Formation and thermochemical properties of oxychlorides of Nb and Ta; Towards the gas-phase investigation of the Superheavy Element dubnium (Db) oxychloride

Nb及びTaのオキシ塩化物の合成と熱化学的特性; 超重元素ドブニウムのオキシ塩化物の気相化学研究を目指して

Chiera, N. M.; 佐藤 哲也   ; 浅井 雅人  ; 鈴木 颯人*; 床井 健運; 富塚 知博; 豊嶋 厚史; 塚田 和明  ; 永目 諭一郎 

Chiera, N. M.; Sato, Tetsuya; Asai, Masato; Suzuki, Hayato*; Tokoi, Katsuyuki; Tomitsuka, Tomohiro; Toyoshima, Atsushi; Tsukada, Kazuaki; Nagame, Yuichiro

The adsorption of single molecules (i.e., tracer-amount scale) of NbOCl and TaOCl on quartz surfaces was explored by applying an isothermal gas-chromatographic method. Thermochemical information was obtained, in good agreement with literature data. The future accomplishment of comparative studies with DbOCl under the same experimental conditions will provide a direct information on the volatility trend in Group-5 elements, and hence, on the magnitude of relativistic effects on dubnium's electronic structure.