title: Syntheses, crystal structures and properties of novel copper(II) complexes obtained by reactions of copper(II) sulfate pentahydrate with tripodal ligands.
abstract: Three novel metal-organic frameworks (MOFs), [Cu(1)SO4].H2O (4), [Cu2(2)2(SO4)2].4H2O (5) and [Cu(3)(H2O)]SO4.5.5H2O (6), were obtained by hydrothermal reactions of CuSO4.5H2O with the corresponding ligands, which have different flexibility. The structures of the synthesized complexes were determined by single-crystal X-ray diffraction analyses. Complex 4 has a 2D network structure with two types of metallacycles. Complex 5 also has a 2D network structure in which each independent 2D sheet contains two sub-layers bridged by oxygen atoms of the sulfate anions. Complex 6 has a 2D puckered structure in which the sulfate anions serve as counter anions, which are different from those in complexes 4 (terminators) and 5 (bridges). The different structures of complexes 4, 5 and 6 indicate that the nature of organic ligands affected the structures of the assemblies greatly. The magnetic behavior of complex 5 and anion-exchange properties of complex 6 were investigated.
authors.affiliation: Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhao
authors.forename: Jian
authors.initials: J
authors.lastname: Fan
authors.forename: You
authors.initials: Y
authors.lastname: Song
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kawaguchi
authors.forename: Taka-aki
authors.initials: TA
authors.lastname: Okamura
authors.forename: Wei-Yin
authors.initials: WY
authors.lastname: Sun
authors.forename: Norikazu
authors.initials: N
authors.lastname: Ueyama