Sökning: "Ion-neutral reactions"

Hittade 3 avhandlingar innehållade orden Ion-neutral reactions.

  1. 1. Ion-neutral reactions of C2H2N+ with hydrocarbons : relevant to Titan’s ionosphere

    Författare :Pantea Fathi; Wolf Geppert; Einar Uggerud; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; kemisk fysik; Chemical Physics;

    Sammanfattning : To provide some insights on the formation of long-chain carbon-nitrogen bearing ions in Titan’s atmosphere, laboratory measurements of ion-neutral reactions were conducted and results are presented in the following licentiate thesis. The product ions of the C2H2N+ reaction with saturated and unsaturated neutral hydrocarbons have been studied using guided ion beam mass spectrometer (GIB-MS). LÄS MER

  3. 2. Synthesis of complex organics via molecular growth mechanisms : Combined experimental and theoretical studies on ion-neutral reactions of C2H2N+ with ubiquitous hydrocarbons in Titan's ionosphere

    Författare :Pantea Fathi; Wolf Geppert; Paul Scheier; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Astrochemistry; Complex molecules; Ion-neutral reactions; Mass spectrometry; Planetary and satellite atmospheres; Titan; kemisk fysik; Chemical Physics;

    Sammanfattning : To provide insights on the molecular growth mechanisms leading to large carbon and nitrogen-bearing species in Titan’s ionosphere, laboratory measurements of ion-neutral reactions were conducted and the results are presented in the following doctoral dissertation. The product ions of the C2H2N+ reactions with saturated and unsaturated neutral hydrocarbons have been investigated using Guided Ion Beam Mass Spectrometer (GIB-MS). LÄS MER

  4. 3. Anions from the lab to ionospheres

    Författare :Fredrik Lindén; Wolf Geppert; Henning Zettergren; Henrik Cederquist; Olle Björneholm; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; kemisk fysik; Chemical Physics;

    Sammanfattning : Anion processes have been in the focus of interest during the last decades, especially due to their importance in planetary ionospheres.  Previous observations done by the Cassini Plasma Spectrometer, detected a multitude of heavy neutral and ionic molecules in the ionosphere of Saturn's moon Titan. LÄS MER