Inﬂuence of high energy γ-irradiation on some binuclear transition metal complexes of pentadentate ligand: Spectral, thermal, modelling, X-ray diffraction, morphological and solid electrical conductivity

El‐Boraey, Hanaa A.; AboYehia, Sobhy M; EL-Gammal, Ohyla A.

doi:10.1016/j.apradiso.2022.110121

Cited by 7 publications

(3 citation statements)

References 51 publications

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“…The measurements have been held at the concentration and wavelength. The results indicates the formation of (1:1) (metal : ligand) (12,13) ratio for all metal ions complexes.…”

Section: For the Complexes At Optimum Concentrationmentioning

confidence: 79%

“…The most familiar one is the mole ratio method. This method has been used frequently since its introduction by Yoe and Jones in (1944) (12) . The method is based on plotting measured absorbance against molar ratios of the two components of a complex when the concentration of one component is varied as the concentration of the other is held constant.…”

Section: For the Complexes At Optimum Concentrationmentioning

confidence: 99%

“…The second absorption band at (650 nm) is assigned to 6 A1g(G)→ 4 T1g(G), transitions in octahedral ( 6 S) (26) . Cobalt ion complex gives dark nutty color and its electronic spectrum Figure (12), exhibited two bands appeared at (565 nm) and (679 nm) which were assigned to the 4 T1g(F)→ 4 T1g(p) (3) and 4 T1g(F)→ 4 A2g(F) (2) transitions respectively of octahedral geometry (27) . Nickel complex Figure , showed three bands in the visible region at (452 nm) 3 A2g(F)→ 3 T1g(F) (3), (724 nm) 3 A2g(F)→ 3 T1g(F) (2) and the last one is at (959 nm) 3 A2g(F)→ 3 T2g(F), (1) (28) .…”

Section: Uv-vis Spectral Studiesmentioning

confidence: 99%

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Synthesis, spectral properties and antibacterial studies of new hetrocyclic schiff-azo ligand derived from 5-amino 2-phenyl.4h-pyrazol-3-one with some transition metal complexes

Mohammed¹,

Wadday

2022

ijhs

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In this article, a synthesized ligand [5-amino 2-phenyl.4H-pyrazol-3-one ] and it was used to prepare new complexes of Mn (II),Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Ag(I). The new ligand (HMABP) has categorized by Micro Elemental Analysis (C.H.N.S), UV-visible, Fourier Transform infrared (FTIR) approaches, 1H,13C-NMR spectroscopy and mass spectroscopy. The consequence has specified that the ligand was represented as N,N,O-tetradentate. The preparing of complexes has accomplished after fixing the finest concentration and pH. UV-Vis spectra of these complexes solutions have been examined for a range of pH (3-10) and concentration (1x10-4-5.5x10-4) Molar that comply with Lambert-Beers Law. A stoichiometry of the complexes has comprehended in relation to mole ratio which has gotten from spectroscopic investigations of the complex has solutions. The ratio of metal: ligand was achieved with (1:1) for all complexes. The metal ions complexes were characterized by FTIR, UV-Visible, molar conductance, atomic absorption, magnetic susceptibility, elemental analysis C.H.N.S techniques. From the results of physico-chemical and spectral techniques, octahedral geometry except with Pd2+ was square planar and tetrahedral shape with Ag+ have been proposed for these metal complexes.

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“…The measurements have been held at the concentration and wavelength. The results indicates the formation of (1:1) (metal : ligand) (12,13) ratio for all metal ions complexes.…”

Section: For the Complexes At Optimum Concentrationmentioning

confidence: 79%

Section: For the Complexes At Optimum Concentrationmentioning

confidence: 99%