DOAJ Open Access 2019

Potentiometry, Effect of Solvent and Thermodynamics of Novel Carbohydrazone and Its Transition Metal(II) Complexes

Ahmed A. El-Sherif Elbastweesy R. Elbastweesy Gaber M. Abu El-Reash Mutlaq S. Aljahdali

Abstrak

The ligand (2E,2'E)-2,2'-(carbonylbis(hydrazine-2-yl-1-ylidene))dipropionic acid (CBHP) had been synthesized and characterized using different tools of analysis. Protonation constants of the novel (2E,2'E)-2,2'-(carbonylbis(hydrazine-2-yl-1-ylidene))dipropionic acid (CBHP) ligand and its corresponding metal-CBHP stability constants with Cu(II), Ni(II), Co(II) and Zn(II) ions were measured in aqueous solution at ionic strength (I) of 0.1 mol.dm-3 NaNO3. The order of stability for the formed complexes with reference to the metal ions complies with this order Cu(II) > Ni(II) > Co(II) > Zn(II) in harmony with the Irving-Williams stability order. The speciation of different species in solution has been assessed as a function of pH. The thermodynamic parameters were calculated and discussed. The effect of solvent on the protonation equilibria of the ligand was also discussed.

Topik & Kata Kunci

Industrial electrochemistry Physical and theoretical chemistry

Penulis (4)

Ahmed A. El-Sherif

Elbastweesy R. Elbastweesy

Gaber M. Abu El-Reash

Mutlaq S. Aljahdali

Format Sitasi

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El-Sherif, A.A., Elbastweesy, E.R., El-Reash, G.M.A., Aljahdali, M.S. (2019). Potentiometry, Effect of Solvent and Thermodynamics of Novel Carbohydrazone and Its Transition Metal(II) Complexes. https://doi.org/10.20964/2019.08.03

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Informasi Jurnal

Tahun Terbit: 2019
Sumber Database: DOAJ
DOI: 10.20964/2019.08.03
Akses: Open Access ✓