Multifunctional Zn(ii)-Yb(iii) complex enantiomers showing second-harmonic generation, near-infrared luminescence, single-molecule magnet behaviour and proton conduction
Multifunctional Zn(ii)-Yb(iii) complex enantiomers showing second-harmonic generation, near-infrared luminescence, single-molecule magnet behaviour and proton conduction
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多功能 Zn(ii)-Yb(iii) 复合对映体表现出二次谐波产生、近红外发光、单分子磁体行为和质子传导
DOI：
10.1039/d0tc03687k
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发表时间：
2020
影响因子：
6.4
通讯作者：
Liu Cai-Ming
中科院分区：
文献类型：
--
作者：
Zhu Shui-Dong;Hu Jun-Jie;Dong Lu;Wen He-Rui;Liu Sui-Jun;Lu Ying-Bing;Liu Cai-Ming
合成了一对基于手性胺酚配体[YbZn 2（SS/RR-L）2（H2O）4]（ClO 4）3·5 H2O（S-1和R-1）[H2 L =（SS/RR）-环己烷-1，2-二基双（氮烷二基）-双（亚甲基）-双（2-甲氧基苯酚）]的多功能Zn（II）-Yb（III）配合物对映体，并对其结构进行了表征.在S-1和R-1中，线性Zn（II）-Yb（III）-Zn（II）金属核通过酚盐氧原子桥接。对映体S-1和R-1显示手性光学活性。配合物S-1在近红外区具有二次谐波和Yb Ⅲ特征发射。磁性研究表明，S-1显示单分子磁体（SMM）行为。此外，S-1在室温和100%相对湿度（RH）下显示出1.55 × 10−4 S cm−1的高质子传导率，这是由手性胺-苯酚配体的NH基团、水分子和高氯酸根阴离子（ClO 4 −）构成的一维氢键链造成的。这五种功能的结合，包括手性，非线性光学，磁性，发光和质子导电性能，在分子基材料中可能提供了巨大的潜力，在智能多功能器件的应用。
A new pair of multifunctional Zn(II)–Yb(III) complex enantiomers based on a chiral amine-phenol ligand, [YbZn2(SS/RR-L)2(H2O)4](ClO4)3·5H2O (S-1 and R-1) [H2L = (SS/RR)-cyclohexane-1,2-diylbis(azanediyl)-bis(methylene)-bis(2-methoxyphenol)], were synthesized and structurally characterized. In S-1 and R-1, the linear Zn(II)–Yb(III)–Zn(II) metal core is bridged by the phenolate oxygen atoms. Enantiomers S-1 and R-1 show chiroptical activity. Complex S-1 exhibits second-harmonic generation (SHG) and YbIII characteristic emissions in the near-infrared (NIR) region. Magnetic studies indicate that S-1 shows single-molecule magnet (SMM) behaviour. Moreover, S-1 displays a high proton conductivity of 1.55 × 10−4 S cm−1 at room temperature under 100% relative humidity (RH), which results from a 1D H-bonded chain constructed by NH groups of the chiral amine-phenol ligand, water molecules and perchlorate anions (ClO4−). The combination of these five-functions, including chiral, nonlinear optical, magnetic, luminescent and proton-conductive properties, in molecule-based materials may provide great potential for application in smart multifunctional devices.