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Vodonični jon

Vodonični jon ke termin koji IUPAC preporučuje kao termin za sve jone vodonika i njegove izotope.[1] U zavisnosti od naelektrisanja jona, razlikuju se dve klase: pozitivno naelektrisani joni i negativno naelektrisani joni.

U vodenim uslovima nađenim u biohemiji, vodonični joni postoje u hidratnoj formi hidronijum, H3O+, mada ih biohemičari često nazivaju "vodoničnim jonima" ili čak "protonima".

Hidronijum jon
Zundel kation

Kad izgubi svoj elektron, mogu da se formiraju sledeći katjoni:

In addition, the ions produced by the reaction of these cations with water as well as their hydrates are called hydrogen ions:

  • Hidronijum jon: H3O+
  • Zundel katjon: H5O2+ (imenovan po Džordžu Zundelu)
  • Eigenov katjon: H9O4+ (named for Manfredu Eigenu)

Zundelov i Eigenov katjon imaju značajnu ulogu u difuziji protona u saglasnosti sa Grotusovim mehanizamom.

U kontekstu kiselina, vodonični joni se tipično odnose na hidrone.

Vodonični anjoni se formiraju kad dodatkom elektrona:

  • Hidrid: generalno ime koje se odnosi na negativni jon nekog vodoničnog izotopa (H)
  • Deuterid: 2H, D
  • Tritid: 3H, T
  1. ^ Compendium of Chemical Terminology, 2nd edition McNaught, A.D. and Wilkinson, A. Blackwell Science, 1997, ISBN 0-86542-684-8, also online Архивирано на сајту Wayback Machine (12. децембар 2005)
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Vodonični jon
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