The effect of mixed amines on the competitive formation of two open-framework zinc phosphates with 16-ring large channels

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• 作者：You-Wei Yao ; Guang-Zhen Liu ; Shou-Tian Zheng ; Guo-Yu Yang
• 关键词：Open-framework ; Phosphates ; Mixed-templated synthesis ; Hydro-/solvo-thermal synthesis
• 刊名：Microporous and Mesoporous Materials
• 出版年：2008
• 出版时间：1 July 2008
• 年：2008
• 卷：112
• 期：1-3
• 页码：219-224
• 全文大小：706 K

文摘

Two new zinc phosphates, Zn₆P₈O₂₆(OH)₆[H₃dien]₂ (I) and Zn₆P₈O₂₉(OH)₃[H₃dien]₃ (II) (dien = diethylenetriamine), were solvothermally synthesized in the presence of a mixture of organic amines. Both two structures are built by the alternate linkages between ZnO₄ and (H)PO₄ tetrahedral moieties producing two intimately related (3,4)-connected framework structures with the 16-ring large channels. The successful synthesis of the two compounds illustrates that a specific “secondary” organic additive governs the resulting open-framework structures besides a “primary” organic amine plays a structure-directing role. Crystal data: triclinic, , a = 8.5619(1), b = 13.5037(2), c = 16.9251(1) Å, = 69.545(1)°, β = 89.573(1)°, γ = 86.684(1)°, V = 1830.21(4) ų, Z = 2 for I, and monoclinic, P2₁/c, a = 31.9204(3), b = 8.3759(2), c = 15.7894(3) Å, β = 97.062(1)°, V = 4189.46(13) ų, Z = 4 for II.