[N,N-Bis(3,5-dimethylpyrazol-1-ylmethyl)-1-hydroxy-2-aminoethane](3,5-dimethylpyrazole)copper(II) Diperchlorate

Synthesis and X-Ray Structure of [N,N-Bis(3,5-dimethylpyrazol-1-ylmethyl)-1-hydroxy-2-aminoethane](3,5-dimethylpyrazole) copper(II) dinitrate

“…The Cu-N bond distances are similar to those found in other N,N-bis (pyrazolyl-1-ylmethyl)amine complexes of copper [ 18 , 19 ] and [N,N-bis(3,5-dimethylpyrazol-1-ylmethyl)-1-hydroxy-2-aminoethane](3,5-dimethylpyrazole) copper(II) diperchlorate [ 20 ]. Least-squares planes calculation show that the copper(II) ion lies slightly outside of the plane defined by N1, N3, N5, and N4 toward O1 with a Cu-O distance of 2.304 Å, similar of that observed (2.273 Å) when the oxygen anion is part of a perchlorate moiety [ 20 ].…”

“…If the angles formed by the copper and the three nitrogens of L are similar to those found when the anion is an perchlorate we notice a difference at the level of the apical position and the free pyrazole (L o ) ( Table 2 ) [ 20 ]. The some observations show that the nature of the anion affect the geometry of the copper complex of the flexible ligand L and therefore its catalytic activity in the oxidation of catechol to quinone [ 11 ].…”