نتایج جستجو برای: tridentate schiff base ligands

تعداد نتایج: 362735  

Journal: :Dalton transactions 2010
Tamsyn M Ross Suzanne M Neville David S Innes David R Turner Boujemaa Moubaraki Keith S Murray

A series of iron(III) 1-D polymeric materials of the general formula [Fe(III)(Schiff-base)(L)](BPh(4)).n(CH(3)OH) (Schiff base = N,N'-ethylenebis(salicylaldimine) (H(2)salen), N,N'-o-phenylenebis(salicylaldimine) (H(2)salophen) and N,N'-ethylenebis(acety1acetone)-2,2'-imine (H(2) acen); L = bridging di-pyridyl or di-imidazole ligand, n = 0-4) and analogues therein, have been synthesised and str...

2013
Wan Nazihah Wan Ibrahim Mustaffa Shamsuddin

Palladium is arguably the most versatile and most widely applied catalytic metal in the field of fine chemicals due to its high selectivity and activity. Palladium catalyst offers an abundance of possibilities of carbon-carbon bond formation in organic synthesis. In this research, three different Schiff base ligands have been prepared by condensation reaction between appropriate aldehyde or ket...

2013
K. ARUNA CHRISTOPHER FERNANDES

New Oxovanadium(IV) and zirconium (IV) complexes were synthesized with tridentate ligand and characterized by elemental analysis, molar conductance measurements, molecular weight determinations, IR, electronic, and H NMR studies. The Oxovanadium(IV) complex is non-electrolyte whereas zirconium(IV) complex is 1:2 electrolytes in nature and may be formulated as[(VOL)2SO4] and [ZrL2]Cl2 respective...

2011
Hang-Ming Guo

The asymmetric unit of the title compound, [Sm(NO(3))(3)(C(15)H(15)NO(2))(2)(CH(3)OH)], contains two Schiff base 2-meth-oxy-6-[(4-methyl-phen-yl)iminiometh-yl]phenolate (HL) ligands, three nitrate ions and one methanol mol-ecule that binds to the nine-coordinate samarium(III) ion via its O atoms. The HL ligands chelate with a strong Sm-O(deprotonated phenolic) bond and a weak Sm-O(meth-oxy) con...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2002
Syunichi Oshima Naoki Hirayama Koji Kubono Hisao Kokusen Takaharu Honjo

Structural control of Schiff base ligands for selective extraction of copper(II) was investigated by changing pendant arms and the distance between two imine-N donor atoms in ligands. Di-Schiff base ligands, N,N'-bis(2-quinolylmethylidene)-1,2-diiminoethane (BQIE), N,N'-bis(2-pyridylmethylidene)-1,3-diimino-2,2-dimethylpropane (BPMP) and N,N'-bis(2-quinolylmethylidene)-1,3-diimino-2,2-dimethylp...

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 ...

2010
Md. Abdus Salam Md. Abu Affan Fasihuddin B. Ahmad M. Ibrahim Mohamed Tahir Edward R. T. Tiekink

The Sn(IV) atom in the title compound, [Sn(C(6)H(5))(C(14)H(19)N(4)S)Cl(2)], exists within a distorted octa-hedral geometry defined by the N,N',S-tridentate monodeprotonated Schiff base ligand, two mutually trans Cl atoms, and the ipso-C atom of the Sn-bound phenyl group; the latter is trans to the azo-N atom. The greatest distortion from the ideal geometry is found in the nominally trans angle...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم پایه 1392

در قسمت اول این تحقیق، نانوذرات fe3o4 به روش همرسوبی سنتز شد و به روش میکروامولسیون معکوس سیلیکا دار شد سپس کمپلکس بازشیف آهن(iii) را بر سطح بستر fe3o4@sio2 تثبیت گردید. این نانوکاتالیزور (fe3o4@sio2/fe(iii) schiff base) با تکنیک های ft-ir ,vsm ,tem ,xrd شناسایی شد. xrd نانوکاتالیزور فاز مکعبی خالص را نشان داد. ریخت شناسی کروی با اندازه ذره تقریباً nm60 با تصاویرtem تأیید شد. خاصیت پارامغناطیسی ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
hamid golchoubian omeleila nazari ghodsieh soleimani mojtaba mohseni

nickel(ii) complex of [nil2](clo4)2, where l is an unsymmetrical tridentate ligand of 2-(2-aminoethyl)imino-3-butanone oximehas been synthesized by a template condensation reaction. the complex was characterized on the basis of microanalytical, spectroscopic, and other physicochemical properties. x-ray diffraction study of the complex reveals nickel(ii) center in a distorted octahedral environm...

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