نتایج جستجو برای: aniline

تعداد نتایج: 3903  

Journal: :Physical chemistry chemical physics : PCCP 2014
Matthieu Sala Oliver M Kirkby Stéphane Guérin Helen H Fielding

There have been a number of recent experimental investigations of the nonadiabatic relaxation dynamics of aniline following excitation to the first three singlet excited states, 1(1)ππ*, 1(1)π3s/πσ* and 2(1)ππ*. Motivated by differences between the interpretations of experimental observations, we have employed CASSCF and XMCQDPT2 calculations to explore the potential energy landscape and relaxa...

Journal: :The Journal of organic chemistry 2001
K C Gross P G Seybold Z Peralta-Inga J S Murray P Politzer

Historically, Hammett constants have been extremely effective in describing the influence of substituents on chemical reactivity and other physical and chemical properties, whereas variables derived from quantum chemical calculations have generally been less effective. Taking the experimental pK(a)s of substituted anilines as a representative physicochemical property, five ab initio quantum che...

Journal: :The Lancet 1894

ژورنال: سلامت و محیط زیست 2009
آیتی, بیتا, دلنواز, محمد, گنجی دوست, حسین,

Background and Objectives: Experiments were conducted to investigate the behavior of Moving Bed Biofilm Reactor (MBBR) as a novel aerobic process for treatment of aniline synthetic wastewater as a hard biodegradable compound is commonly used in number of industrial processes. The objective of this paper is evaluation of MBBR in different conditions for treatment of aniline and determination of ...

M. Yari S. Sedaghat

Metal—Polyaniline nanocomposites such as Platinum-Polyaniline nanocomposite is prepared by insitu oxidative polymerization of aniline and reduction of Pt+4 ions into Pt nanoparticles. Thepolymerization of aniline was carried out in the presence of 1(2PtCN6 [Potassium Hexa CyanoPlatinate (IV)] as oxidizing agent. During the reaction aniline monomers undergo oxidation andform polyaniline (PANT) w...

Journal: :Journal of Industrial & Engineering Chemistry 1916

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
mohammad hosseini baharak bahmani fatollah moztarzadeh mohammad rabiee

in this research, an enzyme modified electrode has been produced during the electropolymerization of aniline through incorporation of sulfite oxidase into a conducting polymer. then the bioelectrochemical response of resulted sulfite biosensor was investigated at different experimental conditions. study of  the stability of the resulted sulfite biosensor revealed that formation of a passive fil...

Journal: :Journal of the American Chemical Society 2012
Jeffrey S Arnold Hien M Nguyen

The rhodium-catalyzed regio- and enantioselective amination of racemic tertiary allylic trichloroacetimidates with a variety of aniline nucleophiles is a direct and efficient route to chiral α,α-disubstituted allylic N-arylamines. We describe the first dynamic kinetic asymmetric transformations of racemic tertiary allylic electrophiles with anilines utilizing a chiral diene-ligated rhodium cata...

Journal: :Organic & biomolecular chemistry 2007
Md Ehtesham Ul Hoque Nilay Kumar Dey Chan Kyung Kim Bon-Su Lee Hai Whang Lee

The reactions of ethyl Y-phenyl chloro (1) and chlorothio (2) phosphates with X-anilines in acetonitrile at 55.0 degrees C are studied kinetically and theoretically. Kinetic results yield the primary kinetic isotope effects (k(H)/k(D) = 1.07-1.80 and 1.06-1.27 for 1 and 2, respectively) with deuterated aniline (XC(6)H(4)ND(2)) nucleophiles, and the cross-interaction constants rho(XY) = -0.60 an...

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