Syntheses, structures and properties of chiral dinuclear zinc complexes with Schiff-base ligands

来自 dx.doi.org

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作者：

HR Wen，W Ying，JL Chen，YZ Tang，JS Liao，CM Liu

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摘要：

Two couples of enantiomerically chiral dinuclear zinc complexes, [Zn2(R-L1)3](ClO4)·H2O (1) and [Zn2(S-L1)3](ClO4)·H2O (2), [Zn2(R-L2)3](ClO4) (3) and [Zn2(S-L2)3](ClO4) (4), have been synthesized and characterized. Complexes 14 show both chirality and photoluminescence properties. The strong solid-state emissions are observed at around 490nm for 1 and 2 and 580nm for 3 and 4, respectively, and the emissions of 3 and 4 exhibit obvious red shift relative to 1 and 2. Two couples of chiral dinuclear zinc complexes were synthesized. Complexes 1-4 display both chirality and luminescence properties. The solid-state emissions are observed at around 490 nm for 1, 2, 580 nm for 3, 4. The emission bands of 3 and 4 exhibit obvious red shift relative to 1 and 2.

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关键词：

Experimental/ charge transfer states crystal growth from solution crystal structure excited states fluorescence organic compounds red shift zinc compounds/ S-3-methoxy-6-(((methyl-2-pyridinylmethyl) imino)methyl)-phenol S-L 2 = R- or S-1-((1-(pyridin-2-yl)ethylimino)methyl) naphthalen-2-ol) solid-state fluorescence emissions intraligand charge-transfer excite state red-shift crystal structure [Zn 2(S-L 2) 3](ClO 4) [Zn 2(R-L 2) 3](ClO 4) [Zn 2(S-L 1) 3](ClO 4).H 2O [Zn 2(R-L 1) 3](ClO 4).H 2O Schiff-base ligands chiral dinuclear zinc complexes structural properties temperature 293 K to 298 K/ A8110D Crystal growth from solution A6165 Crystal structure of specific organic compounds A7170M Other bulk localised states A7855K Photoluminescence in organic materials/ temperature 2.93E+02 to 2.98E+02 K