219486-35-8Relevant academic research and scientific papers
Structural and spectroscopic comparisons of tris(2- (diphenylphosphino)ethyl)aminecopper(I) tetraphenylborate, [(NP3)Cu](BPh4), with gold(I) and silver(I) [(NP3)M]X (X = BPh4, NO3, PF6) complexes
Fackler Jr., John P.,Forward, Jennifer M.,Grant, Tiffany,Staples, Richard J.
, p. 151 - 160 (1998)
The ligand tris(2-(diphenylphosphino)ethyl)amine (NP3) reacts with CuCl in CH2Cl2 to produce the monomeric complex [(NP3)Cu](BPh4), (1). Unlike the Au(I) and Ag(I) derivatives, this material is weakly 4-coordinate with a trigonal CuP3 coordination and somewhat long Cu-N bonding to the tertiary N atom. Compound 1 crystallizes in the monoclinic space group P21/n (No. 14) with cell constants: a = 21.068(8) A, b = 18.546(2) A, c = 31.523(6) A, β = 107.02(2)°and Z = 8. Refinement of 12572 reflections and 1075 parameters yields R = 0.0927 and Rw = 0.1980. This structure completes the Cu, Ag, Au triad of NP3 complexes. The 3-coordinate mononuclear and binuclear Au(I) NP3 complexes, [(NP3)Au]X (X = BPh4, PF6, NO3) and [(NP3)2Au2]X2 (X = BPh4, PF6), all show a brilliant luminescence under UV radiation. This emission has been studied in detail and is attributed to a metal-centered P(z) → (d(x2-y2), d(xy)) transition. The Cu(I) complex is not luminescent in the visible spectral region.
