Zn(II) Complexes with Quinoline Supported Amidate Ligands: Synthesis, Fluorescence, and Catalytic Activity
- Authors: Rehman F.1, Zafar M.N.1, Yousuf S.2, Nazar M.F.1, Mughal E.U.1, Malik A.1, Sumrra S.H.1, Zafar M.N.1, Rafique H.1
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Affiliations:
- Department of Chemistry
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences
- Issue: Vol 89, No 12 (2019)
- Pages: 2516-2521
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/223232
- DOI: https://doi.org/10.1134/S1070363219120302
- ID: 223232
Cite item
Abstract
Zn(II) complexes of N-(quinolin-8-yl)picolinamide (HL1) (1) and N2,N6-di(quinolin-8-yl)pyridine-2,6-dicarboxamide (H2L2) (2) have been synthesized by deprotonation of the ligands and characterized by IR, NMR, and Single crystal X-ray crystallography. The mononuclear [Zn(L1)2] (3) and homodinuclear [Zn2(L2)2] (4) complexes are characterized by distorted octahedral geometries stabilized by hydrogen bonding and weak π···π interaction. The complexes demonstrate intense fluorescence bands in comparison with their corresponding ligands with well-distinguished intensity. The complexes act as efficient catalysts in various transesterification reactions. Among those, the best results have been achieved with complex 3 in conversion of 4-nitrophenylacetate into methyl acetate within 3 h.
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About the authors
F. Rehman
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Islamabad, 45320
M. N. Zafar
Department of Chemistry
Author for correspondence.
Email: mnzafar@qau.edu.pk
Pakistan, Islamabad, 45320
S. Yousuf
H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences
Email: mnzafar@qau.edu.pk
Pakistan, Karachi, 75270
M. F. Nazar
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Gujrat, 50700
E. U. Mughal
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Gujrat, 50700
A. Malik
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Islamabad, 44000
S. H. Sumrra
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Gujrat, 50700
M. N. Zafar
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Gujrat, 50700
H. Rafique
Department of Chemistry
Email: mnzafar@qau.edu.pk
Pakistan, Gujrat, 50700