Results 101 to 110 of about 12,878 (240)

The Influence of Temperature on C153 Steady-State Absorption and Fluorescence Kinetics in Hydrogen Bonding Solvents [PDF]

, 2012
In a recent paper (J Fluoresc (2011) 21:1547–1557) a temperature induced modulation of Coumarin 153 (C153) fluorescence lifetime and quantum yield for the probe dissolved in the polar, nonspecifically interacting 1-chloropropane was reported.
Jerzy Karolczak, Krzysztof Dobek
core   +1 more source

ULTRASONIC STUDIES OF ANTIPROTOZOAL DRUG IN PROTIC AND APROTIC SOLVENTS AT 308.15 K

Latin American Applied Research - An international journal, 2014
 Ultrasonic velocities and density of various concentrations (0.01 to 0.10M) of anti protozoal drog “Diloxanide Furoate” in methanol, dimethyl formamide and 1,4-dioxan have been measured at 308.15 K by using single crystal variable path ultrasonic interferometer operating at 2 MHz and pycnometer respectively.
S. BALUJA, A. KULSHRESTHA, M. BHATT
openaire   +2 more sources

Separation into polar and hydrogen-bonding factors of the effects of alcohols on the emission spectrum of 4-phenyl-1-N,N-dimethylaminobutane in THF [PDF]

, 2002
The effects of the additions of protic and aprotic polar solvents on the emission spectrum of 4-phenyl-1-N,N-dimethylaminobutane (PDAB) in THF have been studied under conditions of steady-state illumination.
Guobin, Xie, Nakamura, Mayuko, Sueishi, Yoshimi, Yamamoto, Shunzo   +3 more
core   +1 more source

Solvatochromism in Solvent Mixtures: A Practical Solution for a Complex Problem

Liquids
Many reactions are carried out in solvent mixtures, mainly because of practical reasons. For example, E2 eliminations are favored over SN2 substitutions in aqueous organic solvents because the bases are desolvated.
Omar A. El Seoud, Shirley Possidonio, Naved I. Malek   +2 more
doaj   +1 more source

Synthesis and characterization of novel functional hyperbranched polyamides from AB2 units: effect of extra functional groups

Designed Monomers and Polymers, 2020
Hyperbranched polymers (HPs), which in terms of structure may be compared to the branching structure of trees, are referred to as tree-like materials, but role of leave in these tree-like polymers is neglected and much attention has only been paid to ...
Hamidreza Rezania
doaj   +1 more source

Solvation and Ion-Pairing Effects of Choline Acetate Electrolyte in Protic and Aprotic Solvents Studied by NMR Titrations. [PDF]

Chemphyschem, 2022
Veroutis E, Merz S, Eichel RA, Granwehr J.   +3 more
europepmc   +1 more source

Solvent effects on solution enthalpies of adamantyl derivatives [PDF]

, 2010
Solution enthalpies of 1-bromoadamantane, 1-adamantanol, and 2-adamantanone in a large set of protic and aprotic solvents are reported at 298.15 K.
Elvas Leitao, Ruben, Martins, Filomena, Moreira, Luís, Nunes, Nélson   +3 more
core   +1 more source

Exploring the optoelectronic properties of a chromene-appended pyrimidone derivative for photovoltaic applications

Open Chemistry, 2019
In the present study, a chromene-appended pyrimidone derivative (PBA) has been synthesized in order to account for the relationship between chemical structure and charge transport properties.
Assiri Mohammed A.
doaj   +1 more source

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

, 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

Ultrasonic studies of resorcinol in protic and aprotic solvents at 40°

, 2002
Department of Chemistry, Saurashtra University, Rajkot-360 005, India E-mail : shkundal ad1 @sanchernet.in Fax: 91-0281-78512177633 Manuscript received 27 November 2000, accepted 31 May 2001 Various acoustical parameters like adiabatic compressibility (Ks) specific impedance (Z), intermolecular free path (Lf), Rao's molar sound function (R ...
openaire   +1 more source