caa a22 4500 465729886 CHVBK 20180323111738.0 cr unu---uuuuu 170327e19901101xx s 000 0 eng 10.1007/BF02164190 doi (NATIONALLICENCE)springer-10.1007/BF02164190 Effect of molecular size on the threshold energy producing a51Cr hot atom [Elektronische Daten] [T. Matsuura, H. Takenawa, T. Suzuki, R. Hirota, K. Sasaki] The lowest retention values of51Cr hot atom in various forms of the β-diketonetype complexes, Cr(bzac)3, Cr(dpm)3 and Cr(dbm)3, as well as Cr(acac)3 as a reference, were obtained in the experimental condition in which they are regarded as the primary retentions. From these retention values, the threshold energies for producing a hot atom, the "appearance energies”, were estimated using the calculated relationship between the primary retention and appearance energy, which was obtained by the recoil energy spectra computed by the method recently developed by us. The appearance energy increased steeply with increasing molecular weight of the complex. A theoretical interpretation for this result was attempted by setting a model in which a hot atom is produced in the center of the complex and receives the stopping action by the surrounding ligand molecule. The agreement between the observed and calculated values was good. Akadémiai Kiadó, 1990 Matsuura T. Institute for Atomic Energy, Rikkyo University, 240-01, Nagasaka, Yokosuka, Japan aut Takenawa H. Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut Suzuki T. Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut Hirota R. Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut Sasaki K. Faculty of General Education, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 146/4(1990-11-01), 223-234 0236-5731 146:4<223 1990 146 10967 https://doi.org/10.1007/BF02164190 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02164190 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matsuura T. Institute for Atomic Energy, Rikkyo University, 240-01, Nagasaka, Yokosuka, Japan aut NATIONALLICENCE 700 1- Takenawa H. Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut NATIONALLICENCE 700 1- Suzuki T. Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut NATIONALLICENCE 700 1- Hirota R. Faculty of Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut NATIONALLICENCE 700 1- Sasaki K. Faculty of General Education, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, 171, Tokyo, Japan aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 146/4(1990-11-01), 223-234 0236-5731 146:4<223 1990 146 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer