This deliverable is about a successful collaboration between Dr. Kęstutis Aidas and Dr. Dovilė Lengvinaitė from the Vilnius University (Lithuania), and prof. Aatto Laaksonen, from the Stockholm University (Sweden), which started through an HPC-Europa3 transnational access visit. This collaboration produced important results concerning intermolecular structure of mixtures composed of imidazolium based ionic liquid and water.