Citation: In Chung; Christos D. Malliakas; Joon I. Jang; Christian G. Canlas; David P. Weliky; Mercouri G. Kanatzidis (2007). Helical Polymer 1/\\infty[P2Se62-]: Strong Second Harmonic Generation Response and Phase-Change Properties of Its K and Rb Salts. Journal of the American Chemical Society, 129, pp. 14996-15006.