In structuring catalysis enzyme and chemistry, tridentate ligands and Scorpionate ligands are of significant worth. This study presents the synthesis of a tris(pyrazolyl)borate ligand to be utilized in transition metal complexes as possible redox shuttles. Complexes of general formula [AgTp], [MIIITp (Cl2)] (M = Fe, Co), Tp = tri (1-pyrazolyl) borohydride and [AgTp*], [FeIIITp*(Cl2)], Tp* = tris (3, 5-dimethyl-1-pyrazolyl) borohydride were synthesized and characterized in solid state. The Tp ligands were considered triply coordinated with the metal center with two bounded chloride atoms as per the information gathered from spectroscopic information. Entire preparations and operations were performed under argon using common Schlenk procedures. Elemental analysis was performed using (the EURO EA instrument). Thermolysis shows that the Tp ligand decomposes around 100oC and above 300oC for some complexes. The composites were simple to compose, yielded high yields, and were reasonably air sensitive. This study has examined the synthesis of a tris(pyrazolyl)borohydride ligand to develop an iron complex. Further studies conducting electrochemical tests should be carried out to demonstrate the effectiveness of this likely redox mediator.
Akef Ibrahim Alhmaideen, Hamzeh M. Abdel-Halim, Assala A. Al-Twal and Adnan S. Abu-Surrah
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