Protonated molecule: Difference between revisions

From MS Terms
No edit summary
(4 intermediate revisions by 2 users not shown)
Line 1: Line 1:
{{Def2|
{{Final
An ion formed by interaction of a molecule with a proton, and represented by the symbol [M + H]<sup>+</sup>.
|acronym=
|def=Deprecated: [[protonated molecular ion]], [[pseudo-molecular ion]], [[quasi-molecular ion]].


Note 1: The term protonated molecular ion is deprecated; this would correspond to a species carrying two charges
[[Adduct ion]], represented by [M + H]<sup>+</sup>, formed by the interaction of a molecule with a [[proton]]
([[hydron]]).
:Note 1: [[Multiply protonated molecule]]s are represented by [M + nH]<sup>n+</sup> where n is the number of protons.
:Note 2: Protonated molecular ion is deprecated; this would correspond to a species carrying two positive charges plus an unpaired electron.
:Note 3: Pseudo-molecular ion and quasi-molecular ion are deprecated; a specific term such as protonated molecule, or a chemical description such as [M + H]<sup>+</sup> should be used.
|rel=[[adduct ion]]
|ref={{obgb}}


Note 2: The terms pseudo-molecular ion and quasi-molecular ion are deprecated; a specific term such as protonated molecule, or a chemical description such as [M+Na]<sup>+</sup>, [M-H]<sup>-</sup>, etc. should be used
M. Bursey. Mass Spectrom. Rev. 10, 1 (1991). (http://dx.doi.org/10.1002/mas.1280100102 )
}}
}}


== Gold Book entry ==
{{orange|
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.
}}
 
<!-- Gold Book -->
{{gold|
{{gold|
http://goldbook.iupac.org/P04908.html
http://goldbook.iupac.org/P04908.html

Revision as of 14:46, 31 March 2014