title: Diversification of hydrothermal reaction products induced by temperature: syntheses, structures and properties of four La(III)-Cu(II) metal frameworks constructed from rod-shaped molecular building blocks.
abstract: The hydrothermal reaction of La(III), Cu(II) and 5-nitroisophthalic acid (H2NIPH) at different temperatures produced four novel coordination polymers, [LaCu(NIPH)(ONIPH)(H2O)4].H2O (1), [La2Cu(NIPH)4(H2O)6] (2), [La2Cu(NIPH)4(H2O)2] (3) and [LaCu(NIPH)2(HNIPH)(H2O)2].2H2O (4), (HONIPH = 2-hydroxy-5-nitroisophthalate), these 2D and 3D frameworks are the first La(III)-Cu(II) heterometallic frameworks based on infinite rod-shaped molecular building blocks. In 1, a 2D layer is composed of infinite La-O-C-O-Cu rods consisting of alternating [La2O14(CO2)2] and [Cu2O8] units by corner sharing. The 3D frameworks of 2-4 are constructed from different rod-shaped molecular building blocks, which are linked by NIPH ligands to form a pcu-type rod packing arrangement. Interestingly, HONIPH came from the in situ hydroxylation of H2NIPH in the hydrothermal reaction.
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 158 Zhongshan Road, Dalian 116012, P. R. China. junweiye@dlut.edu.cn
authors.forename: Junwei
authors.initials: J
authors.lastname: Ye
authors.forename: Jingying
authors.initials: J
authors.lastname: Zhang
authors.forename: Ling
authors.initials: L
authors.lastname: Ye
authors.forename: Dong
authors.initials: D
authors.lastname: Xie
authors.forename: Tao
authors.initials: T
authors.lastname: Xu
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Guiling
authors.initials: G
authors.lastname: Ning