205488-18-2Relevant academic research and scientific papers
Synthesis and structural characterization of dialkyldithiocarbamato complexes of niobium
Fernandez-Baeza, Juan,Jalon, Felix A.,Otero, Antonio,Rodrigo-Blanco, Ma. Esther,Etienne, Michel
, p. 769 - 773 (2007/10/03)
The reaction of alkyne-containing niobium(III) complexes [NbCl3(dme)(RC≡CR′)] (dme = 1,2-dimethoxyethane) with the appropriate Na(S2CNR″2) reagents, in a 1:3 molar ratio, afforded the corresponding dialkyldithiocarbamato complexes [Nb(RC≡CR′)(S2CNR″2)3] (R = R′ = Ph, R″ = Me 1; R = R′ = Ph, R″ = Et 2; R = R′ = R″ = Me 3; R = R′ = Me, R″ = Et 4; R = R′ = Et, R″ = Me 5; R = R′ = R″ = Et 6; R = R′ = SiMe3, R″ = Me 7; R = R′ = SiMe3, R″ = Et 8; R = Ph, R′ = Me, R″ = Me 9). The same complexes were also prepared from the reaction of the appropriate [NbCl3(bpzm)(RC≡CR′)] [bpzm = bis(pyrazol-l-yl)methane] complexes with the corresponding sodium dialkyldithiocarbamates. All complexes were spectroscopically characterized and the dynamic behaviour of some of them was studied by variable-temperature NMR techniques. The molecular structure of complex 9 was also established.
