نتایج جستجو برای: n4 type schiff base extractants

تعداد نتایج: 1573712  

2014
R. B. Sumathi M. B. Halli

A new Schiff base and a new series of Co(II), Ni(II), Cu(II), Cd(II), and Hg(II) complexes were synthesized by the condensation of naphthofuran-2-carbohydrazide and diacetylmonoxime. Metal complexes of the Schiff base were prepared from their chloride salts of Co(II), Ni(II), Cu(II), Cd(II), and Hg(II) in ethanol. The ligand along with its metal complexes have been characterized on the basis of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده علوم 1393

چکیده موضوع تحقیق : سنتز و شناسایی هشت لیگاند بازشیف بزرگ حلقه و بزرگ غیر حلقه ای حاوی اتمهای دهنده ی مختلف و احیای تعدادی از آنها هدف : هدف از این پرو‍‍‍ژه سنتز و شناسایی هشت لیگاند بازشیف بزرگ حلقه و بزرگ غیر حلقه ای و احیای تعدادی از آنها می باشد . روش انجام کار : در این پروژه ابتدا دو لیگاند 4 دندانه o (hl1, hl2) n3 جدید سنتز و به وسیله روشهای اسپکتروسکوپی ir و 13c nmr و 1h nmr و میکر...

Journal: :journal of nanostructures 2015
h. khojasteh v. mirkhani m. moghadam s. tangestaninejad i. mohammadpoor-baltork

palladium is the best metal catalyst for suzuki cross coupling reaction for synthesize of unsymmetrical biaryl compounds. but its high cost limits its application in wide scale. using of nanoscale particles as active catalytic cites is a good approach for reducing needed noble metal. by loading precious nanoparticles on magnetic nanocores as a support, recycling and reusing of catalyst will be ...

Journal: :journal of physical & theoretical chemistry 2006
r. hakimelahi m.a. seyed sadjadi h. aghaie m. aghaie

neutral bidentate n-o type complexe of vo(ii) has been synthesized through condensation of dpenicillamine,(d-h2pen), with bis(acetylacetonate)- oxovanadium(iv),[vo(acac)2], at neutralmedium . the established schiff base(no type) complex was characterized on the basis of ir andmass spectroscopy techniques.besides,d-h2pen binding behavior to[vo(acac)2] has been studiedin thermodynamic viewpoint u...

Journal: :journal of physical & theoretical chemistry 2015
mahmood payehghadr farzaneh nourifard mehdi kalhor chiman shahoei

a new schiff base ligand, 2,2'-{pyridine-2,6-diylbis[nitrilo(e)methylylidene]}bis(4 bromophenol),has been synthesized by reaction of the 2,6-diamino pyridine with 5-bromo salicylaldehyde at ethanolunder refluxing. the structure of the synthesized compound resulted from the ir, 1hnmr, ms anduv spectroscopy and elemental analysis data. formation constant (kf) value of it’s complexes withcu2+, ni2...

Journal: :international journal of nano dimension 0
zainab tohidian department of chemistry, faculty of science, shahid bahonar university of kerman, kerman, iran. iran sheikhshoaie department of chemistry, faculty of science, shahid bahonar university of kerman, kerman, iran. moj khaleghi department of biology, faculty of science, shahid bahonar university of kerman, kerman, iran.

new two nano- sized schiff base complexes [m(l)], where l= 2, 2'-((1e, 1e')-(1, 2 phenylen bis (azanylylidene)) bis (methanylylidene)) bis (4-bromo phenolato) and m=cu or zn, (a, b complexes) were synthesized by ultrasonic irradiation. these complexes were characterized by elemental analysis, molar conductivity, ft-ir, fluorescence emission, 1h nmr, field emission scanning electron sp...

Journal: :journal of the iranian chemical research 0
natarajan raman research department of chemistry, vhnsn college, virudhunagar-626 001, india rajkumar mahalakshmi research department of chemistry, vhnsn college, virudhunagar-626 001, india abraham selvan department of chemistry, veltech hightech, engineering college, avadi, india muthusamy selvaganapathy research department of chemistry, vhnsn college, virudhunagar-626 001, india

the reaction of copper(ii) chloride and zinc(ii) chloride with n-(2-methylphenyl)-3-(1'-salicylaldehydene-2'-imine-ethane)-butanamide(h2l2a) or (mpsb), n-(2-methylphenyl)-3-(1'-(3'-methoxysalicylaldehydene-2'-imine-ethane)-butanamide (h2l2b) or (mpmsb) and n-(2-methylphenyl)-3-(1'-(2'-hydroxyacetylene-2'-imine-ethane)-butanamide (h2l2c) (mphb) leads to th...

2014
Aurora Reiss Mariana Carmen Chifiriuc Emilia Amzoiu Cezar Ionuţ Spînu

New [ML2(H2O)2] complexes, where M = Co(II), Ni(II), Cu(II), and Zn(II) while L corresponds to the Schiff base ligand, were synthesized by condensation of cefotaxime with salicylaldehyde in situ in the presence of divalent metal salts in ethanolic medium. The complexes were characterized by elemental analyses, conductance, and magnetic measurements, as well as by IR and UV-Vis spectroscopy. The...

A.A. Dehno Khalaji, D. Das, F. Gharib, J.S. Matalobos

In this paper, cubic nickel oxide nanoparticles were successfully prepared by solid-state thermal decomposition of nickel(II) macrocyclic Schiff-base complex at 450°C for 3 h without employing toxic solvent or surfactant and complicated equipment. nickel(II) macrocyclic Schiff-base complex was synthesized by the reaction of 1,2-bis(2-formyl-3-methoxyphenyl)propane, NiCl2•6H2O and 1,3-phenylened...

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