Preparation and chlorination of cobalt(II) and nickel(II) complexes of 3-hydroxypyridine |
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| Authors: | Kamal H. Halawani Ahmed H. Mostafa |
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| Affiliation: | (1) Faculty of Applied Science, Chemistry Department, University of Umm Al-Qura, P.O. Box 3711, Makkah Al-Mukaramah, Saudi Arabia |
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| Abstract: | Summary [MCl2L4] complexes (M = Co or Ni; L = 3-hydroxypyridine) were prepared by the reaction of stoichiometric amounts of 3-hydroxypyridine and MCl2 in EtOH solution. The complexes were chlorinated by passing Cl2 gas through EtOH solutions containing the metal(II) chloride and 3-hydroxypyridine to yield [CoCl2(LCl)2]·2H2O and [NiCl2(LCl)4]·4H2O, respectively. Structural assignments have been inferred from elemental and spectral analyses. Magnetic properties of the complexes are assigned and the electronic transitions are discussed. |
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