In this report we have disclosed the syntheses and properties of two new conjugated organic moieties bearing the same coordination sites but possessing different backbone rigidities and rotational flexibilities. Two new metallopolymers have been synthesized from the corresponding ligands under identical reaction conditions, and they have been thoroughly characterized through different techniques to understand the effect of backbone rigidity on the evolution of different properties in these metallopolymers. A FESEM micrograph of the rigid metallopolymer confirms the formation of a rigid nanorod type structure, while long agglomerated nanofiber strands are visible on the substrate in the case of the flexible analogue. All of the newly synthesized materials are fluorescence active. An Fe(II) metallopolymer of the flexible ligand showed huge changes in emission properties in the presence of different acids and showed a possibility of it being used as a thin film acid vapor sensor. All of the materials showed reversible electrochemical activity, and both of these polymers have shown electroluminescence when an appropriate potential is applied.

中文翻译：

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刚性和柔性骨架N-给体多齿共轭配体的酸响应性发光Fe（II）金属聚合物的合成和表征。

在这份报告中，我们公开了两个新的共轭有机部分的合成和性质，这些部分具有相同的配位点，但具有不同的骨架刚性和旋转柔性。在相同的反应条件下，由相应的配体合成了两种新的金属聚合物，并已通过不同的技术对其进行了全面表征，以了解骨架刚性对这些金属聚合物中不同性能演变的影响。刚性金属聚合物的FESEM显微照片证实了刚性纳米棒型结构的形成，而在柔性类似物的情况下，在基材上可见长的团聚纳米纤维股。所有新合成的材料都具有荧光活性。柔性配体的Fe（II）金属聚合物在存在不同酸的情况下显示出发射特性的巨大变化，并显示出其可用作薄膜酸蒸气传感器的可能性。所有材料均显示出可逆的电化学活性，并且当施加适当的电势时，这两种聚合物均显示出电致发光。