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Vol. 31 No. 3 (2019): Vol 31 Issue 3

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Synthesis of Cationic Pd(II) Complexes with 5-Membered Ring Chelating Iminoylcarbene Ligand and Its Catalytic Activity on Norbornene Polymerization

https://doi.org/10.14233/ajchem.2019.21645
Roushown Ali
Department of Chemistry, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh
Jubaraj Chandra
Department of Chemistry, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh
Tariqul Hasan
Department of Chemistry, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh

Corresponding Author(s) : Tariqul Hasan

thasan.chem@ru.ac.bd

Asian Journal of Chemistry, Vol. 31 No. 3 (2019): Vol 31 Issue 3

Abstract

Iminoyl N-heterocyclic carbine ligand with cationic allyl Pd(II) complex (3) was successfully synthesized by transmetallation of corresponding Ag complex with one equivalent of [Pd(allyl)(COD)]+SbF6–. A slightly distorted square planer structure of the Pd(II) complex 3 was confirmed by single crystal X-ray diffraction analysis. The Pd(II) complex 3 is stable in air and found to show moderate activity in the polymerization of norbornene without any activator. The polynorbornene produced with Pd(II) complex 3 was obtained to be stable up to 440 °C. The 1H and 13C NMR spectra of the polymer indicated addition polymerization of norbornene and the presence of the vinylene group at the end of polymer chain.

Keywords

Cationicallyl Pd(II) complex Iminoyl N-heterocyclic Norbornene polymerization Catalytic activity
Ali, R., Chandra, J., & Hasan, T. (2019). Synthesis of Cationic Pd(II) Complexes with 5-Membered Ring Chelating Iminoylcarbene Ligand and Its Catalytic Activity on Norbornene Polymerization. Asian Journal of Chemistry, 31(3), 637–641. https://doi.org/10.14233/ajchem.2019.21645
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