Syntheses and characterization of the complexes of Molybdenum, Tungsten and Palladium with 2-diacetylpyridine-(1R)-(-)_fenchone azine

Mustaffa Ahmad

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Type :	Article
Subject :	Q Science
ISSN :	1985-7918
Main Author :	Mustaffa Ahmad
Additional Authors :	Illyas Md Isa Bernard L. Shaw Sarath D. Perera
Title :	Syntheses and characterization of the complexes of Molybdenum, Tungsten and Palladium with 2-diacetylpyridine-(1R)-(-)_fenchone azine
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Place of Production :	Tanjong Malim
Publisher :	Fakulti Sains dan Matematik
Year of Publication :	2010
Notes :	Vol. 2 No. 1 (2010): Journal of Science and Mathematics
Corporate Name :	Perpustakaan Tuanku Bainun
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Abstract : Perpustakaan Tuanku Bainun

The diimine 2-diacetylpyridine-(1R)-(-)-fenchone azine {fench=NN=CMe}C5H5N (4) was prepared by heating 2-diacetylpyridine with fenchone hydrazone (3) in boiling ethanol in the presence of acetic acid as the catalyst. Treatment of [Mo(CO)4(nbd)], [Cr(CO)4(nbd)] or [W(CO)4(nbd)] (nbd = norbornadiene) with 2-diacetylpyridine-(1R)-(-)-fenchone azine {fench=NN=CMe}C5H5N (4) gave the five-membered chelated N,N bonded carbonylcomplex of (5), (6) or (7), respectively. Treatment of [PdCl2(NCPh)2] with the azine ligand (4) gave the palladium-complex (8). Treatment of (8) with LiBr or NaI gave the metathesis product of (9) or (10), respectively. Treatment of [{(_3-2-MeC3H4)PdCl2}2] with the azine ligand (4) gave the chloride salt which was then isolated as the corresponding PF6 salt (11). Keywords Molybdenum complexes, tungsten complexes, palladium complexes, bidentate N-N ligand complexes, fenchone azine ligand complexes

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