Inorganic Chemistry, Vol.53, No.14, 7083-7085, 2014
Two Elongated Octahedral Coordination Cages Constructed by M-4-TC4A Secondary Building Units (M = Co-II and Fe-II) and 2,2'-Bipyridine-4,4'-dicarboxylic Acids
Two nanoscale coordination cages based on M-4-TC4A (M = Co-II and Fe-II; H(4)TC4A = p-tert-butylthiacalix[4]arene) and 2,2'-bipyridine-4,4'-dicarboxylic acid (H(2)bpdc) have been synthesized and characterized. In these isostructural structures, there are two kinds of shuttlecock-like M-4-TC4A secondary building units, {M-4(TC4A)(Cl)} and {M-4(TC4A)(SO4)}, which have different coordination environments and are bridged by bpdc molecules into an elongated octahedron through a [6 + 8] condensation. The gas sorption and magnetic properties were studied.