| 词条 | Anation |
| 释义 |
In coordination chemistry, anation is the "replacement of the ligand water by an anion in a coordination entity."[1] The term is however used more loosely to include displacement of any neutral ligand by an anion.[2] The reaction is pervasive in coordination chemistry. The reverse reaction, displacement of an anionic ligand by water, is called aquation. ExampleAn example is the conversion of the aquo complex [Co(NH3)5(H2O)]3+ with bromide to give pentamminecobalt(III) bromide complex: [Co(NH3)5(H2O)]3+ + Br− → [Co(NH3)5Br]2+ + H2O The mechanism of such reactions often invoke ion-pairing of the entering anion in the second coordination sphere followed by dissociation of the aquo ligand]].[2] References1. ^{{GoldBookRef |title=anation |file=AT06766 }} 2. ^1 Ghosh, M. C.; Bhattacharya, P.; Banerjee, P., "Anation Reactions of Cobalt(Iii) Complexes", Coordination Chemistry Reviews 1988, 91, 1-34. {{DOI|10.1016/0010-8545(88)80012-2}} 4 : Substitution reactions|Coordination chemistry|Reaction mechanisms|Water chemistry |
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