83691-47-8Relevant articles and documents
Co-ordination Chemistry of Arenediazoate Anions: Synthesis and X-Ray Crystallographic Characterisation of η-Cyclopentadienyl-(anti-p-nitrobenzenediazoato-N)(triphenylphosphine)nickel(II),
Lalor, Fergus J.,Desmond, Timothy J.,Ferguson, George,Seew, Pik Y.
, p. 1981 - 1986 (2007/10/02)
Sodium anti-p-nitrobenzenediazoate reacts with (3), the first authenticated example of an arenediazoato-complex.Crystals of complex (3) are triclinic space group P1, with two molecules in a unit cell of dimensions a=7.822(1), b=9.618(1), c=19.011(2) Angstroem, α=79.57(1), β=80.96(1), γ=109.04(1) deg, and Z=2.The structure was solved by the heavy-atom method and refined by full-matrix least-squares calculations.All hydrogen atoms were located from difference syntheses.Final R=0.043 for 2763 reflections with l>2?(l).The arenediazoato-ligand has an anti configuration and co-ordinates to nickel via N(1) in a monohapto-fashion.The atoms of the NiONNC6H4 moiety are close to being coplanar.Principal dimensions include Ni-N(1) 1.901 (4), Ni-P 2.166(1), Ni-C(cyclopentadienyl) 2.103(6)-2.187(7), and Ni...O(1) 2.784(4) Angstroem.The structural data are interpreted in terms of significant contributions from both diazoate and N-nitrosoamine anion resonance structures to the ground state of the co-ordinated arenediazoato-ligand.
