Syntheses, Crystal Structures and Properties of Two New Compounds from a Flexible Bipodal Acid with Additional Amide Groups

Two novel compounds {[Cu(IBG)(4,4'-bipy)(H2O)(2)](2)center dot 11H(2)O}(n)(1) and {[Co(IBG)(mu-H2O)(H2O)(2)]center dot 2H(2)O}(n)(2) based on isophthaloylbisglycine (H(2)IBG) have been synthesized and structurally characterized by thermogravimetric analysis, elemental analysis and single-crystal X-ray diffraction. Compound 1 shows a 1D chain sine/cosine chain structure, and compound 2 can be characterized as a 4-connected sql tetragonal planar network with the point symbol of {4(4)center dot 6(2)}. Compound 2 has been characterized by magnetic measurements. In addition, 1 and 2 display an interesting reversible crystal-to-amorphous transformation.