Citation: Li, Shun-Li; Lan, Ya-Qian; Qin, Jun-Sheng; Ma, Jian-Fang; Liu, Jie; Yang, Jin (2009). Assembly of 3D Metal-Organic Frameworks Based on Different Helical Units: Chiral and Achiral Structures Constructed by Length-Modulated N-Donor Ligands. Crystal Growth & Design, 9, pp. 4142-.