Volume 33, Issue 9 e5096
FULL PAPER

Comparative Studies of Some Novel Cu2+ and Fe3+ Chelates Derived From Tricine (L1) by Single Crystal X-ray, Spectroscopic and Biological Data: Applications to Investigate Antitumor Activity

Eman A. Hassan

Eman A. Hassan

Chemistry Department, Faculty of Science, Mansoura University, Egypt

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Nagwa Nawar

Nagwa Nawar

Chemistry Department, Faculty of Science, Mansoura University, Egypt

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Mohsen M. Mostafa

Corresponding Author

Mohsen M. Mostafa

Chemistry Department, Faculty of Science, Mansoura University, Egypt

Correspondence

Mohsen M. Mostafa, Chemistry Department, Faculty of Science, Mansoura University, Egypt.

Email: [email protected]

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First published: 21 July 2019
Citations: 3

Abstract

Novel Cu2+ and Fe3+ chelates derived from L1 were synthesized and characterized by single crystal X-ray diffraction. The results indicate that the Fe (III) crystal, [Fe(L1-H)Cl2], has an orthorhombic structure of the type pc2b while the dimeric Cu (II) crystal, [Cu(L1-H)Cl … ClCu(L1-H)], has a monoclinic with space group Cc. X-ray diffraction and spectroscopic studies revealed that L1 acts as monobasic tetradentate with octahedral geometry in Fe (III) crystal while it behaves as dibasic tetradentate with distorted-octahedral in the Cu (II) crystal. Also, the two chelates were characterized by spectral, magnetic and thermal analyses. DFT parameters were used to prove the liberation of a proton from COOH rather than NH groups. The kinetic and thermodynamic parameters of Fe (III) chelate were determined by Coats-Redfern and Horowitz-Metzger methods. Cyclic voltammogram provides information about the oxidation states of Cu (II) and Fe (III) chelates. Antitumor activity against Epitheliod carcinoma (Hela), breast cancer (MCF-7) and antibacterial activities of chelates were investigated.

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