Understanding the Role of Noncovalent Interactions in Gas Sensing with Metal-Coordinated Complexes (MCCs)

IF 8.8 2区化学 Q1 Chemistry

Topics in Current Chemistry Pub Date : 2025-10-06 DOI:10.1007/s41061-025-00530-y

Brij Mohan

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引用次数: 0

Abstract

Gas sensing is vital for environmental monitoring, safety, and healthcare. This review highlights the role of noncovalent interactions, hydrogen bonding, π–π stacking, and electrostatic forces in enhancing the sensitivity and selectivity of metal-coordinated complexes (MCCs) in gas sensors. These reversible interactions enable rapid, real-time detection through measurable changes in properties. For example, hydrogen bonding in amino-functionalized metal–organic frameworks (MOFs) enhances the detection of ammonia, and π–π stacking in phthalocyanine films aids in identifying aromatic volatile organic compounds (VOCs) such as benzene. Open metal sites in frameworks allow electrostatic gas binding, affecting electrical resistance, while perturbing the coordination sphere in porphyrins enables optical sensing. This review encompasses MCC platforms, ranging from Schiff base complexes to 3D MOFs and 2D materials, and highlights their tunable properties for gases such as VOCs, CO₂, SO₂, and CH₄, as well as other gases. Despite the advantages of reversibility and quick response, challenges include environmental stability and complex interactions. Future directions involve integrating machine learning for data analysis and developing durable hybrid materials to improve sensing performance technology.

Graphical Abstract

This review examines how noncovalent interactions, such as hydrogen bonds and π–π stacking, contribute to enhanced gas sensing in metal-coordinated complexes (MCCs), boosting sensitivity and selectivity. It compares MCCs based on Schiff bases, phthalocyanines, and frameworks with covalent systems, and discusses the challenges in understanding mechanisms and integrating device development

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了解非共价相互作用在金属配合物（mcc）气敏中的作用。

气体传感对于环境监测、安全和医疗保健至关重要。本文综述了非共价相互作用、氢键、π-π堆叠和静电力在提高金属配位配合物（mcs）在气体传感器中的灵敏度和选择性方面的作用。这些可逆的相互作用可以通过可测量的属性变化实现快速、实时的检测。例如，氨基功能化金属有机框架（MOFs）中的氢键增强了对氨的检测，酞菁膜中的π-π堆叠有助于识别芳香族挥发性有机化合物（VOCs），如苯。框架中的开放金属位点允许静电气体结合，影响电阻，而干扰卟啉中的配位球可以实现光学传感。这篇综述涵盖了MCC平台，从希夫碱配合物到3D mof和2D材料，并强调了它们对VOCs、CO2、SO2和CH4等气体以及其他气体的可调特性。尽管具有可逆性和快速响应的优势，但挑战包括环境稳定性和复杂的相互作用。未来的发展方向包括整合机器学习数据分析和开发耐用的混合材料，以提高传感性能技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Topics in Current Chemistry 化学-化学综合

CiteScore

11.70

自引率

1.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Topics in Current Chemistry provides in-depth analyses and forward-thinking perspectives on the latest advancements in chemical research. This renowned journal encompasses various domains within chemical science and their intersections with biology, medicine, physics, and materials science. Each collection within the journal aims to offer a comprehensive understanding, accessible to both academic and industrial readers, of emerging research in an area that captivates a broader scientific community. In essence, Topics in Current Chemistry illuminates cutting-edge chemical research, fosters interdisciplinary collaboration, and facilitates knowledge-sharing among diverse scientific audiences.