Synthesis, crystal structures, and fluorescence properties of two dinuclear cadmium(II) complexes derived from N-isopropyl-N′-(1-pyridin-2- ylethylidene)ethane-1,2-diamine

摘要

A new tridentate pyridyl Schiff base, N-isopropyl- N′-(1-pyridin-2- ylethylidene)ethane-1,2-diamine (L), was used to synthesize two dinuclear cadmium(II) complexes, [Cd _2L _2(l _1, _1-N _3) _2(N _3) _2] (1) and [Cd _2L _2(l _1, _3-NCS) _2(NCS) _2] (2). X-ray single crystal structure determination reveals that in both centrosymmetric complexes, the Cd atom is in a distorted octahedral coordination. In the crystal structures of 1 and 2, the dinuclear cadmium(II) complex molecules are linked, respectively, through intermolecular N-H...N and N-H..S hydrogen bonds to form infinite 1D chains. The preliminary fluorescence properties of the complexes were investigated.