Two Interpenetrated and Polycatenated Zn(Ⅱ) Coordination Polymers: Syntheses, Structures and Luminescent Properties

摘要

Two fascinating Zn(Ⅱ) entangled coordination polymers,[Zn(eoba)(bbi)]n·nH2O (1) and [Zn(boba)(bbi)1/2]n (2),(bbi =1,1'-(1,4-butanediyl)-bis(imidazole),H2eoba =4,4'-(ethane-1,2-diyldioxy)-dibenzoic acid,H2boba =4,4'-(butane-1,4-diyldioxy)-dibenzoic acid),were obtained by hydrothermal technology and characterized by elemental analysis,infrared spectrum,thermogravimetric analysis and single-crystal X-ray diffraction.1 is a rare 2D → 3D example with a 3-fold parallel interpenetration and polycatenaned architecture.2 features a scarce 2D → 2D example with a 3-fold parallel interpenetrating network which possesses polyrotaxane and polycatenane characters.Moreover,the luminescent properties of 1 and 2 have been discussed.