TY  - JOUR
A1  - Wanczek, Karl-Peter
T1  - Mass spectra and ion chemistry of methylphosphine, dimethylphosphine and dimethyldeuterophosphine, investigated by ion cyclotron resonance spectrometry
T2  - Zeitschrift für Naturforschung, A
N2  - The mass spectra and the ion molecule reactions of methylphosphine, dimethylphosphine and dimethyldeuterophosphine have been studied by ion cyclotron resonance spectrometry. About 50 ion molecule reaction are observed for each compound. The product ions can be classified as ions with two phosphorus atoms: P2R5+, P2R3+, P2R2+ and P2R+ (R = CH3 or H), as phosphonium and phosphinium ions and ions resulting from collision dissociations and charge exchange reactions. Tertiary ions with three phosphorus atoms like CH3P3H2+ (from CH3PH2) and (CH3)4P3H2 (from (CH3)2PH) have also been detected. The mechanisms of the ion molecule reactions, rearrangements, P -H- and C-H-reactivities and product ion structures are discussed, using in the case of dimethylphosphine the results obtained with the deuterated compound. Rate constants of formation of the more abundant product ions from the molecular ion and the CH3P+ ion, both odd electron particles, have been determined. The reactions with dimethylphosphine have much smaller rate constants than the reactions with methylphosphine.
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/73983
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-739835
SN  - 1865-7109
VL  - 30
IS  - 3
SP  - 329
EP  - 339
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -