نتایج جستجو برای: aniline

تعداد نتایج: 3903  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
mehdi mehrpooya ali vatani sayed mohammad ali moosavian

a type of novel hypercross-linked fiber adsorbent was obtained by sulfonation and cross-linking reaction of polypropylene fiber grafted styrene-divinylbenzene. the aim of the fiber sulfonation and cross-linking method was to prepare rigid three dimensional networks in the entire fiber and change the ion exchange capacity of fiber. the hypercross-linked fiber adsorbent possesses a principally di...

Azadbakht, Fatemeh, esrafili, Ali, Gholami, Mitra, kalantar, Roshanak, Shojaeyan, Samira, yegane Badi, Mojtaba,

Background: Aniline is a toxic compound characterized by high solubility in water (3.5 percent; 35000 mg/l) leading to increased presence risk of aniline in wastewater. The presence of this compound in the blood causes the formation of met hemoglobin and prevent oxygen uptake and plays a key role in chemical asphyxiation, moreover, it has been thought as a carcinogenic risk factor to humans...

Electrical sensitivity of a beryllium oxide nanotube (BeONT) was examined toward aniline (C6H5 NH2) molecule by using Density Functional Theory (DFT) calculations at the B3LYP/6-31G (d) level, and it was found that the adsorption energy (Ead) of aniline on the pristine nanotubes is about -19.06kcal/mol. However, when nanotube has been doped by P a...

Introduction and purpose: Aniline is a simple aromatic compound that has a wide application in various industries. This compound has mutagenic and carcinogenic properties. Given the solubility and high toxicity of aniline, the entrance of this compound into the surface and ground water can endanger human and environment and disturb aqueous species life . Regarding this, the&nbsp...

H. Ahmad Panahi H. Hoveidi H. Sid Kalal M. Taghiof N. Pakizevand S. Tavangari

An ion imprinted polymer (IIP) based on aniline-formaldehyde was synthesized and then modified with extra aniline as cross-linker in the presence and absence of Sr (II) as the template to produce ion imprinted poly(aniline-formaldehyde) (IIPAF) and non imprinted poly(aniline-formaldehyde) (NIPAF). The sorbent was characterized by Fourier Transform Infrared Spectroscopy and was used for solid ph...

2012
Vinola Z. Rodrigues Jiří Kameníček, B. Thimme Gowda Jozef Kožíšek

In the title compound, C(15)H(14)ClNO, the ortho- and meta-methyl substituents in the aniline ring are anti to the N-H bond. The dihedral angle between the benzoyl and aniline benzene rings is 95.0 (1)°. N-H⋯O hydrogen bonds and C-H⋯π inter-actions link the mol-ecules in the crystal structure.

2016
Eleonora Fava Anthony Millet Masaki Nakajima Sebastian Loescher Magnus Rueping

Visible-light-mediated photoredox-catalyzed aldimine-aniline and aldehyde-aniline couplings have been realized. The reductive single electron transfer (SET) umpolung of various carbonyl derivatives enabled the generation of intermediary ketyl and α-amino radical anions, which were utilized for the synthesis of unsymmetrically substituted 1,2-diamines and amino alcohols.

Journal: :Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 2001
M O Sousa T L Miranda E B Costa E R Bittar M M Santoro A F Figueiredo

Hydrolysis of D-valyl-L-leucyl-L-arginine p-nitroanilide (7.5-90.0 microM) by human tissue kallikrein (hK1) (4.58-5.27 nM) at pH 9.0 and 37 degrees C was studied in the absence and in the presence of increasing concentrations of 4-aminobenzamidine (96-576 microM), benzamidine (1.27-7.62 mM), 4-nitroaniline (16.5-66 microM) and aniline (20-50 mM). The kinetic parameters determined in the absence...

Journal: :Journal of colloid and interface science 2018
Bekir Satilmis Tamer Uyar

This research aims to investigate the possibility of electrospun fibers from Polymers of Intrinsic Microporosity (PIM-1) as an alternative adsorbent for aniline removal from both air and aqueous solution. Adsorption properties of electrospun PIM-1 fibers were compared with powder and film form of PIM-1. While electrospun PIM-1 nanofibrous mat can adsorb 871 mg g-1 aniline from air, it can also ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
David Coquière Aurélien de la Lande Sergio Martí Olivier Parisel Thierry Prangé Olivia Reinaud

A multipoint recognition system based on a calix[6]arene is described. The calixarene core is decorated on alternating aromatic subunits by 3 imidazole arms at the small rim and 3 aniline groups at the large rim. This substitution pattern projects the aniline nitrogens toward each other when Zn(II) binds at the Tris-imidazole site or when a proton binds at an aniline. The XRD structure of the m...

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