This dataset is associated with "Two-dimensional diboron trioxide crystal composed by boroxol groups", T. Zio, M. Dirindin, C. Di Giorgio, M. Thaler, B. Achatz, C. Cepek, I. Cojocariu, M. Jugovac, T. O. Mentes, A. Locatelli, L. L. Patera, A. Sala, G. Comelli, M. Peressi, C. Africh, submitted in 2025. It is divided into two distinct folders. The first, "Atomic_Coordinates", includes the atomic coordinates of the main structural models considered in this work. In particular, the atomic coordinates of the models in figure S3A and the main model presented in figure 3A of the paper. The second, "Experimental_Dataset", includes the experimental data used to produce the figures in the article. This folder is further divided into three folders, one for each figure of the article. Inside every subfolder, all raw data is presented. Every data is accompanied by the relative metadata in txt format.