[PDF] Top 20 Reingeniería en los procesos de control de calidad del servicio al cliente en la empresa Claro de Nicaragua.
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Synthesis, Spectral Characterization and Pharmacological Significance of Cr(III) and Mn(II) Complexes with Schiff Base and Thiocyanate Ion as Ligands
... the Cr(III) and Mn(II) complexes were recorded on Varian, Cary 5000 model UV ...the complexes and the ligands were recorded on a Perkin Elmer, Spectrum RX-I, FT IR ... See full document
348
Synthesis, spectral characterization and thermal studies of Ti (III), Cr (III) and Mn (III) complexes derived from 2 Chlorobenzohydrazone schiff’s base
... metal complexes with Ti (III), Cr (III) and Mn (III) ions have been synthesized and characterized by elemental analysis, 1 H NMR, IR, electronic spectroscopy, magnetic ... See full document
11
Fe (iii), ru (iii) and rh (iii) complexes of schiff base hydrazones: preparation, spectral characterization and pharmacological activities
... in Schiff base complexes, since they have been acknowledged and designed as biologically noteworthy ...metal complexes is significant to blueprint systems with the desired properties, as some ... See full document
17
Synthesis and characterization of Cr(III), Mn(III), Fe(III), VO(IV), Zr(IV) and UO2 (VI) complexes of schiff base derived from isonicotinoyl hydrazone
... a Schiff base ligand and its complexes with Cr(III), Mn(III), Fe(III), VO(IV), Zr(IV) and UO 2 (VI) metal ions have been ...The ligands as well as their ... See full document
8
Preparation, Physical Characterization and Antibacterial Activity of Ni (II), Cu (II), Co (II), Cd (II), Zn (II) and Cr (III) Schiff Base Complex Compounds
... of Schiff bases. Transition metal complexes of these ligands exhibit varying configurations, structural liability and sensitivity to molecular ...these complexes act as active sites for ... See full document
128
Synthesis, Spectral and Thermal Characterization of Cu(II) Complexes Containing Schiff Base Ligands and Their Antibacterial Activity Study
... metal complexes were observed in an electro thermal melting point apparatus model ...the complexes in methanol ...metal complexes was tested by Thin Layer Chromatography ... See full document
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Co(II) Complexes of New Tetra Dentate Schiff Base Ligands: Synthesis, Spectral Characterization and Catalytic Activity
... A catalytic method has been developed based on the reduction of the oxime group of PI in the presence of newly synthesized Schiff base Co(II) catalysts. This catalytic reduction process contains many ... See full document
30
Synthesis and Structural Characterization of Schiff Base Ligand and their Metal Complexes
... the synthesis and structural characterization of a 2-phenyl- 3(benzamido propyl) quinazoline (3H) -4- one semicarbazone/ thiosemicarbazone hydrochloride and its metal complexes have been ... See full document
37
Synthesis, Spectral Characterization and Thermal Behavior of Newly Derived La(III), Co(III) and Mn(II) Complexes with Schiff Base Derived from Methionine and Salicylaldehyde
... Percentage of carbon, hydrogen, sulfur and nitrogen present in the complex were recorded in a CHNS elemental analyzer (VARIO-MICRO V1.6.1, GmbH, Germany). Melting points of the studied compounds were taken in a melting ... See full document
14
Synthesis, spectral characterization and biological evaluation Cu(II) and Mn(II) metal complexes of novel Isatin schiff base ligand
... the Schiff base was found to be potentially inactive compared to its metal ...the complexes showed high antibacterial activity against ...the Schiff base and their complexes were ... See full document
87
Synthesis and Microbial Activity of Manganese (II) and Cobalt (III) Complexes of 3-Methoxy-4-Hydroxyphenylmethyelene (2- Hydroxyphenyl) Amine
... Paper discs about 3 mm in diameter were cut from Whatman-1filter paper with an office paper punch and placed in a beaker covered with aluminium foil and sterilized in an oven at 180°C for 1 h. Aliquots of 10 µL and 20 µL ... See full document
6
ANTIFUNGAL SCREENINGOF NITROGEN AND SULPHUR DONOR ATOM CONTAINING LIGAND 3,3’ THIODIPROPIONICACID BIS(5 AMINO 1,3,4 THIODIAZOLE 2 THIOL) AND ITS Mn(II),Co(II) COMPLEXES: SYNTHESIS, SPECTRSCOPIC APPROCH, MOLECULAR MODELING
... metal ion and geometry of the synthesized complexes were inferred through elemental analysis, 1 H- NMR, Mass, IR, molar conductance, magnetic susceptibility, electronic spectra, epr, and molecular ...for ... See full document
138
Synthesis and Characterization of Boron and 2 Aminophenol Schiff Base Ligands with Their Cu(II) and Pt(IV) Complexes and Evaluation as Antimicrobial Agents
... been investigated by molar conductivity, elemental analysis, FTIR, 1 H 13 CNMR, thermal analysis, UV-VIS, as well as atomic absorption and magnetic susceptibility. The biological study of the ligands and their ... See full document
11
Synthesis, Characterisation and Structural Studies of Complexes Containing Different Schiff Bases with Mn (Lll) And Mn (Ii) Transition Metals
... morpholine-N-thiohydrazone Mn (III) chloride and 5-chloro2-hydroxy acetophenone morpholine N-thiohydrozone Mn (III) chloride ...While Mn (II) complexes of respective ... See full document
22
PREPARATION AND PROPERTIES OF BINUCLEAR SCHIFF BASE COMPLEXES OF Fe (II) Zn(II)AND Mn(II)INTER –COMPLEX REACTION
... the complexes remained ...groups, Schiff base were formed. The imine nitrogen of the Schiff base was allowed to coordinate with the metal nearby while the deficiency created at the ... See full document
18
SYNTHESIS, SPECTRAL CHARACTERIZATION AND ANTIMICROBIAL STUDIES OF COPPER (II) COMPLEX CONTAINING MIXED LIGANDS NITROGEN OXYGEN DONOR SCHIFF BASE (4 BROMO (2 CARBOXYPHENYL) PYRIDINE 2YL ETHYLENE AMINE) AND 2,2’ BIPYRIDINE
... The Schiff base complexes are considered to be among the most important stereo chemical models in main group and transition metal coordination chemistry due to their preparative accessibility and ... See full document
26
Synthesis, Spectral Characterization and Biological Evaluation of Chromium(III) Complexes of Schiff Base
... moment in the range of 3.80 - 3.84 B.M. corresponding to three unpaired electrons. EPR and elec- tronic spectral studies reveal that the complexes possess six-coordinated octahedral geometry. The ligand ... See full document
25
Systhesis and Characterization of Some Chromium (Iii) Schiff Base Complexes
... (III) Schiff base complexes have been synthesized using Schiff base formed by the condensing by the respective aldehyde with diamene in ethanol ...the complexes were ... See full document
5
Thermal Studies of Thiazole Schiff Base Metal Complexes of Co(II), Ni(II), Cu(II), Cr(III), Mn(III), Fe(III), VO(IV), Zr(IV) and UO2(IV)
... metal complexes. Ligand was found to bind the metal ion monobasic (ON) bidentate ...metal complexes from the nature of thermograms and half decomposition ... See full document
5
New complexes of chelating Schiff base: Synthesis, spectral investigation, antimicrobial, and thermal behavior studies
... chelation complexes of Co(II), Ni(II), and Cu(II) with the Schiff bases ligand HL contains an oxime functional group ligand that has been characterized with different analytical and ... See full document
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