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Intraionic, interligand proton transfer in collision-activated macrocyclic complex ions of nickel and copper

✍ Scribed by Chu, Ivan K.; Lau, Tai-Chu; Michael Siu, K. W.

Book ID: 101222983
Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 283 KB
Volume: 33
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(199809)33:9<811::aid-jms691>3.0.co;2-s

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✦ Synopsis

Intraionic, interligand proton transfer in collision-activated macrocyclic complex ions of nickel and copper has been observed. The macrocyclic ligand 1,4,8,11-tetraazacyclotetradecane (cyclam) or tris(2-aminoethyl)amine (tren) can transfer, after collision activation, one of its amino protons to an anion, but not to a solvent molecule, adducted to the complex ; the neutral, protonated anion then leaves the complex. Proton transfer from the macrocycle to an adducted neutral, aromatic nitrogen base is also possible provided that the proton affinity of the base is sufficiently high.

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