Protonated molecule: Difference between revisions
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== [[Orange Book]] Entry == | == [[Orange Book]] Entry == | ||
An ion formed by interaction of a molecule with a proton abstracted from an ion, as often happens in [[Chemical Ionization]] according to the reaction M + XH<sup>+</sup> → MH<sup>+</sup> + X. The symbolism [M+H]<sup>+</sup> may also be used. The widely used term '[[Protonated Molecular Ion]]' is not recommended as it suggests an association product of a proton with a molecular ion. | |||
== Related Terms == | == Related Terms == | ||
Revision as of 01:29, 11 February 2005
| DRAFT DEFINITION |
| Protonated molecule |
|---|
| An ion formed by interaction of a neutral molecule with a proton, and represented by the symbolism [M + H]+. The term 'protonated molecular ion' is not recommended as it suggests a different species formed by the association of a proton with a molecular ion. Likewise, the ambigous terms 'quasi-molecular ion' or 'pseudo-molecular ion' should be avoided. |
| Considered between 2004 and 2006 but not included in the 2006 PAC submission |
| This is an unofficial draft definition presented for information and comment. |
Orange Book Entry
An ion formed by interaction of a molecule with a proton abstracted from an ion, as often happens in Chemical Ionization according to the reaction M + XH+ → MH+ + X. The symbolism [M+H]+ may also be used. The widely used term 'Protonated Molecular Ion' is not recommended as it suggests an association product of a proton with a molecular ion.
