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Unprecedented intact radical anions, closed shell anions, cluster ions, and traditional cations and radical cations by LIFDI-MS.
Linden, Mathias H; Linden, H Bernhard.
Afiliação
  • Linden MH; Linden CMS GmbH, Auf dem Berge 25, 28844 Weyhe, Germany.
  • Linden HB; Linden CMS GmbH, Auf dem Berge 25, 28844 Weyhe, Germany.
Eur J Mass Spectrom (Chichester) ; 29(1): 5-11, 2023 Feb.
Article em En | MEDLINE | ID: mdl-36605010
ABSTRACT
Liquid injection field desorption ionization (LIFDI) proves the extraordinary softness of the ionization process combined with a convenient sample supply under the exclusion of moisture and air. LIFDI-mass spectrometry (MS) is used for organometallic and other seriously air-sensitive compounds forming intact ions without substantial fragmentation. Unprecedented molecular radical anions M-• are presented along with well-known intact M+• radical cations. Furthermore closed shell cations [C]+ and adduct ions like [M + H]+ or [M + Alkali]+ are gently transferred from the solid emitter surface into the gas phase. Anions [A]- or [M - H]- are accessible by LIFDI-MS at medium field strengths. Ion pairs [C]+[A]- are separately detected by positive and negative mode LIFDI-MS, respectively. Here we give an overview of the different ion types accessible by LIFDI-MS. For the first time the field ionization/desorption of solar cell electron acceptor compounds is shown to deliver M-• and M2-• radical ions.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Eur J Mass Spectrom (Chichester) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Alemanha

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Eur J Mass Spectrom (Chichester) Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Alemanha