نتایج جستجو برای: schiff base complexes

تعداد نتایج: 391812  

2011
N. Padma Priya S. Arunachalam V. Chinnusamy C. Jayabalakrishnan

An octahedral ruthenium(II) Schiff base complexes of the type [Ru(CO)(Py)L] (L = dianion of the Schiff bases derived from acetoacetanilide with o-phenylenediamine and salicylaldehyde/ohydroxyacetophenone/o-vanillin/2-hydroxy-1-naphthaldehyde) have been synthesized from the reactions of equimolar ratio of [Ru(CO)(PPh3)2(Py)] and Schiff bases in benzene. The formation of the Schiff base ligands a...

2013
RAGHAVENDRA RAO RAMAKRISHNA REDDY K. N. MAHENDRA

Copper (II), cobalt (II), nickel (II) and zinc (II) complexes of 5-chloroisatin Schiff base (L) (L= Schiff base derived from 5-chloroisatin and 2-methyl-4nitro aniline) were synthesized and characterized. The authenticity of the ligand and its metal complexes had been established by micro analysis, IR, NMR, LC/MS, UV-Vis and electrical conductance measurements. The ligand acts as a bidentate in...

2013
KHALIL KHALAF ABID

A new macrocyclic Schiff base complexes were prepared in the presence of lanthanide metal ion[La(III), Ce(III) and Gd(III)] by the reaction of 2,6 – diamino pyridine, benzoyl aceton and metal ion as template effect in the molar ratio of 2: 2: 1 respectively. The lanthanide metal complexes were characterized and investigated by using; 1 HNMR, FTIR, UV/Visible spectroscopy, Elemental analysis (C....

2014
Ramesh S. Yamgar Y. Nivid Satish Nalawade Mustapha Mandewale R. G. Atram Sudhir S. Sawant

The synthesis and antimicrobial activity of novel Zn(II) metal complexes derived from three novel heterocyclic Schiff base ligands 8-[(Z)-{[3-(N-methylamino)propyl]imino}methyl]-7-hydroxy-4-methyl-2H-chromen-2-one, 2-[(E)-{[4-(1H-1,2,4-triazol-1-ylmethyl)phenyl]imino}methyl]phenol, and (4S)-4-{4-[(E)-(2-hydroxybenzylidene)amino]benzyl}-1,3-oxazolidin-2-one have been described. These Schiff base...

2014
Nagesh Gunvanthrao Yernale Mruthyunjayaswamy Bennikallu Hire Mathada

A novel Schiff base ligand N-(4-phenylthiazol-2yl)-2-((2-thiaxo-1,2-dihydroquinolin-3-yl)methylene)hydrazinecarboxamide (L) obtained by the condensation of N-(4-phenylthiazol-2-yl)hydrazinecarboxamide with 2-thioxo-1,2-dihydroquinoline-3-carbaldehyde and its newly synthesized Cu(II), Co(II), Ni(II), and Zn(II) complexes have been characterized by elemental analysis and various spectral studies ...

2011
M. A. El-Nawawy R. S. Farag I. A. Sabbah

A new Sulfamethoxazole Schiff base (E)-4-(4-methoxybenzylideneamino)-N(5-methylis-oxazol-3-yl) benzenesulfonamide (C18H17N3O4S), and its copper complex were synthesized and the structures elucidated on the basis of Physiochemical methods. The studies indicate an octahedral structure for the complexes with the (C22H27N3O10SCu) formula. The IR spectra suggest that the ligand act as tridentate (fr...

Journal: :Inorganic chemistry 2005
Jian Gao Joseph H Reibenspies Ralph A Zingaro F Ross Woolley Arthur E Martell Abraham Clearfield

A family of novel chiral "calixsalen" Schiff base macrocycles R,R-H(3)L4, R,R-H(3)L5, containing three chiral diamino moieties were synthesized by an efficient self-assembly and characterized by (1)H and (13)C NMR, mass spectrometry, and X-ray diffraction. The systematic synthesis, structure, and coordination properties of the [2 + 2] and [3 + 3] Robson-type Schiff base macrocyclic mono-, di-, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده شیمی 1394

در فصل اول این پایان نامه، تهیه دی آریل کتون ها از آریل بورونیک اسیدهای متنوع با مشتقات مختلف بنزوئیل کلرید در حضور کاتالیزور ناهمگن pd-schiff-base@mwcnts انجام گردید. در فصل دوم، جفت شدن آلکن ها با آریل هالیدها در حضور سیستم کاتالیزوری ناهمگن pdiic22-sio2@fe3o4 و باز et3nدر حلال dmf تحت شرایط هوازی انجام گردید.

Journal: :Chemical communications 2015
Guangfu Li Xinyao Ren Guogang Shan Weilong Che Dongxia Zhu Likai Yan Zhongmin Su Martin R Bryce

Two new AIE-active dinuclear Schiff base Ir(III) complexes exhibit highly reversible piezochromic phosphorescence behaviour enabling the construction of a re-writable phosphorescence data recording device.

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