Molecular chains: two new isomorphous coordination polymers of oxydiacetate

Abstract Two new isomorphous coordination polymers: [M 2 (μ-H 2 O)(oda) 2 (H 2 O) 2 ] n (where M=Mn(II), 1 , and M=Cd(II), 2 ) have been synthesized under hydro(solvo)thermal reaction conditions, which are characterized by single crystal X-ray determination, IR and thermogravimetric analysis (TGA). Both 1 and 2 have a covalently linked one-dimensional chain structure and are self-assembled from the building units M(oda). Magnetic measurement of 1 indicates weak antiferromagnetic interactions along the carboxylate-bridged Mn(II)–Mn(II) chains. Crystallographic data for 1 , C 8 H 14 Mn 2 O 13 , monoclinic, space group C2/c (no. 15), a =14.831(3) A, b =7.5388(12) A, c =13.068(2) A, β =96.009(2)°, Z =4, V =1453.1(4) A 3 . Crystallographic data for 2 , C 8 H 14 Cd 2 O 13 , monoclinic, space group C2/c (no. 15), a =15.0139(3) A, b =7.5531(3) A, c =13.3505(5) A, β =94.333(2)°, Z =4, V =1509.64(9) A 3 .