Complexes of 2,6_diacetylpyridine-di-(1R)_(-)_fenchone diazine (fench=NN=CMe)2C5H5N) ligand with molybdenum, tungsten or palladium

Authors

  • Mustaffa Ahmad
  • Illyas Md I sa

Keywords:

Molybdenum complexes, tungsten complexes, palladium complexes; bidentateN,N ligand complexes, terdentate-N,N,N ligand complexes, fenchone azine ligand complexes

Abstract

The Schiff_base ligand 2,6_diacetylpyridine_di−(1R)−(-)−fenchone diazine (9) was prepared by heating 2,6_diacetyl_pyridine (7) and fenchone hydrazone (8) in boiling ethanol in the presence of acetic acid as the catalyst for 28 h. Treatment of (9) with [Mo(CO)4(nbd)] or [W(CO)4(nbd)] in benzene at 80 0C gave the tetracarbonylmolybdenum(0) (10) or tetracarbonyltungsten(0) (11). The complexes (10) and (11) showed that the diazine (9) acted as a bidentate chelating ligand bonded through the pyridyl nitrogen and only one of the imino nitrogen donor atoms of the ligand involved in the bonding. However, diazine (9) acted as a planar terdentate N,N,N_donor_ligand when reacted with palladium(II) to give the cationic products of (12), (13) and (15), respectively.

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Author Biographies

Mustaffa Ahmad

Department of Chemistry, Faculty of Science and Mathematics, University Pendidikan Sultan Idris

Illyas Md I sa

Department of Chemistry, Faculty of Science and Mathematics, University Pendidikan Sultan Idris

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Published

2019-01-19

How to Cite

Ahmad, M., & sa, I. M. I. (2019). Complexes of 2,6_diacetylpyridine-di-(1R)_(-)_fenchone diazine (fench=NN=CMe)2C5H5N) ligand with molybdenum, tungsten or palladium. Journal of Science and Mathematics Letters, 3(1), 56–63. Retrieved from https://ojs.upsi.edu.my/index.php/JSML/article/view/392

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