Resumen: Rearrangements and their control are a hot topic in supramolecular chemistry due to the possibilities that these phenomena open in the design of synthetic receptors and molecular machines. Macrocycle aza-scorpiands constitute an interesting system that can reorganize their spatial structure depending on pH variations or the presence of metal cations. In this study, the relative stabilities of these conformations were predicted computationally by semi-empirical and density functional theory approximations, and the reorganization from closed to open conformations was simulated by using the Monte Carlo multiple minimum method. Idioma: Inglés DOI: 10.3390/ijms17071131 Año: 2016 Publicado en: International Journal of Molecular Sciences 17, 7 (2016), [9 pp.] ISSN: 1661-6596 Factor impacto JCR: 3.226 (2016) Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 54 / 166 = 0.325 (2016) - Q2 - T1 Categ. JCR: BIOCHEMISTRY & MOLECULAR BIOLOGY rank: 116 / 287 = 0.404 (2016) - Q2 - T2 Factor impacto SCIMAGO: 1.235 - Medicine (miscellaneous) (Q1) - Physical and Theoretical Chemistry (Q1) - Computer Science Applications (Q1) - Inorganic Chemistry (Q1) - Spectroscopy (Q1) - Organic Chemistry (Q1) - Molecular Biology (Q2) - Catalysis (Q2)