A novel seven-coordinate technetium(IV) complex: Synthesis and characterization of [TcO(tpen)](2+) (tpen = N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine)

Yoshimura T; Kawai M; Takayama T; Sekine T; Kudo H; Shinohara A

Chemistry Letters, Vol.34, No.12, 1624-1625, 2005

DOI10.1246/cl.2005.1624 Export Citation

A novel seven-coordinate technetium(IV) complex: Synthesis and characterization of [TcO(tpen)](2+) (tpen = N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine)

Yoshimura T, Kawai M, Takayama T, Sekine T, Kudo H, Shinohara A

The 1:1 reaction of [TcOCl4](-) with tpen (tpen = N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine) led to the formation of [TcO(tpen)](2+) which is the first example both of seven-coordinate technetium(IV) and oxotechnetium(IV). The coordination geometry of the Tc(IV) ion is a monocapped trigonal prism.