Synthesis and Structure of a New Layered Zincophosphate Zn6(PO4)5(HPO4)·C8N5H28·5H2O, Intercalated with Quintuply Protonated Tetraethylenepentamine |
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| Authors: | Yunling LiuWang Liu Yan XingZhan Shi Yunlong FuWenqin Pang |
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| Institution: | State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Department of Chemistry, Jinlin University, Changchun, 130023, People's Republic of China |
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| Abstract: | A new two-dimensional zinc phosphate Zn6(PO4)5(HPO4)·C8N5H28·5H2O has been synthesized hydrothermally using tetraethylenepentamine (TEPA) as structure-directing agent and its structure was determined by means of single-crystal X-ray diffraction. The title compound crystallizes in the orthorhombic system, space group Pca21 (No.29) with lattice parameters a=18.6286(12) Å, b=8.0804(5) Å, c=22.5019(15) Å, V= 3387.1(4) Å3, Z=4, R1=0.0389 and wR2=0.0862 4042 observed reflections with I>2σ(I)]. The structure involves a network of ZnO4, PO4, and PO3(OH) tetrahedra forming macroanionic inorganic layers with eight-membered apertures. The charge compensation is achieved by the quintuply protonated TEPA molecule in interlamellar space, which interact with the inorganic layers via hydrogen bonding. |
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| Keywords: | hydrothermal synthesis zinc phosphates structure-directing agent layered structure |
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