Gas-phase C-S bond cleavage and crown opening versus nitrogen heterocycle loss from Ru-II complex ions with 1,4,7,10-tetrathiacyclododecane and bidentate diimines
authors Izquierdo, RA; Barros, CMF; Amado, FML; Santana-Marques, MGO; Ferrer-Correia, AJ; Madureira, J; Santos, TM; Felix, V
nationality International
journal INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
author keywords Ru(II) complexes; diimines; [12]aneS(4); ESMS; dimaine loss; thiacrown fragmentation
keywords ELECTROSPRAY MASS-SPECTROMETRY; FAST-ATOM-BOMBARDMENT; COLLISIONALLY ACTIVATED DISSOCIATION; TRANSITION-METAL COMPLEXES; MIXED-LIGAND COMPLEXES; RUTHENIUM(II) COMPLEXES; AMINO-ACIDS; STEREOCHEMICAL DIFFERENTIATION; ORGANOMETALLIC CHEMISTRY; MOLECULE REACTIONS
abstract Anew series of ruthenium(II) complexes with the general formula [Ru-II([12]aneS(4))(NN)]X-2, where NN are bidentatediimines, [12]aneS(4) is 1,4,7,10-tetrathiacyclododecane, and X is Cl- or PF6-, were studied by electrospray mass spectrometry (ESMS). Thiacrown fragmentation and intact diimine loss are the two major types of gas-phase reactions observed. The diimine losses occur mainly from the ion pairs formed by the inner sphere cations with halogen anions and are more significant for the complexes with flexible cross-bridged diimines. The fragmentations occur predominantly without changes in the oxidation state of the metal centre. (c) 2005 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 1387-3806
year published 2005
volume 243
issue 3
beginning page 257
ending page 268
digital object identifier (doi) 10.1016/j.ijms.2005.03.008
web of science category Physics, Atomic, Molecular & Chemical; Spectroscopy
subject category Physics; Spectroscopy
unique article identifier WOS:000229415000008
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