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

2-[(S)-4-isopropyl-2-oxazolyl]quinoline (L-1) and 2-[(S)-4-phenyl-2-oxazolyl]quinoline (L-2) react with manganese, cobalt and copper salts to yield four new complexes: [Mn-2(L-1)(2)[Cl-2 (1), {[C0(L-1)(2)](2)(OH)}(C10(4))(3) (2), [Cu2I2(L-1)(2)] (3), and {[Cu(L-2)(2)](2)(OH)}(BF4)(3)center dot 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. (C) 2016 Elsevier B.V. All rights reserved.