ChemInform Abstract: PREPARATION, CHARACTERIZATION, AND CRYSTAL, MOLECULAR, AND ELECTRONIC STRUCTURE OF (H2EDTA)99TCIV(μ‐O)299TCIV(H2EDTA).CNTDOT.5H2O. A 2.33‐Å TC‐TC DISTANCE WHICH MAY REPRESENT A Σ2Π2Δ*2 BOND

Abstract

Ausgehend von Ammoniumpertechnetat wird über einen Kationenaustauscher HTcO4 dargestellt, das mit dem Dinatriumsalz von EDTA in Gegenwart von NaHSO3 im Überschuß bei 70‐80°C die Titelverbindung (I) liefert (Keine Ausb.‐Angabe).

Structural Investigation of Technetium Dibutylphosphate Species Using X-ray Absorption Fine Structure Spectroscopy

“…In order to evaluate this hypothesis, the EXAFS spectrum was fitted using the scattering paths calculated in a putative {Tc 2 O 2 (PO 4 ) 4 } fragment (a) (Figure 2). The fragment (a) was constructed using the {Tc−O−P} and {Tc 2 O 2 } metrics extracted from [TcCl 4 (TPPO) 2 ] 37 and [Tc 2 O 2 (HEDTA) 2 • 6H 2 O], 38 respectively. The acronyms TPPO and HEDTA stand for triphenylphosphine oxide and hydroxyethyl-ethylenediaminetriacetic acid, respectively.…”