Abstract
Synthesis and Thermal Properties of Nickel B-diketonate Polymers
Mohammed A. Al-Anber
DOI : http://dx.doi.org/10.13005/ojc/290301
Abstract:
A mononuclear complex of [Ni(tta)2(H2O)2] (3) (tta = deprotonated of 1-thenoyl-4,4,4-trifluoroacetone (1)) has been prepared by the reaction of 1-thenoyl-4,4,4-trifluoroacetone (H-tta: 1) with Ni(OAc)2.4H2O (OAc = O2CMe) in a 2:1 molar ratio. Complex 3 can be extended to form a coordination polymers of general formula [Ni(tta)2(X)]n (X = 4,4'-bipy (4), pz (5), 1,4-dip (6)) by the reaction of nickel atom in 3 with s-donor ligand such as 4,4-bipyridine (4,4'-bipy), pyrazin (pz), and 1,4-diisocyanobenzene (1,4-dip). The reaction completion was controlled via FTIR and elemental analysis. ThermoGravimetric (TG) studies of 3 - 6 show a great thermal stability up to ca. 400 ºC for polymers, wherein the nickel oxide is formed at higher temperature as shown by calculations.
Keywords:Nickel;4,4’-Bipyridine;Polymers;1-thenoyl-4,4,4-trifluoro-acetone,Pyrazine,ThermoGravimetric
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