caa a22 4500 469038004 CHVBK 20180323132801.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF00808270 doi (NATIONALLICENCE)springer-10.1007/BF00808270 Hamdi Suhaila Department of Chemistry, College of Education, University of Basrah, Basrah, Iraq aut The mass spectral fragmentation of copper(II) complexes of cyclic β-diketones [Elektronische Daten] [Suhaila Hamdi] Massenspektroskopische Fragmentierung von Kupfer(II)-Komplexen cyclischer β-Diketone Summary: Electron impact mass spectra of several bis(2-trifluoroacetylcycloalkanonato) copper(II) and bis(2-acetylcycloalkanonato) copper(II) chelates, in which the cyclic β-diketonate moiety comprises five-, six-, seven-, and eight-membered ring systems, have been recorded. Compared with other copper(II) chelates of acyclic β-diketonates, the present series of copper(II) cyclic β-diketonates exhibited more pronounced intramolecular reduction reactions accompanied by a remarkably facile hydrogen migration resulting in the formation of the [LCu(I)-H]+ ion as the base peak in all complexes investigated. The proposed fragmentation pathways leading to the formation of a number of important copper-containing daughter ions have been confirmed by metastable scanning of the corresponding parent ion spectra using the defocusing technique. Springer-Verlag, 1992 Mass Spectra nationallicence Bis(2-trifluoroacetylcycloalkanonato) copper(II) nationallicence Bis(2-acetylcycloalkanonato) copper(II) nationallicence Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/12(1992-12-01), 1081-1087 0026-9247 123:12<1081 1992 123 706 https://doi.org/10.1007/BF00808270 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00808270 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Hamdi Suhaila Department of Chemistry, College of Education, University of Basrah, Basrah, Iraq aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 123/12(1992-12-01), 1081-1087 0026-9247 123:12<1081 1992 123 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer