A 3D (3,8)-connected net based on the tetranuclear Cu4 units constructed from mixed organic ligands

• A polynuclear Cu(II) complex constructed from mixed ligands is described.
• Complex 1 displays a 3D (3,8)-connected tfz-d net based on Cu4 units.
• The magnetic and thermal properties of complex 1 are investigated.

Under hydrothermal conditions, a new polynuclear Cu(II) complex, [Cu2(nip)(ina)(μ3-OH)]2·H2O (1) (H2nip = 5-nitroisophthalic acid, Hina = isonicotinic acid) has been synthesized with mixed organic ligands. Single crystal X-ray analysis reveals that complex 1 displays a three-dimensional (3D) structure based on the tetranuclear Cu4 units. In the structure of 1, two pairs of symmetry-related Cu(II) ions are connected by six carboxyl and two μ3-OH groups to generate the tetranuclear Cu4 units, which are connected by the mixed ligands into a 3D framework. Topology analysis reveals a (3,8)-connected tfz-d net for 1. Magnetic studies display antiferromagnetic behavior for 1. And thermogravimetric analysis of 1 has also been investigated.

This paper reports a tetranuclear Cu(II) complex with a (3,8)-connected tfz-d net based on the tetranuclear Cu4 units, which displays antiferromagnetic interactions among the Cu(II) centers.Figure optionsDownload as PowerPoint slide