Synthesis, characterization and luminescence properties of zinc(II) and cadmium(II) pseudohalide complexes derived from quinoline-N-oxide

Add time:08/03/2019    Source:sciencedirect.com

The synthesis and structural characterization of three new mixed d10 metal pseudohalide complexes with quinoline-N-oxide, namely [Zn(quinoline-N-oxide)6][Zn(NCS)4] (1), [Zn(quinoline-N-oxide)(μ1,1-N3)2]n (2) and [Cd(μ-quinoline-N-oxide)(μN,S-NCS)2]n (3) are reported. Single crystal structure determination reveals that 1 consists of isolated octahedral [Zn(quinoline-N-oxide)6]2+ complex cations and tetrahedral [Zn(NCS)4]2− complex anions. Coordination number 5 around the Zn(II) center is observed in the polymeric chains of 2, where azide groups act in the di-μ1,1 bridging mode. Honeycomb-like layers are formed in 3, where octahedral Cd(II) centers are bridged by the μO,O quinoline-N-oxide molecules and μN,S-isothiocyanate anions. The solid state luminescence properties of the title compounds 1–3 are reported.

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