Bis(2,6-bis[3-(2,4,6-trimethylphenyl)pyrazol-1-yl-kappaN2]pyridine-kappaN)cobalt(II) dinitrate at 290 and 150 K.
The title compound, [Co(C(29)H(29)N(5))(2)](NO(3))(2), contains a six-coordinate high-spin Co(II) ion with approximate local D(2d) symmetry. The bond lengths and angles at cobalt undergo only small changes between the two temperatures, which confirms that the Co(II) ion does not undergo a spin-state transition over this temperature range.
Halcrow
Malcolm A
MA
School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, England. m.a.halcrow@chem.leeds.ac.uk
Kilner
Colin A
CA