Crystal structure of {2-[({2-[(2-amino-ethyl)amino]-ethyl}imino)-meth-yl]-6-hy-droxy-phenolato-κ(4) N,N',N'',O (1)}(nitrato-κO)copper(II) ethanol 0.25-solvate.

Shabana Noor,Suhail Sabir,Sarvendra Kumar,Rüdiger W Seidel,Richard Goddard

doi:10.1107/s205698901501960x

Abstract

In the crystal structure of the title mononuclear CuII complex, [Cu(C11H16N3O2)(NO3)]·0.25C2H5OH, the complex molecules are linked by N—H⋯O and O—H⋯O hydrogen bonds, forming a dimer with an approximate non-crystallographic twofold rotation axis of symmetry. In the monomeric unit, the Cu2+ ion exhibits a distorted square-pyramidal configuration, whereby the anionic [HL]− Schiff base ligand binds in a tetradentate fashion via the O and the three N atoms which all are approximately coplanar. The O atom of a nitrate anion occupies the fifth coordination site, causing the CuII atom to move slightly out of the approximate basal plane toward the bound nitrate group. The structure exhibits disorder of the ethanol solvent molecule.

Highlights

[Cu(C11H16N3O2)(NO3)]0.25C2H5OH, the complex molecules are linked by N—H O and O—H O hydrogen bonds, forming a dimer with an approximate non-crystallographic twofold rotation axis of symmetry
The Cu2+ ion exhibits a distorted square-pyramidal configuration, whereby the anionic [HL] Schiff base ligand binds in a tetradentate fashion via the O and the three N
Schiff base ligands and their metal complexes have been the subject of research covering a vast area of metallo–organic as well as bio–inorganic chemistry (Osterbere, 1974; Patterson & Holm, 1975)

Summary

Introduction

[Cu(C11H16N3O2)(NO3)]0.25C2H5OH, the complex molecules are linked by N—H O and O—H O hydrogen bonds, forming a dimer with an approximate non-crystallographic twofold rotation axis of symmetry. In the crystal structure of the title mononuclear CuII complex, CuII atom to move slightly out of the approximate basal plane toward the bound nitrate group.

Results

Conclusion