journal article·2025-12Open access

Raman Marker Bands for In Situ Quality Control During Synthesis of 2D Conjugated Metal–Organic Frameworks

Fanny Reichmayr, Daniel Wolf, Geping Zhang, Mingchao Wang, Max Herzog, Renhao Dong, Xinliang Feng, Axel Lubk, Inez M. Weidinger

Advanced Materials Interfaces· Volume 12· Issue 24

Abstract

Abstract Reproducibility in the synthesis of complex materials such as metal–organic frameworks (MOFs) remains a major challenge. Under seemingly identical experimental conditions, a distribution of MOF crystals with different structural properties is obtained, resulting in a heterogeneous performance. For quality assurance, analytical techniques and protocols are needed to predict MOF crystal quality already during the synthesis process. In this work, in situ Raman spectroscopy is used to monitor the formation of 2D phthalocyanine‐based MOFs at the air–water interface. Raman marker bands are identified that visualise the competing processes of linker aggregation and MOF formation. Using transmission electron microscopy (TEM) measurements on the MOF crystals after synthesis, a correlation between the Raman marker bands and the resulting crystalline domain size distribution of the MOF can be derived. This noninvasive, fast, and simple in situ quality assessment method marks a significant step toward automated MOF synthesis.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Covalent Organic Framework Applications · Machine Learning and ELM

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Chair of Electrochemistry Faculty of Chemistry and Food Chemistry Technische Universität Dresden Zellescher Weg 19 01069 Dresden Germany

Leibniz Institute for Solid State and Materials Research Dresden Helmholtzstraße 20 01069 Dresden Germany

Chair of Molecular Functional Materials Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstraße 4 01069 Dresden Germany

Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education School of Chemistry and Chemical Engineering Shandong University Jinan 250100 China

Department of Chemistry & Materials Innovation Institute for Life Sciences and Energy MILES, HKU‐SIRI) University of Hong Kong Hong Kong 999077 China

Max Planck Institute of Microstructure Physics Weinberg 2 06120 Halle/Saale Germany

Institute of Solid State and Materials Physics Technische Universität Dresden Haeckelstr. 3 01069 Dresden Germany

Funding

Deutsche Forschungsgemeinschaft

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