Premium
Intraionic, interligand proton transfer in collision‐activated macrocyclic complex ions of nickel and copper
Author(s) -
Chu Ivan K.,
Lau TaiChu,
Michael Siu K. W.
Publication year - 1998
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/(sici)1096-9888(199809)33:9<811::aid-jms691>3.0.co;2-s
Subject(s) - chemistry , cyclam , protonation , nickel , amine gas treating , copper , proton , ligand (biochemistry) , ion , solvent , molecule , macrocyclic ligand , tris , inorganic chemistry , organic chemistry , metal , biochemistry , physics , receptor , quantum mechanics
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. © 1998 John Wiley & Sons, Ltd.