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第2日　5月12日（火）　16:10～16:30　C会場（1101/02）

2C-O9-1610（2P-43）　　PDF

光解離分光とイオン移動度質量分析による超原子価5配位炭素化合物の構造評価

(¹広島大院理・ ²東北大院理)
^o村松悟¹・ 大下慶次郎²・ 木田基¹・ Shi, Yuan¹・ 美齊津文典²・ 山本陽介¹・ 井口佳哉¹

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.