Gogoll, AdolfOlsson, SandraBenito Pérez, Óscar2016-07-222016-07-222016-06-22https://hdl.handle.net/2445/100763Treballs Finals de Grau de Química, Facultat de Química, Universitat de Barcelona, Any: 2016, Tutors: Adolf Gogoll i Sandra OlssonPhoto-switchable molecules undergo configurational changes between two or more isomeric states upon irradiation by light. One of those photo-switchable molecules is stiff-stilbene. It is used in many applications in a wide range of fields from material science to biologic systems. In some of these applications stiff-stilbene is the backbone of cyclic molecules. In this project, a model system was designed introducing different length linkers between stiff-stilbene aromatic rings. The main aim is to study the dependence of photo-isomerization properties on the linker length. A good synthetic route to target molecules was planned and followed giving moderate to good yields. The photo-switching study of the target molecules revealed that the linker length has a large impact on the photo-isomerization process. NMR spectroscopy was used to follow the progress of the isomerization130 p.application/pdfengcc-by-nc-nd (c) Benito, 2016http://creativecommons.org/licenses/by-nc-nd/3.0/es/ÈtersIsomeritzacióTreballs de fi de grauEthersIsomerizationBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess