Synthesis and characterization of Pd(II) and Ni(II) complexes of schiff bases and catalytic activity of Pd(II) complexes / Amalina Mohd Tajuddin, Hadariah Bahron and Shahrul Nizam Ahmad

Mohd Tajuddin, Amalina and Bahron, Hadariah and Ahmad, Shahrul Nizam (2015) Synthesis and characterization of Pd(II) and Ni(II) complexes of schiff bases and catalytic activity of Pd(II) complexes / Amalina Mohd Tajuddin, Hadariah Bahron and Shahrul Nizam Ahmad. Scientific Research Journal, 12 (2). pp. 2-16. ISSN 1675-7009

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Abstract

Six new Pd(II) and Ni(II) metal complexes of N, O-bidentate (LI, L2) and ONNO-tetradentate (L3) Schiff base ligands have been synthesized. The compounds were characterized via various physicochemical and spectroscopic techniques namely elemental analysis (CHN), FT-IR, IHand 13C NMR as well as magnetic susceptibility measurement. All complexes showed diamagnetism indicating that they are square planar complexes. Catalytic performance ofPd(Ll)2 andPd(L2)2 were investigated for Heck cross-coupling reaction under optimum operating parameters, monitored using GC-FID for 6 h of reaction time in inert conditions. High catalytic activities of up to 90% were observed in the presence of triethylamine as base and DMA as solvent at 100°C with 1 mmol% catalyst loading. The mechanism of catalyzed Heck reaction is proposed to go through a series of conversion ofPd(0)/Pd(II).

Item Type: Article
Creators:
CreatorsEmail
Mohd Tajuddin, AmalinaUNSPECIFIED
Bahron, HadariahUNSPECIFIED
Ahmad, Shahrul NizamUNSPECIFIED
Subjects: Q Science > QD Chemistry > Organic chemistry > Schiff bases
Divisions: Institute of Research Management and Innovation (IRMI)
Journal or Publication Title: Scientific Research Journal
ISSN: 1675-7009
Volume: 12
Number: 2
Page Range: pp. 2-16
Item ID: 16080
Uncontrolled Keywords: Schiff base, palladium(II), nickel(II), Heck reaction, catalysis
Last Modified: 02 Feb 2017 07:53
Depositing User: Staf Pendigitalan 5
URI: http://ir.uitm.edu.my/id/eprint/16080

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