The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan
Japanese

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Day 2, May 12（Tue.）　　Poster (1008/09)

2P-43（2C-O9-1610）　　PDF

Structural characterization of hypervalent penta-coordinated carbon compounds by photodissociation spectroscopy and ion mobility mass spectrometry

(1Hiroshima Univ., 2Tohoku Univ.)
oSatoru Muramatsu1, Keijiro Ohshimo2, Motoki Kida1, Yuan Shi1, Fuminori Misaizu2, Yohsuke Yamamoto1, Yoshiya Inokuchi1

Structures of chemically-synthesized hypervalent penta-coordinated carbon compounds were investigated in the gas phase. Photodissociation spectroscopy (PDS) and ion mobility mass spectrometry (IMMS) revealed coexistence of two isomers, especially for p-(methylthio)phenyl-ligated compound. One isomer exhibited strong light absorption at visible region (~580 nm), which is characteristic to penta-coordinated (hypervalent) structure. On the other hand, only tetra-coordinated one is present in a single crystal (solid state). This study shows the essential role of environment for the stability of the hypervalent structure.