100207-25-8Relevant academic research and scientific papers
Phosphinothioic Organylamidato Complexes 2Ni, Planar-Tetrahedral Chelates with Metal-Nitrogen-Sulfur Chromophores
Fuchs, Manfred,Kuchen, Wilhelm,Peters,Wilfried
, p. 1569 - 1580 (2007/10/02)
Reaction of -Li+ with NiHal2 in inert solvents gave extremely hydrolyzable complexes 2Ni (R = Me, iPr, tBu, cHex, Ph) 3a-f containing four-membered chelate rings and NiN2S2 chromophores.It is shown by magnetic measurements, electronic and 31P NMR spectroscopy that 3d (R=tBu) is purely tetrahedral over a wide range of temperature as well in the solid state as in solution.In solutions of the other compounds 3, there exists an equilibrium planar tetrahedral, the latter isomer prevailing with larger R and with increasing temperature. 3a and 3b (R = Me, Et) are almost entirely planar at room temperature.In solid state 3a is most probably pentacoordinated and 3c a mixture of both isomers, while 3e is tetrahedral and 3f planar.
