87761-83-9Relevant academic research and scientific papers
New oxotechnetium(V) complexes of N,N′-ethylenebis(acetylacetone imine), N,N′-ethylenebis(salicylideneamine), and o-phenylenebis(salicylideneamine). X-ray structures of the complexes of N,N′-ethylenebis(acetylacetone imine) and N,N′-ethylenebis(salicylideneamine)
Jurisson, Silvia,Lindoy, Leonard F.,Dancey, Keith P.,Mcpartlin, Mary,Tasker, Peter A.,Uppal, Daljit K.,Deutsch, Edward
, p. 227 - 231 (2008/10/08)
New technetium(V) oxo complexes of tetradentate Schiff base ligands have been synthesized and characterized. X-ray structure determination shows that the N,N′-ethylenebis(acetylacetone iminato) complex [TcO(H2O)(C12H18N2O 2)]+ has a distorted octahedral coordination geometry, containing a trans-oxoaquatechnetium(V) core. Such a trans-TcO(OH2)3+ core is intermediate between the previously well-characterized monooxo, TcO3+, and trans-dioxo, TcO2+, cores. The complex was isolated as a mixed chloride/bromide salt [TcO(H2O)(C12H18N2O 2]Br0.25Cl0.75, which crystallizes in the triclinic space group P1 with a = 10.935 (4) ?, b = 9.877 (4) ?, c = 7.324 (3) ?, α = 87.266 (9)°, β = 102.498 (12)°, γ = 97.845 (9)°, and R = 0.0215 for 2370 diffractometer data with I ≥ 3σ(I). The N,N′-ethylenebis(salicylideneaminato) complex [TcOCl(C16H14N2O2)] also has a pseudooctahedral coordination geometry but contains a trans-oxochlorotechnetium(V) core and crystallizes in space group P212121 with a = 26.653 (11) ?, b = 11.697 (5) ?, c = 10.529 (3) ?, and R = 0.0642 for 2105 diffractometer data with I ≥ 3σ(I).
