Protonated molecule: Difference between revisions
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An ion formed by interaction of a molecule with a proton abstracted from an ion, as often occurs in chemical ionization according to the reaction: | An ion formed by interaction of a molecule with a proton abstracted from an ion, as often occurs in [[chemical ionization]] according to the reaction: | ||
M + XH<sup>+</sup> ? MH<sup>+</sup> + X | M + XH<sup>+</sup> ? MH<sup>+</sup> + X | ||
. The symbolism [M + H]+ may also be used to represent the protonated molecule. The widely used term 'protonated molecular ion' to describe the MH+ ion is not recommended, since it suggests an associated product of a proton with a molecular ion. | . The symbolism [M + H]+ may also be used to represent the protonated molecule. The widely used term '[[protonated molecular ion]]' to describe the MH+ ion is not recommended, since it suggests an associated product of a proton with a molecular ion. | ||
'''Source''': | '''Source''': | ||
Revision as of 23:46, 16 July 2009
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Gold Book entry
Gold Book
| GOLD BOOK DEFINITION
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). |
| Protonated molecule |
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http://goldbook.iupac.org/P04908.html An ion formed by interaction of a molecule with a proton abstracted from an ion, as often occurs in chemical ionization according to the reaction: M + XH+ ? MH+ + X . The symbolism [M + H]+ may also be used to represent the protonated molecule. The widely used term 'protonated molecular ion' to describe the MH+ ion is not recommended, since it suggests an associated product of a proton with a molecular ion. Source: PAC, 1991, 63, 1541 (Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)) on page 1550 |
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