1 New J. Chem. Supporting Information Crystallographic data New diphenyl diselenides o-substituted by O(S, Se)-caranyl skeleton synthesis and application in asymmetric reactions by Jacek Ścianowski *a , Agata J. Pacuła a , Mariola Zielińska-Błajet b , Andrzej Wojtczak c a Department of Organic Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Torun,7 Gagarin Street, 87-100 Torun, Poland b Department of Organic Chemistry, Faculty of Chemistry, Wroclaw University of Technology, 27 Wybrzeze Wyspianskiego Street, 50-370 Wroclaw, Poland c Department of Crystallochemistry and Biocrystallography, Faculty of Chemistry, Nicolaus Copernicus University in Torun, 7 Gagarin Street, 87-100 Torun,Poland E-mail: jsch@chem.umk.pl Electronic Supplementary Material (ESI) for New Journal of Chemistry. This journal is © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2016