Auxiliary Ligand Selection Effects on Coordination Polymer Performance: Design Principles and Optimization
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Abstract
Coordination polymers represent a rapidly expanding class of crystalline materials with diverse applications in catalysis, sensing, gas storage, and magnetic devices. The strategic selection of auxiliary ligands plays a crucial role in determining the structural topology, electronic properties, and functional performance of these materials. This comprehensive review examines the fundamental principles governing auxiliary ligand effects on coordination polymer architecture and performance optimization. Through systematic analysis of recent developments in ligand design strategies, we demonstrate how auxiliary ligand selection influences metal coordination environments, framework stability, and resulting material properties. The study reveals that proper auxiliary ligand choice can enhance catalytic efficiency, improve sensing capabilities, and optimize magnetic behavior through controlled structural modifications. Key findings indicate that flexible biphenyltetracarboxylic acid systems exhibit adaptive regulation capabilities, while pyridyl-based auxiliary ligands enable fine-tuning of electronic properties. Furthermore, the incorporation of nitrogen heterocycles as auxiliary components significantly impacts framework porosity and guest molecule interactions. These insights provide essential guidelines for rational design of next-generation coordination polymers with tailored functionalities.
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