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Abstract

This research includes the preparation of a new azo 2-((2-(1H-indol-2yl)ethyl)diazinyl)-5-aminophenol, in which the diazonium salt of 2(1H-Indole-3yl)-ethylamine reacts with a compound 3-aminophenol, and complexes have been prepared with the ions of Ni (II), Pd(II), Pt(IV), and Au(III). The characteristics of compounds include F.A.A, (C. H .N and O), 1 H & 13 C-NMR, IR, LC-Mass , UV-Vis spectral, DSC/TGA curve, the measurements of magnetic, and molar conductance. Each complex has an amount of [1:1] [M:L] and does not contain electrolytes. Based on the obtained results, molecular structural and geometry have been octahedral geometry suggest of Pt(IV) complex and tetrahedral of Ni (II)complex, the square planar of both Pd(II) and Au(III) complexes. K E Y W O R D S Azo ligand Mass spectroscopy Spectroscopic studies Thermal study 2-((2-(1H-indol-2-yl)ethyl)diazinyl

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“…This shift indicates the coordination occurrence through the imine group, nitrogen ring of the thiadiazole, and S as tridentate ligand (17). The spectra of all the complexes show the additional medium intensity bands in the range 519-470, 470-412, and 369-320 cm -1 assigned to the υ(M-N), υ(M-S), and υ(M-Cl), respectively (18,21). Other bands of the coordinated water and others to water outside the coordinated sphere can be observed in Table 3.…”

“…From the conductivity value, the complex was ionic [21,22]. When observing the spectrum of the black Pt (IV) complex, four transitions were found.…”

“…The two transitions bands appeared at the frequency 22675, and 27472 cm -1 , which were attributed to 1 A1g → 1 T1g, 1 A1g → 1 T2g and another two bands were represented IL→PtCT, this transition indicated that the complex was octahedral. The conductivity measurement in DMF appeared that the complex was ionic [21]. In spectrum of AuL the magnetic moment showed that the complex possessed the (porphyry color) and a diamagnetic characteristic and two transitions were appeared in the spectrum of this complex which were attributed to 1 A1g→ 1 B1g and 1 A1g→ 1 Eg at 23696, 28985 cm 1 , respectively [23].…”

“…The FT-IR spectrum for free ligand showed five major bands 1620 cm -1 , 1581 cm -1 , 1222 cm -1 , 740 cm -1 , and 2893, 2903 cm -1 , returned to ν CH=Nschiff (24), νC=Ncyclic of thiadiazole (24), νCSC (18), ν CS (21), and ν (CH2-N) (25), respectively. Some of these peaks are shifted towards the high or low frequencies when they are coordinated with the metal ions.…”