@article{oai:repo.qst.go.jp:00046202, author = {Wakai, Atsushi and Tsuchida, Kazuki and Fukumura, Toshimitsu and Suzuki, Kazutoshi and 若井 篤志 and 土田 一輝 and 福村 利光 and 鈴木 和年}, issue = {1/3}, journal = {Chemical Physics Letters}, month = {Oct}, note = {To investigate a possible means of achieving isotopic enrichment of methyl iodide (CH3I), we studied the 6s Rydberg states of 13,12CH3I by (2 + 1) resonance-enhanced multiphoton ionization. For band (v3 hot band) excitation (at a full width at half maximum of 14 cm−1), we observed a well-resolved isotope shift of +16 cm−1. The band shape, which has a broad shoulder on the red side and an abrupt decrease on the blue side, indicates that this resonance is ideal for enriching the concentration of the desired lighter isotope (the isotopomer).}, pages = {23--28}, title = {Isotopic effect in the (2+1) REMPI spectra of 13C-substituted methyl iodide for UV selective dissociation}, volume = {516}, year = {2011} }