نتایج جستجو برای: co ii ion

تعداد نتایج: 1076501  

2007
Fengli Yu Qibao Wang Xiaoyan Li

The title mol-ecule, [Co(C(6)H(5))(CN)(C(3)H(9)P)(3)], lies on a crystallographic mirror plane with the Co(II) ion coordinated in a distorted square-pyramidal environment with one of the P atoms in the apical position. In the basal plane, the phenyl substituent is trans to the cyanide group with a C-Co-C angle which is significantly distorted from linearity.

2012
Qinqin Zhou Bo-Han Zhu

In the title compound, [CoCl(3)(C(6)H(13)N(2))], the tetra-hedrally coordinated Co(II) ion has Co-Cl distances ranging from 2.2220 (11) to 2.2449 (9) Å and a Co-N distance of 2.056 (2) Å. In the crystal, N-H⋯Cl hydrogen bonds link mol-ecules into chains in [010]. Weak C-H⋯Cl inter-actions stabilize further the crystal packing.

Journal: :international journal of nano dimension 0
o. moradi department of chemistry, shahre-ghods branch, islamic azad university,tehran, iran. k. zare department of chemistry, science and research branch, islamic azad university,tehran,iran. m. yari faculty of chemistry, islamshahr branch, islamic azad university, islamshahr, iran.

the interaction between some heavy metal ions such as of pb(ii), cd(ii) and cu(ii) ions from aqueous solution adsorbed by single walled carbon nanotube (swcnts) and carboxylate group functionalized single walled carbon nanotube (swcnt-cooh) surfaces were studied by atomic absorption spectroscopy. the effect of contact time, ph, initial concentration of ion, ionic strength and temperature on the...

Journal: :Angewandte Chemie 2021

Mechanically chelating ligands have untapped potential for the engineering of metal ion properties. Here we demonstrate this principle in context CoII-based single-ion magnets. Using multi-frequency EPR, susceptibility and magnetization measurements found that these complexes show some highest zero field splittings reported five-coordinate CoII to date. The predictable coordination behaviour in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1389

در بخش اول از این کار، دو کمپلکس تک هسته ای از کبالت (ii)و مشتقات 10،1 – فنانترولین با فرمول های (1) [co(dmphen)cl2]و [co(ph2dmphen)cl2]2.chcl3 (2) (dmphen= 2،9-دی متیل 10،1 – فنانترولین (نئوکوپروئین) و ph2dmphen= 2،9-دی متیل – 7،4دی فنیل- 10،1 – فنانترولین ( باتو نئوکوپروئین)) تهیه شد تا اثر ازدحام فضایی، نوع لیگاند و حالت اکسایش یون فلز مرکزی بر ساختار و عدد کوئوردیناسیون مورد مطالعه قرار گیر...

Journal: :Journal of Electrochemical Science and Engineering 2022

This work describes the development and application of chemically modified carbon paste electrode (CMCPE) with metal ion complexes transition metals Co(II) Cu(II) anchored on functionalized silica (SF). The prepared CMCPE was used for determination dopamine (DA) in presence pyridoxine (VB6) commercially available pharmaceutical formulation, without any treatment samples. CMCPEs were built by in...

Journal: :Dalton transactions 2011
Mads S Vad Anne Nielsen Anders Lennartson Andrew D Bond John E McGrady Christine J McKenzie

The monoanionic N(4)O ligand N-methyl-N,N'-bis(2-pyridylmethyl)ethylenediamine-N'-acetate (mebpena(-)) undergoes oxidative C-N bond cleavage in the presence of Co(II) and O(2). The two resultant fragments are coordinated to the metal ion in the product [Co(III)(2-pyridylformate)(mepena)]ClO(4) (mepena(-) = N-methyl-N'-(2-pyridylmethyl)ethylenediamine-N'-acetato). Bond cleavage does not occur in...

Arumhgam Sakthivel Natarajan Raman, Rajendran Antony Ramaraj Jeyamurugan

Few novel cobalt(II) and copper(II) complexes [M(fmp)3]Cl2, [M(fmp)(bpy)2]Cl2,[M(fmp)(phen)2]Cl2 and [M(fmp)(phen)(bpy)]Cl2 (fmp = 3-furan-2-ylmethylene-pentane-2,4-dione, phen = 1,10-phenanthroline, bpy = 2,2'-bipyridine) have been synthesized andcharacterized by elemental analyses, molar conductance, magnetic susceptibility measurements,IR, electronic, EPR, mass spectra and cyclic voltammetri...

2011
Hailiang Yin Fengjuan Yin Yukun Lu

In the title compound, {[Co(2)(C(16)H(6)O(8))(C(12)H(8)N(2))(H(2)O)(2)]·H(2)O}(n), one Co(II) ion has a {CoN(2)O(4)} distorted octa-hedral environment defined by two N atoms of one 1,10-phenanthroline (phen) ligand, three O atoms of the carboxyl-ate groups of three biphenyl-3,3',4,4'-tetra-carboxyl-ate (BPTC) ligands, one of which is bidentate, and one O atom from one coordinated water mol-ecul...

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