Synthesis,structure and magnetic properties of Ni2(NO3)4(APTY)4 (APTY=1,5-dimethyl-2-phenyl-4-{[(1 E )-pyridine-4-ylmethylene]amino}-1,2-dihydro-3 H -pyrazol-3-one) |
| |
Abstract: | A novel dinuclear nickel(II) complex Ni2(NO3)4(APTY)4 (1) (APTY?=?1,5-dimethyl-2-phenyl-4-{(1E)-pyridine-4-ylmethylene]amino}-1,2-dihydro-3H-pyrazol-3-one), was synthesized by solvothermal reaction of Ni(NO3)2?·?6H2O with APTY in methanol at 353?K. The structure consists of centrosymmetric dimers resulting from octahedrally coordinated Ni atoms bridged by APTY ligands. Weak intermolecular interactions (C–H?···?N, C–H?···?O hydrogen bonding, C–H?···?π and π–π stacking interactions) are responsible for a supramolecular assembly of molecules in the lattice. Magnetic measurements over 1.8–300?K show weak antiferromagnetic coupling between Ni(II) ions with J?=?2.969?cm?1, g?=?2.280, θ?=??5.903. |
| |
Keywords: | Schiff base Ni(II) complex Crystal structure Supramolecular assembly Magnetic properties |
|
|