一个晶态铅配位聚合物的合成、晶体结构、剥离及荧光性质（英文）

A Crystalline Pb(Ⅱ) Coordination Polymer: Synthesis, Crystal Structure,Exfoliation and Luminescent Property

通过水热反应合成了1个二维层状结构的铅配位聚合物,[Pb（4-NPA）（H2O）]n（1）（4-H2NPA=4-硝基邻苯二甲酸）。对化合物1进行了红外光谱、元素分析、热重性质以及单晶、粉末X射线衍射表征。在化合物1中,有机配体4-NPA2-阴离子采用（κ-1-κ-1）（κ-2-κ-2）-μ4桥连方式连接了4个Pb（Ⅱ）离子形成一维链状结构,该链状结构再通过1个羧酸基团形成一个二维无机层结构。利用＂自上而下＂的方法将该化合物在甲醇中进行了剥离实验。此外,我们还研究了化合物1的块状样品、剥离样品以及分散在甲醇中的样品的荧光性质。

A novel coordination polymer, [Pb（4-NPA）（H-2O）]-n（1）（4-H-2NPA=4-nitrophthalic acid） with 2D layered structure was obtained via a hydrothermal reaction. Compound 1 has been characterized by IR spectroscopy,elemental analysis, thermogravimetric analysis, single-crystal and powder X-ray diffraction analysis. In 1, the 4-NPA2-anion connects four Pb （Ⅱ） ions with its carboxylate groups in a（κ^1-κ^1）（κ^2-κ^2）-μ-4-bridging mode, forming a one-dimensional chain structure running along the a axis through the oxygen atoms of the carboxylate groups. The neighboring chains are connected through the O-C-O bridges, resulting in an undulating inorganic layered structure in the ab plane. The layers of 1 can be exfoliated in the methanol using a ＂top-down＂ approach. The bulk sample of 1, and the exfoliated sample of 1 as well as its dispersion solution show luminescent properties.CCDC： 1408043.