Ionization energy: Difference between revisions

From MS Terms
No edit summary
No edit summary
 
Line 21: Line 21:
This is the minimum energy of excitation of an atom, molecule or molecular moiety M required to remove an electron in order to produce a positive ion.
This is the minimum energy of excitation of an atom, molecule or molecular moiety M required to remove an electron in order to produce a positive ion.
}}
}}
{{asms|
Minimum energy required to remove an electron from a molecule.  Endothermicity of the process M  -->  M.+ .
}}
== See also ==
*[[Ionization potential]]


[[Category:Ionization]]
[[Category:Ionization]]
{{DEFAULTSORT:Ionization Energy}}
[[Category:Orange Book term]]

Latest revision as of 20:39, 4 April 2014

IUPAC RECOMMENDATIONS 2013
Ionization energy
ionization energy, Ei
Deprecated: ionization potential.

Minimum energy required to remove an electron from a neutral atom or molecule in its ground state.

Note 1: Adiabatic ionization energy refers to the formation of the molecular ion in its ground vibrational state and vertical ionization energy applies to the transition to the molecular ion without change in geometry.
Note 2: This quantity was formerly called ionization potential.
Note 3: Second ionization energy is the energy required to remove the second electron from the singly charged ion.
Related Term(s):
Reference(s):

IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979. Compiled by J. Inczédy, T. Lengyel, A. M. Ure. Blackwell Scientific Publications, Oxford (1997). On-line corrected version: http://www.iupac.org /publications/analytical compendium (2000).

IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins.

From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

Index of Recommended Terms

 




Orange Book

ORANGE BOOK DEFINITION

IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979 (see also Orange Book 2023)

Ionization energy

This is the minimum energy of excitation of an atom, molecule or molecular moiety M required to remove an electron in order to produce a positive ion.

IUPAC 1997 Orange Book Chapter 12
Index of Orange Book Terms