2021/05/12 by Nadine M. Chiera, Tetsuya K. Sato, R. Eichler +17 · 2 citations
Medicine · Physics and Astronomy · Chemistry · #Radiopharmaceutical Chemistry and Applications #Advanced Chemical Physics Studies #Radioactive element chemistry and processing
paper · doi:10.1002/anie.202102808
openalex publication_date 2021/05/12 · openalex created_date 2021/05/24 · openalex updated_date 2026/07/28
Abstract The formation and the chemical characterization of single atoms of dubnium (Db, element 105), in the form of its volatile oxychloride, was investigated using the on‐line gas phase chromatography technique, in the temperature range 350–600 °C. Under the exactly same chemical conditions, comparative studies with the lighter homologues of Group 5 in the Periodic Table clearly indicate the volatility sequence being NbOCl 3 > TaOCl 3 ≥ DbOCl 3 . From the obtained experimental results, thermochemical data for DbOCl 3 were derived. The present study delivers reliable experimental information for theoretical calculations on chemical properties of transactinides.