Synthesis and structure of two palladium(II) complexes bearing acetonitrile and N-heterocyclic carbene derived from imidazole

Truong Thi Cam Mai; Nguyen Thi Thanh Chi

doi:10.15625/2525-2518/57/4/13563

Synthesis and structure of two palladium(II) complexes bearing acetonitrile and N-heterocyclic carbene derived from imidazole

Truong Thi Cam Mai, Nguyen Thi Thanh Chi

Author affiliations

Authors

Truong Thi Cam Mai Department of Chemistry, Quy Nhon University, 170 An Duong Vuong, Quy Nhon, Viet Nam
Nguyen Thi Thanh Chi Faculty of Chemistry, Hanoi National University of Education,136 Xuan Thuy, Ha Noi, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/57/4/13563

Keywords:

N-heterocyclic carbenes, Pd(II) complexes, acetonitrile, NMR spectra, single-crystal X-ray diffraction.

Abstract

The reaction of [PdCl₂(CH₃CN)₂] (1) with either 1,3-bis(2,4,6-trimethylphenyl)imidazolium chloride (IMes·HCl) or 1,3-bis(2,6-diisoproylphenyl)imidazolium chloride (IPr·HCl) in the present of Ag₂O afforded two mixed monocarbene-CH₃CN complexes, namely trans-[PdCl₂(CH₃CN)(IMes] (2) and trans-[PdCl₂(CH₃CN)(IPr)] (3), with the high yield (85-90%). The structure of 2 and 3 were elucidated by ESI mass, IR, ¹H NMR and ¹³C NMR spectra. For 2, single-crystal X-ray diffraction study was also carried out. The results show that the CH₃CN in 2 and 3 coordinates with Pd(II) via the N atom, the deprotonated imidazolium salts are bound up with Pd(II) via the C atom (NCHN) and occupy trans-position in comparison with the CH₃CN.

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Published

01-07-2019

How to Cite

[1]

T. T. C. Mai and N. T. T. Chi, “Synthesis and structure of two palladium(II) complexes bearing acetonitrile and N-heterocyclic carbene derived from imidazole”, Vietnam J. Sci. Technol., vol. 57, no. 4, pp. 468–476, Jul. 2019.

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Issue

Vol. 57 No. 4 (2019)

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Materials

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