Citation: Zhengtao Xu; David B. Mitzi; Christos D. Dimitrakopoulos; Karen R. Maxcy (2003). Semiconducting Perovskites (2-XC6H4C2H4NH3)2SnI4 (X = F, Cl, Br): Steric Interaction between the Organic and Inorganic Layers. Inorganic Chemistry, 42, pp. 2031-2039.