Английская Википедия:Imidazolate

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Шаблон:Short description Шаблон:Chembox

Imidazolate (C3H3NШаблон:Su) is the conjugate base of imidazole. It is a nucleophile and a strong base. The free anion has C2v symmetry. Imidazole has a pKa of 14.05,[1] so the deprotonation of imidazole (C3H3N2H) requires a strong base.

Occurrence

Файл:2c9v CuZn rib n site.png
In the human SOD1 enzyme (N-terminus = blue, C-terminus = red), the copper (orange sphere) and zinc (grey one) are bridged by imidazolate.[2]

Imidazolate is a common bridging ligand in coordination chemistry. In the zeolitic imidazolate frameworks, the metals are interconnected via imidazolates.[3][4] In the enzyme superoxide dismutase, imidazolate links copper and zinc centers.

References

  1. Ошибка цитирования Неверный тег <ref>; для сносок Walba не указан текст
  2. Шаблон:PDB; Шаблон:Cite journal
  3. Phan, A.; Doonan, C. J.; Uribe-Romo, F. J.; Knobler, C. B.; O'Keeffe, M.; Yaghi, O. M. "Synthesis, Structure, and Carbon Dioxide Capture Properties of Zeolitic Imidazolate Frameworks" Acc. Chem. Res. 2010, 43, 58-67. Шаблон:Doi
  4. Zhang, J.-P.; Zhang, Y.-B.; Lin, J.-B.; Chen, X.-M., "Metal Azolate Frameworks: From Crystal Engineering to Functional Materials", Chem. Rev. 2012, vol. 112, pp. 1001-1033. Шаблон:Doi