Results 101 to 110 of about 7,561 (220)

C=O group versus C=C(CN)2 moiety from the viewpoint of electronic absorption and fluorescence spectroscopy

open access: yesВісник Харківського національного університету: Серія xімія
The effect of changing carbonyl group to methylidenepropanedinitrile moiety onto electronic absorption and fluorescence spectra was analyzed theoretically within DFT / TD-DFT scheme.
Andrey Doroshenko
doaj   +1 more source

Metallochlorophylls of magnesium, copper and zinc: evaluation of the influence of the first coordination sphere on their solvatochromism and aggregation properties [PDF]

open access: yes, 2009
In this study the role of different metal centers (magnesium, zinc and copper) on the enhancement of the hydrophilic character of metallochlorophylls, was evaluated.
BAPTISTA, Mauricio S.   +12 more
core   +1 more source

solvatochromic relationship

open access: yes, 2014
Citation: 'solvatochromic relationship' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.S05748 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Solvatochromic Polarity, Physicochemical Properties, and Spectral Analysis of New Triple NADES-Based on Urea–Glycerol

open access: yesMolecules
In the present study, ten type-V natural deep eutectic solvents (NADESs) were synthesized and comprehensively characterized, based on urea as a hydrogen-bond acceptor and three different groups of donors—glycerol, organic carboxylic acids, and ...
Sezan Ahmed   +5 more
doaj   +1 more source

Primer to Voltage Imaging With ANNINE Dyes and Two-Photon Microscopy

open access: yesFrontiers in Cellular Neuroscience, 2019
ANNINE-6 and ANNINE-6plus are voltage-sensitive dyes that when combined with two-photon microscopy are ideal for recording of neuronal voltages in vivo, in both bulk loaded tissue and the dendrites of single neurons. Here, we describe in detail but for a
Bernd Kuhn, Christopher J. Roome
doaj   +1 more source

Preferential Solvation of P-nitroaniline in Alcohol-dioxan Binary Solvent Mixture [PDF]

open access: yes, 2010
The Preferential solvation of p-nitroaniline (PNA) has been investigated by monitoring the intramolecular charge transfer band in different alcohol-dioxan binary solvent mixtures. The plots of observed spectroscopic transition energy vs.
Gorai, S
core  

2-Arylvinylpyrimidines versus 4-arylvinylpyrimidines: synthesis and comparison of the optical properties. [PDF]

open access: yes, 2013
International audienceCondensation of donor-substituted aldehydes on methylpyrimidine led to two series of fluorescent molecules depending on the position of the methyl group. Whereas highly emissive 4-arylvinylpyrimidine derivatives are well-known, this
Achelle, Sylvain   +1 more
core   +3 more sources

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

Chemical sensors based on nano-sized lanthanide-grafted periodic mesoporous organosilica hybrid materials

open access: yes, 2019
In this work we introduce the use of nano-sized (50-70 nm) lanthanide-grafted periodic mesoporous organosilicas for both metal ion sensing and solvent sensing.
Kaczmarek, Anna, Van Der Voort, Pascal
core   +1 more source

Highly Non-Linear Optical (NLO) organic crystals [PDF]

open access: yes
This research project involves the synthesis and characterization of organic materials having powerful nonlinear optical (NLO) properties and the growth of highly ordered crystals and monomolecular films of these materials.
Harris, J. Milton
core   +1 more source

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