%0 Generic %A Freiría, Alberto %A Bastida, Rufina %A del Carmen Fernández-Fernández, M %A Macías, Alejandro %A Valencia, Laura %A Vicente, Manuel %D 2005 %T Pentanuclear Ba(II) Complex of a Macrocyclic Ligand %U https://acs.figshare.com/articles/dataset/Pentanuclear_Ba_II_Complex_of_a_Macrocyclic_Ligand/3300127 %R 10.1021/ic048704n.s001 %2 https://acs.figshare.com/ndownloader/files/5137861 %K Macrocyclic Ligand %K ClO %K H 0.375 L 2 %K CH %K metal ions %K Ba 5 %K H 2 L 2 %K N atoms %K crystal structure %K OH %X We report here the first pentanuclear Ba(II) complex of a new tri-aza, tri-oxa macrocycle with two carboxymethyl “arms” pending from two N atoms, H2L2. The crystal structure corresponds to the formula [Ba5(H0.375L2)4(ClO4)(CH3CH2OH)(H2O)2](ClO4)2.5·9.5H2O and reveals the presence of four molecules of the ligand surrounding five Ba(II) ions, giving rise to an unusual structure with the metal ions inside a spherical organic cavity. %I ACS Publications