Program

Poster Presentations

Day 3, June 12（Fri.）　　Room P (5F 501+502)

3P-14

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Fragmentation of n-heptane using a field ionization time-of-flight mass spectrometer with dual time-windows

(¹YCU, ²Kagoshima Univ., ³JEOL)
^oMitsuo Takayama¹, Hirokazu Takanashi², Masahiro Hashimoto³, Masaaki Ubukata³, Kenji Nagatomo³, Azusa Kubota³, Jun Tamura³

The mechanism for the formation of odd electron (OE) alkene fragment ions arising from the loss of alkane from molecular ion M+. of n-heptane is examined by using a field ionization time-of-flight mass spectrometer (FI TOFMS) equipped with fast (10-16-10-12 s) and slow (10-6-10-5 s) dual time-windows for detecting molecular and fragment ions. Quantum chemical calculations suggested that OE fragment ions are produced by the loss of alkane from M+• via hydrogen rearrangement through slow time window.

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