ACD/Name

Free Radicals, Ions, and Radical Ions

Multiply Charged Ions Rule C-86

86.1 - When two or more different anionic centres are present in one structure, the ion corresponding to the acid that occurs first in Table C-II is designated by a suffix; for the other anionic groups the ending "-ate" or "-ide" is changed to "ato-" or "ido-", respectively, and these groups are named as prefixes

Example to Rule C-86.1

86.2 - When named as prefix, the anionic substituents -O- and -S- are termed "oxido-" and "sulfido-", respectively.

Example to Rule C-86.2

See Recommendations'93 R-5.8.4

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Positive and Negative Ionic Centres in a Single Structure
Rule C-87

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