Journal
CRYSTAL GROWTH & DESIGN
Volume 12, Issue 6, Pages 2730-2735Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cg300218z
Keywords
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Funding
- National Science Foundation of China [21031002, 51073079]
- 973 Program of China [2012CB821700]
- Natural Science Fund of Tianjin, China [10JCZDJC22100]
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Two new metal organic frameworks (MOFs), [Zn-2(OH)(cpia)(bipy)(0.5)](n) (1) and {[Zn-7(OH)(2)(HOMe)(2)(cpia)(4)(bib)]center dot 5H(2)O}(n) (2) (bib = 1,4-bis(imidazol-1-yl)benzene, H(3)cpia = 5-(4-carboxyphenoxy)isophthalic acid, bipy = 4,4'-bipyridine), have been solvothermally synthesized and structurally characterized. Both of them are based on zinc clusters as secondary building units (SBUs). Compound 1 presents an interesting three-dimensional 2-fold interpenetrated (3,8)-connected network constructed from tetranuclear [Zn-4(OH)(2)](6+) clusters with (4(3))(2)(4(6).6(18).8(4)) topology, while compound 2 can be described as a (3,14)-connected framework built from an unprecedented heptanuclear [Zn-7(OH)(2)(HOMe)(2)](12+) cluster with {(4(20).6(52).7(6).8(13))(4(3))(4)) topology. Detailed structural comparison of two compounds indicated that coligands play significant roles in tuning the nuclearity of metal clusters and the connectivity of specific networks. Furthermore, the thermal stabilities and luminescence properties of two compounds reveal that they all exhibit high thermal stability and strong luminescence emission bands in the solid state at room temperature.
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