Kosrow ZAMANI, Akbar MOBINIKHALEDI

7979

1H NMR Studies of Some Imidazole Ligands Coordinated to Co(III)

Chemical shifts for proton signals of an imidazole ring coordinated to Co(III) move downfield as the total complex charge increases. However, the C(2) - H chemical shift of the imidazole ring in cis-[Co(en)2(N-mIm) OPO3H]°, which has no charge compared to those of cis-[Co(en)2(N-mIm) OPO3H]+ and cis}-[Co(en)2(N-mIm) OPO3H2]2 + , moves downfield. These unexpected phenomena could be attributed to an intramolecular interaction between the phosphate anion group and C(2) - H of the imidazole ligand.
Anahtar Kelimeler:

Turk. J. Chem., 27, (2003), 71-76. Full text: pdf Other articles published in the same issue: Turk. J. Chem., vol.27, iss.1.

1H NMR Studies of Some Imidazole Ligands Coordinated to Co(III)

Chemical shifts for proton signals of an imidazole ring coordinated to Co(III) move downfield as the total complex charge increases. However, the C(2) - H chemical shift of the imidazole ring in cis-[Co(en)2(N-mIm) OPO3H]°, which has no charge compared to those of cis-[Co(en)2(N-mIm) OPO3H]+ and cis}-[Co(en)2(N-mIm) OPO3H2]2 + , moves downfield. These unexpected phenomena could be attributed to an intramolecular interaction between the phosphate anion group and C(2) - H of the imidazole ligand.
Keywords:

Turk. J. Chem., 27, (2003), 71-76. Full text: pdf Other articles published in the same issue: Turk. J. Chem., vol.27, iss.1.,

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Turkish Journal of Chemistry-Cover
  • ISSN: 1300-0527
  • Yayın Aralığı: 6
  • Yayıncı: TÜBİTAK
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