A Zeolitic rho-type Chiral Metal-organic Framework Based on L-alanine

One new chiral zeolitic rho-type metal-organic framework [Cd（L-ala）2]n（1） has been successfully synthesized based on L-alanine chiral ligand, which demonstrates the feasibility of fabricating MOF that integrates the 4-connected zeotype topology by the employment of L-alanine. To the best of knowledge, it’s the first report that metal-organic framework based on amino acid features the chiral zeolitic rho-type structure. Compound 1 was characterized by X-ray powder diffraction, elemental analysis and single-crystal X-ray diffraction. Crystal data: C;H;CdN;O;, Mr = 285.55, cubic system, space group I432, a = 24.0795（6）, V = 13961.9（10） ?;, Z = 48, Dc = 1.630 Mg/m;, F（000） = 6672, μ（Mo Kα） = 1.865 mm;, S = 1.058, R = 0.0271 and wR = 0.0312 for 1870 observed reflections with I > 2σ（I）. The circular dichroism（CD） property of compound 1 was also investigated.