S1 Supporting information: Methanol triggered ligand flip isomerization in a binuclear copper(I) complex and the luminescence response Yang-Juan Li, Zhi-Ying Deng, Xue-Fei Xu, Hua-Bin Wu, Ze-Xing Cao and Quan-Ming Wang* State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China qmwang@xmu.edu.cn Electronic Supplementary Material (ESI) for Chemical Communications This journal is © The Royal Society of Chemistry 2011