Syntheses, characterization and properties of manganese, cobalt and copper complexes from chelate N-donor ligands

• Cl−, OH−, and I−μ2-bridged dinuclear complexes
• non-centrosymmetric dinuclear complexes
• non-linear optical, and ferroelectric and magnetic properties

2-[(S)-4-isopropyl-2-oxazolyl]quinoline (L1) and 2-[(S)-4-phenyl − 2-oxazolyl]quinoline (L2) react with manganese, cobalt and copper salts to yield four new complexes: [Mn2(L1)2]Cl2 (1), {[Co(L1)2]2(OH)}(ClO4)3 (2), [Cu2I2(L1)2] (3), and {[Cu(L2)2]2(OH)}(BF4)3·H2O (4), which were fully characterized by single-crystal and powder X-ray diffraction, IR, elemental and thermogravimetric analyses. Complexes 1–4 all show dinuclear structure. Two metal ions are bridged by Cl− in 1, by OH– in 2 and 4, and by I− in 3. Moreover, non-linear optical, and ferroelectric and magnetic properties have been investigated.

2-[(S)-4-isopropyl-2-oxazolyl]quinoline (L1) and 2-[(S)-4-phenyl − 2-oxazolyl]quinoline (L2) react with manganese, cobalt and copper salts to yield four new complexes. Non-linear optical, and ferroelectric and magnetic properties have been investigated.Figure optionsDownload as PowerPoint slide