116785-35-4Relevant academic research and scientific papers
Effect of pyrazole-substitution on the structure and nuclearity of Cu(II)-pyrazolato complexes
Mezei, Gellert,Raptis, Raphael G.
, p. 3279 - 3288 (2008/10/09)
Trinuclear Cu(II)-pyrazolates of the general formula (Bu4N) 2[Cu3(μ3-Cl)2(μ-4-R-pz) 3Cl3] (pz=pyrazolato anion, R=Cl, Br, I, Me), 1-4, have been prepared and characterized by X-r
Structure of tris(μ-3,5-diphenylpyrazolato-N,N′)tricopper(I). Structural comparisons with the silver(I) and gold(I) pyrazolate trimers
Raptis, Raphael G.,Fackler Jr., John P.
, p. 4179 - 4182 (2008/10/08)
Tris(μ-3,5-diphenylpyrazolato-N,N′)tricopper(I) was synthesized from CuCl and sodium 3,5-diphenylpyrazolate in the presence of 1 molar equiv of AgNO3 and was characterized by single crystal X-ray analysis: triclinic, P1 (No. 2), a = 13.036 (2) A?, b = 14.610 (2) A?, c = 11.674 (2) A?, α = 101.53 (1)°, β = 107.23 (1)°, γ = 100.07 (1)°, V = 2014.5 (6) A?3, Z = 2. It consists of a nonplanar metallacycle containing a nine-membered Cu3N6 ring with long Cu-N bonds averaging 2.081 (7) A?. The Cu?Cu nonbonding distances average 3.339 (1) A?. A comparison of this complex with its isostructural silver and gold analogues showed an unexpected trend in the metal-nitrogen bond lengths with the Au-N bonds being especially short (1.98 A?).
