Citation: Mei-Chun Chen; Long-Hua Li; Yu-Biao Chen; Ling Chen (2011). In-Phase Alignments of Asymmetric Building Units in Ln4GaSbS9 (Ln = Pr, Nd, Sm, Gd-Ho) and Their Strong Nonlinear Optical Responses in Middle IR. Journal of the American Chemical Society, 133, pp. 4617-4624.