Bernhard M. Kriesche1, Laura E. Kronenberg1, Felix R. Purtscher1 and Thomas S. Hofer1* 1University of Innsbruck, Austria Provisionally accepted: The final, formatted version of the article will be published soon. As a consequence of the accelerated climate change, solutions to capture, store and potentially activate carbon dioxide received increased interest in recent years. Herein, it is demonstrated, that the neural network potential ANI-2x is able to describe nanoporous organic materials at approx.