Guo-Cong Guo is Professor and Director of the State Key Lab of Structural Chemistry at Fujian Institute of Research on the Structure of Matter (FJIRSM), Chinese Academy of Sciences, P. R. China, currently focusing on the structure-property relationships studies of nonlinear optical, photochromic and nano-catalytic materials. Xiao-Ming Jiang is Professor at Fujian Institute of Research on the Structure of Matter (FJIRSM), Chinese Academy of Sciences, P. R. China, currently focusing on the experimental electronic structure and total scattering techniques for uncovering interesting structural features underneath physical and chemical properties.