OCTAHEDRAL GEOMETRY
Green synthetic approach and antimicrobial activity of bidentate schiff base ligands and their Ni(II) complexes under microwave irradiation
... Proposed Structures On the basis of the above observations, it is tentatively suggested that CoII investigated complexes show an octahedral geometry [Figure-1] in which the Schiff bases [r] ...
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Synthesis and Structural Studies of a New Polydentate Ligand and its Ni (II) Complex
... A new polydentate ligand N-(2-hydroxyphenyl)-2-[(2- aminophenylamino)] acetamide, (HPAPAA) has been synthesized in the reaction between N-(2- hydroxyphenyl)-2-chloroacetamide and o- phenylenediamine. Ni (II) complex of ...
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Microwave assisted synthesis and structural characterisation of Nicotinic acid and Nitrito–KO mixed ligand complexes
... metal ion. The analytical data suggest that nicotinic acid acts as a monodendate ligand, and the complexes are in distorted octahedral geometry for the chromium, cobalt and nickel complexes and tetragonal ...
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Homo- and hetero- trinuclear complexes of platinum group metals with disubstituted thioethane ligands
... the octahedral geometry, while Ni complex (10) shows one d-d transition, which indicates a square planar ...of octahedral and square planar geometry (Table ...planer geometry 6 ...
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cis Dichloridobis(1,10 phenanthroline κ2N,N′)manganese(II)–2,6 dihydroxybenzoic acid–water (2/1/4)
... complex assumes a distorted octahedral geometry formed by two chloride anions and two phenanthroline (phen) ligands. The 2,6-dihydroxy- benzoic acid molecule is disordered about an inversion center. The ...
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catena Poly[di μ3 bromido hexa μ2 bromido dibromidobis(O methyl pyridine 2 carboximidate κ2N,N′)pentamercury(II)]
... coordination geometry defined by two N atoms from one O -methylpyridine-2-carboximidate ligand and two Br ...distorted octahedral geometry by six Br atoms and Hg3 atom adopts a distorted ...
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Synthesis, characterization and antimicrobial activity of isothiocyanato Fe(III) Girard's T hydrazone complex
... The octahedral geometry of the Fe(III) complex consists of the deprotonated form of the hydrazone ligand coordinated through the pyridine nitrogen, azo- methine nitrogen and carbonyl oxygen atoms with three ...
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Preparation, spectral characterization, structural study, and evaluation of antibacterial activity of Schiff base complexes for VOII, CrIII, MnII, ZnII,CdII and CeIII Abbas A. S. Al-Hamdani| Naser D. Shaalan| Shaimaa R. Bakir| Moid S. Mohammed
... tetrahedral geometry around the central metal ion except, VO II complexes that has square pyramidal geometry, but Cr III and Ce III octahedral ...
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Bis{2 [3 (cyclohexylaminio)propyliminomethyl] 4 nitrophenolato}dimethanolnickel(II) dinitrate dihydrate
... the Ni II atom is six-coordinated in an octahedral geometry by two imine N and two phenolate O atoms from two Schiff base ligands, and by two O atoms from two coordinated MeOH molecules. In the crystal ...
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Pollymetallic complexes Part C VI: Synthesis, spectral, thermo gravimetric,computational and antibacterial study of tetrameric Co(II), Ni(II), Zn(II),Cd(II) and Hg(II) complexes with OON NOO donor hexadentate azodye ligands
... posses octahedral geometry, Cu(II) complexes distorted octahedral geometry and a tetrahedral geometry is suggested for Zn(II) ,Cd(II),Hg(II) ...
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Bis(n dodecylammonium) bis(chloranilato)diethanolcuprate(II)
... distorted octahedral geometry by four O atoms of two chloranilate ligands and two O atoms of two ethanol molecules which are trans to each other in the axial ...
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Crystal structure of tetraaquabis(3,5 diamino 4H 1,2,4 triazol 1 ium)cobalt(II) bis[bis(pyridine 2,6 dicarboxylato)cobaltate(II)] dihydrate
... an octahedral geometry where the N atoms of the two triazolium cations occupy the axial positions and the O atoms of the four water molecules the equatorial ...distorted octahedral coordination ...
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Bis(2,2′:6′,2′′ terpyridine)copper(II) diperchlorate hemihydrate
... water molecule with half occupancy. The terpy ligand coor- dinates to the metal ion as a meridional terdentate ligand. As a consequence of the rigid structure of the terpy ligand the CuÐ N distances with the central ...
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Synthesis and Spectral Characterisation of Ni(II) Complexes with Amide Group Ligands Containing 1,8-Naphthyridines
... Contrary to this situation, in the case of Ni(II) in tetrahedral environment, the ³T 1 ground term leads to temperature-dependent orbital contribution to the magnetic moment. Though both octahedral and tetrahedral ...
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Study of Some Biorelevant Complexes of Transition Metals with Active Imines
... nature. Octahedral geometry has been proposed for these complexes based on elemental analyses, molar conductance, magnetic susceptibility and spectral ...
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Co (II) and Zn (II) Metal Complexes of Heterocyclic Schiff Bases: A Synthesis, Spectral and Antimicrobial Study
... distorted octahedral geometry to mononuclear Co(II) complexes of mixed ligands, while square planner geometry to mononuclear Co(II) complexes of ...
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Studies of Distorted Octahedral Complexes of Cobalt, Nickel and Copper and Their Antibacterial Properties
... distorted octahedral geometry of Co(II) ...distorted octahedral geometry of the ...in octahedral symmetry of Cu(II) ...the octahedral symmetry have also been ...
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SYNTHESIS, PHYSICO-CHEMICAL AND SPECTRAL CHARACTERIZATION AND BIOLOGICAL STUDIES OF ADDUCTS OF BIS (O-PROPYLDITHIOCARBONATO)OXOVANADIUM (IV) WITH HETEROCYCLIC AMINES
... A series of 1:1 adducts of bis(O-propyldithiocarbanato)oxovanadium(IV) with substituted pyridines have been synthesized by treating bis(O-propyldithiocarbanato)oxovanadium(IV) with substituted pyridines in acetone in ...
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Vol 7, No 7-8 (2018)
... The results of the investigations suggest octahedral geometry for the Co(II), Ni(II) and Zn(II) complexes and square planar geometry around the Cu(II) metal ion. On the basis of above studies, Schiff ...
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One pot template synthesis, characterization and biological assay of tetraaza (N4) macrocyclic complexes of transition metal ions derived from acetylacetone / succinic acid with o phenylenediamine
... where M(II)=Co(II), Ni(II), Cu(II) and Zn(II), were synthesized by the reaction of acetylacetone / succinic acid and o-phenylenediamine in presence of metal salts by adopting template method. The synthesized macrocyclic ...
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