Among various interactions (such as H-bonding, π − π stacking interaction) which are responsible for the fascinating metallo-architectures, cation - π interaction has emerged as a significantly important force. Moreover, it has now been observed that this interaction is found to be presented ubiquitous across several fields of contemporary interest, such as chemistry, material science, and biology. In this work, we have focused on the design and synthesis of a pentacyano organic anion and potassium cation based 3D coordination polymer (5CNP). The single-crystal XRD structure revealed fascinating structural arrangements due to the existence of several intra and interionic interaction. To the best of our knowledge, such polycyano aromatic system based 3D coordination polymer is not reported. In addition to single crystal X-ray diffraction (SCXRD), we have employed confocal Raman microscopic techniques to understand the structural aspects, particularly the pentacyano functional groups which are Raman active. Considering the prospect of 5CNP as a material, thermal stability, and structyral properties have been studied, in addition to detailed photophysical aspects. The photophysical responses in solid and in solution have been studied by steady and time-resolved fluorescence spectroscopy. Interesting photophysical observation is noted when studied in a binary mixture of THF-toluene. Scanning electron microscopy (SEM) studies have also been done for comprehensive understanding. In the end, cytotoxicity studies have been undertaken to evaluate the toxicity of 5CNP in our cells.

在引起引人入胜的金属结构的各种相互作用中（例如H键，π-π堆积相互作用），阳离子-π相互作用已成为一个重要的重要力量。而且，现在已经观察到，这种相互作用被发现在当代感兴趣的几个领域中无处不在，例如化学，材料科学和生物学。在这项工作中，我们专注于基于五元有机阴离子和钾阳离子的3D配位聚合物（5CNP）。由于存在一些内部和离子间相互作用，单晶XRD结构显示出引人入胜的结构排列。据我们所知，尚未报道这种基于聚氰基芳族体系的3D配位聚合物。除了单晶X射线衍射（SCXRD），我们还采用了共聚焦拉曼显微技术来了解结构方面，尤其是具有拉曼活性的五聚氰基官能团。考虑到5CNP作为材料的前景，除了详细的光物理方面，还研究了热稳定性和结构性质。固体和溶液中的光物理响应已通过稳定和时间分辨荧光光谱进行了研究。在THF-甲苯的二元混合物中进行研究时，会注意到有趣的光物理观察。扫描电子显微镜（SEM）研究也已经完成，以便全面理解。最后，进行了细胞毒性研究，以评估我们细胞中的5CNP。