近日，深圳职业技术大学霍夫曼先进材料研究院Peng Guo团队研究了等网状间苯二甲酸钛配位聚合物的孔工程。2025年4月21日出版的《德国应用化学》杂志发表了这项成果。

通过化学环境改性进行孔隙工程对于开发工业多孔材料至关重要。了解等网状多孔配位聚合物中取代的影响，如空间位阻、振动能力、电子影响和亲水性，是阐明结构-性质关系的关键。然而，由于当前方法的局限性，准确评估官能团对性能的影响仍然具有挑战性。

研究组设计了一系列具有不同官能团的间苯二甲酸钛配位聚合物来调节孔特性和结构维度。间苯二甲酸酯及其官能团的独特空间排列和电子分布为应对这些挑战提供了理想的平台。

研究组进行了广泛的研究，将实验方法与计算模拟相结合，探索孔工程如何影响这些化合物的吸附分离和光响应行为。该发现不仅解决了同构钛配位聚合物的合成挑战，还为理解通过调节其化学环境实现的结构-性质关系提供了新的见解。

附：英文原文

Title: Pore engineering in isoreticular titanium-isophthalate coordination polymers

Author: Sujing WANG, Qingqing Yan, Chenyang Nie, Valentin Diez Cabanes, Fu-An Guo, Yafei Du, Hailun Xia, Hao Wang, Guillaume Maurin, Peng Guo

Issue&Volume: 2025-04-21

Abstract: Pore engineering through chemical environment modification is vital for developing industrial porous materials. Understanding the effects of substitutions in isoreticular porous coordination-polymers—such as steric hindrance, vibrational capabilities, electronic influences, and hydropathy—is key to elucidating structure-property relationships. However, accurately assessing the impact of functional groups on properties remains challenging due to limitations in current methodologies. In this study, we designed a series of titanium-isophthalate coordination-polymers with various functional groups to regulate pore characteristics and structural dimensionality. The unique spatial arrangement and electronic distribution of isophthalate and its functional groups provide an ideal platform to address these challenges. We conducted extensive investigations combining experimental methods with computational simulations to explore how pore engineering affects adsorptive separation and photoresponsive behavior in these compounds. Our findings not only tackle the synthesis challenge of isostructural titanium-coordination polymers but also offer new insights into understanding structure-property relationships achieved through modulation of their chemical environments.

DOI: 10.1002/anie.202503618

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202503618