Four Complexes of Mn(II), Co(II), Ni(II) and Cu(II) Based on 2-Morpholine-4-yl-4,6-di-pyrazol-1-yl-1,3,5-triazine

Three azide bridged complexes, namely, [Mn2L2(N-3)(4)(H2O)(2)] (1), [Co2L2(N-3)(4)]center dot(H2O)(3) (2) and [Ni2L2(N-3)(3)(H2O)]N-3 center dot(H2O)(4) (3) (L = 2-morpholine-4-yl-4,6-di-pyrazol-1-yl-1,3,5-triazine), were synthesized by the reaction of L ligand, sodium azide with Mn(II), Co(II) and Ni(II) chlorides. The copper(II) chloride combined with thiocyanate and L ligand to form a mononuclear complex [CuL(CH3OH)(SCN)(NCS)] (4). Complexes 1 similar to 4 were characterized by IR, elemental analysis and X-ray crystallographic analysis. It was worth noting that two Mn(II) atoms were connected by the end-to-end mode in 1, while Co(II) and Ni(II) atoms were connected by the end-on mode in 2 and 3. In complex 4, the central copper atom was coordinated with a sulfur atom and a nitrogen atom of the two thiocyanate ligands, respectively. Hydrogen bonds, pi-pi stacking interactions, thermogravimetric analysis and fluorescence properties of 1 similar to 4 were studied.

Automated summary

Three azide bridged complexes were synthesized using different metal ions connecting modes. Additionally, a copper(II) complex was successfully prepared, and all complexes were characterized and analyzed for their properties.