نتایج جستجو برای: nxoy type schiff base ligands

تعداد نتایج: 1652129  

Journal: :ACS Catalysis 2021

Metal-containing Schiff base/sulfoxides were developed as chiral ligands for Pd(II)-catalyzed asymmetric intramolecular allylic C–H amination reactions. The use of metal-containing base allows tuning the selectivity and reactivity Pd(II)-catalyst, whereby a base-Cu(II)/sulfoxide ligand in combination with Pd(OAc)2 showed best performance. Both internal terminal alkenes applicable, products obta...

2015

The reactions of ruthenium trichloride with Schiff bases derived from sulpha drugs in 1:2 molar ratio leads to the formation of a new series of coordination compounds of type [Ru(L) 2 (H 2 O)Cl]. The Schiff bases used here are o-Vanillin sulphanilamide (oVSaH), o-Vanillin sulphamerazine (oVSmrzH), salicylaldehyde sulphanilamide (SdSaH), salicylaldehyde sulphamerazine (SdSmrzH), 2-hydroxy-1-naph...

Journal: :Crystals 2021

The reaction of organic molecules mediated by a metal center (template synthesis) can result in final connectivity that may differ from the one obtained absence metal. condensation carbonyl fragments with primary amines form C=N iminic bonds, so-called Schiff bases, which act as ligands for templating means lone pair on nitrogen atom. This review focuses template methods between compound (mainl...

2016
Hugo Schiff

Metal chelates of Schiff base prepared by combining salicylaldehyde and amino acids could be effectively used in understanding the mechanism of transamination reaction. They can act as biomimetic species. The current article focused on the syntheses, characterization, complexation behaviour and antimicrobial studies of some novel Schiff bases formed from salicylaldehyde with 3-amino benzoic aci...

Journal: :Dalton transactions 2013
Feng Gao Yu-Yang Li Cai-Ming Liu Yi-Zhi Li Jing-Lin Zuo

A new triple-decker dinuclear sandwich-type dysprosium complex based on both the phthalocyanine ligand and the tetradentate Schiff base ligand was synthesized, which is of interest for synthetic chemistry and also shows single-molecule magnetic behaviour.

2013
ASHOK PANDEY

A series of coordination compounds have been prepared with tridentate Schiff base ligands, 2 ethyl-[(hydroxy propyl)]3, 1 (4H) quinazoline4-semicarbazone [EHPQS) and 2-ethyl-[(hydroxy propyl)]3, 1 (4H) quinazoline4-thiosemicarbozone [EHPQT]. The obtained complexes were characterized by molar mass, elemental analysis, infrared spectra, electronic spectra, magnetic susceptibility molar conductanc...

2007
Guolin Zhang Lihua Ye Yanyan Zhang Wenlong Liu

The title compound, [Cd(H(2)O)(6)][Cu(C(15)H(17)N(2)O(4))](2)·2H(2)O, has a chiral structure. Copper has a square-planar coordination with two N and two O atoms of the quadridentate chiral Schiff base ligand. The Cd(2+) ion is coordinated by six aqua ligands with a slightly distorted octa-hedral configuration. Ions are linked by O-H⋯O hydrogen bonds, and the [Cd(H(2)O)(6)](2+) cations and [CuL]...

2008
Fei Liu

The title dinuclear complex, [EuNi(C(19)H(20)N(2)O(4))(NO(3))(3)(CH(3)OH)(2)]·2CH(3)OH, is isostructural with its Ni(II)/Pr(III) analogue. The Ni(II) ion is coordinated by two O atoms and two N atoms of a Schiff base ligand and by two methanol mol-ecules, forming a slightly distorted octa-hedral geometry. The Eu(III) ion is coordinated by six O atoms from three chelating nitrate ligands and fou...

2010
Xiao-Hui Ji Jiu-Fu Lu

The title compound, [Cu(C(13)H(16)NO(2))(2)], is a mononuclear copper(II) complex derived from the Schiff base ligand 2-(cyclo-pentyl-imino-meth-yl)-5-meth-oxy-phenol and copper acetate. The Cu(II) atom is four-coordinated by the phenolate O atoms and imine N atoms from two Schiff base ligands, in a highly distorted square-planar geometry. The O- and N-donor atoms are mutually trans and the dih...

ژورنال: Medical Laboratory Journal 2017
Chalabian, Firoozeh, Goudarziafshar , Hamid, Katouzian, Fatemeh, Rashki , Somayeh , Tamoradi, Taiebeh,

ABSTRACT         Background and objectives: Synthesis and characterization of several metal complexes (metal ions: Co2+, Ti4+ and Ce3+) of macroacyclic Schiff base ligand have been reported. The Schiff base ligand is prepared from the condensation reaction of 1, 4-di-(4-fluoro-2-aminophenoxy) butane with salicylaldehyde in ethanol. In addition, antibacterial ...

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