Citation: He, Hua; Zevalkink, Alex; Gibbs, Zachary M.; Snyder, G. Jeffrey; Bobev, Svilen (2012). Synthesis, Structural Characterization, and Physical Properties of the Type-I ClathratesA8Zn18As28(A= K, Rb, Cs) and Cs8Cd18As28. Chemistry of Materials, 24, pp. 3596-.