 more source

Solvatochromism of 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones

open access: yesZaštita Materijala, 2018
Eight 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones were synthesized by reaction of benzoylacetone and arendiazonium salt, followed by condensation with cyanoacetamide. Absorption spectra of all azo pyridone dyes were recorded in twelve
Gordana S. Ušćumlić   +1 more
doaj   +1 more source

Effect of Counterion on the Solvatochromic Properties of Heteroleptic Chelate Copper(II) Complexes

open access: yesJournal of Spectroscopy, 2013
A series of heteroleptic chelate copper(II) complexes of the type [Cu(L)(acac)]X where acac = acetylacetonate; L = N,N′-1,6-bis(2-fluorophenyl)-2,5-diazahexane; X=CIO4-, BPh4-, PF6-, and BF4- have been prepared and characterized by elemental analyses, IR
Hamid Golchoubian, Hakimeh Fazilati
doaj   +1 more source

Designer molecular probes for phosphonium ionic liquids [PDF]

open access: yes, 2010
Investigations into the extent of structuring present in phosphonium based ionic liquids (ILs) have been carried out using photochromic molecular probes.
Armand   +46 more
core   +1 more source

Solvatochromism Study on the Copper(II) Complexes Containing 3–Substituted Derivatives of Acetylacetonate Ligands [PDF]

open access: yesIranica Journal of Energy and Environment, 2012
Solvatochromic properties of a series of bis(3–substituted derivatives of acetylacetone) copper(II) (X-acacH , X = Cl, H. CH3) complexes were studied. All the complexes demonstrated negative solvatochromism.
Hamid Golchoubian, Fariba Khoshsiar
doaj  

Studying of physicochemical properties of newly synthesized uracil derivatives

open access: yesZaštita Materijala, 2015
Uracil derivatives are potentially biologically active compounds, so the investigation of their physical and chemical properties is very important for their further application.
Jadranka A. Tot   +1 more
doaj   +1 more source

Synthesis and Properties of Dipyridylcyclopentenes [PDF]

open access: yes, 2005
A short and general route to the substituted dipyridylcyclopentenes was explored and several new compounds belonging to this new group of diarylethenes were synthesized.
Ben L. Feringa   +6 more
core   +2 more sources

The nature of the silicaphilic fluorescence of PDMPO [PDF]

open access: yes, 2015
PDMPO (2-(4-pyridyl)-5-((4-(2-dimethylaminoethylaminocarbamoyl)methoxy)phenyl)oxazole), has unique silica specific fluorescence and is used in biology to understand biosilicification.
Amat   +44 more
core   +1 more source

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