Synthesis, Thermoanalysis, and Thermal Kinetic Thermogravimetric Analysis of Transition Metal Co(II), Ni(II), Cu(II), and Zn(II) Complexes with 2-(2-Hydroxyphenyl)benzimidazole (HL)

Abstract

Four complexes with general formulas MIIL2·CH3OH (M = Co, Zn) and MIIL2 (M = Ni, Cu) were synthesized by transition metal ions MII (Co, Ni, Cu, Zn) reacting with 2-(2-hydroxyphenyl)benzimidazole (HL). Their thermal properties were studied; the probable thermal decomposition mechanism for the first step of the Co(II) and Zn(II) complexes was suggested, and the kinetic parameters were also given.

Catalytic oxidation of primary aromatic alcohols using half sandwich Ir(III), Rh(III) and Ru(II) complexes: A practical and theoretical study

“…The clear exothermic peak in the DSC trace ( Fig. 5b) further confirms the crystalline nature of the metal complexes [44]. …”

“…It is evident that substrates with groups present in the para position (Entries 2, 5, 7 and 8) were oxidized much faster than those with ortho substituted groups present in benzyl alcohol, in the presence of base [24,44] (Entries 3 and 6), likely due to steric effects. The bulky ortho substitution could cause a decrease in the benzyl alcohol oxidation rate [46] (Entries 2 and 5).…”

Determination of the relative ligand‐binding strengths in heteroleptic IrIIIcomplexes by ESI‐Q‐TOF tandem mass spectrometry

“…In particular, the robustness of luminescent chromophores is a requirement for the development of durable optoelectronic devices. Besides isothermal titration calorimetry, [30,31] differential scanning calorimetry, [30,32,33] and thermogravimetric analysis [34][35][36] and the modern tools of MS [37,38] have been applied to determine the stability of various types of transition metal ion complexes. With respect to the latter ones, soft ionization techniques such as electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI) have become available to investigate the strength of non-covalent interactions in the gas phase.…”

Thermogravimetric Analysis of Atomized Ferromagnetic Composites with Multiwalled Carbon Nanotubes: An Unusual Behavior of Nickel in Nanospace

“…The TGA characterization of Co and Ni salts have been analyzed extensively in the literature. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] The formation of oxides at the characteristic temperature has been earlier discerned by Fourier Transform Infrared Spectroscopy. 6 When the ferromagnetic atom is in the environment of multiwalled carbon nanotubes, the above oxidation is inhibited due to the spin polarization effect described by Mott and Fagan.…”