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Eichler, R.*; Asai, Masato; Brand, H.*; Chiera, N. M.*; Di Nitto, A.*; Dressler, R.*; Dllmann, Ch. E.*; Even, J.*; Fangli, F.*; Goetz, M.*; et al.
EPJ Web of Conferences, 131, p.07005_1 - 07005_7, 2016/12
Times Cited Count:3 Percentile:72.73(Chemistry, Inorganic & Nuclear)In recent years gas-phase chemical studies assisted by physical pre-separation allowed for the productions and investigations of fragile single molecular species of superheavy elements. The latest highlight is the formation of very volatile hexacarbonyl compound of element 106, Sg(CO). Following this success, second-generation experiments were performed to measure the first bond dissociation energy between the central metal atom and the surrounding ligand. The method using a tubular decomposition reactor was developed and successfully applied to short-lived Mo(CO), W(CO), and Sg(CO).
Hennig, C.*; Ikeda, Atsushi; Emmerling, F.*; Kraus, W.*; Bernhard, G.*
Dalton Transactions, 39(15), p.3744 - 3750, 2010/04
Times Cited Count:37 Percentile:82.62(Chemistry, Inorganic & Nuclear)The coordination of the limiting U(IV) carbonate species in aqueous solution was investigated by comparing its structure parameters with those of the complex preserved in a crystal structure. The U(IV) carbonate complex in the crystal structure was identified as a [U(CO)] anionic complex. This monomeric anion complex forms a network with charge compensating Na+ cations and HO ligands. U L3-edge EXAFS spectra were collected from the solid Na[U(CO)]12HO and the corresponding solution. The obtained data indicate the identity of the [U(CO)] complex in solid and solution states. The high negative charge of the [U(CO)] anionic complex is compensated by Na+ cations. In the solid state the Na+ cations form a bridging network between the [U(CO)] anion complex, while in the liquid state they seem to be located closer at the anionic complex anion.
Hennig, C.*; Kraus, W.*; Emmerling, F.*; Ikeda, Atsushi; Scheinost, A. C.*
Inorganic Chemistry, 47(5), p.1634 - 1638, 2008/02
Times Cited Count:29 Percentile:74.39(Chemistry, Inorganic & Nuclear)Uranium(IV) sulfate species in an aqueous solution and in the solid state has been investigated by extended X-ray absorption fine structure and X-ray diffraction. The coordination polyhedron was found to comprise unidentate and bidentate sulfate ions, and water molecules both in the aqueous solution phase and in the solid state.