Novel lead(II) carboxylate-arsonate hybrids
Novel lead(II) carboxylate-arsonate hybrids
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DOI：
10.1016/j.jssc.2008.03.002
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发表时间：
2008-06
影响因子：
3.3
通讯作者：
Fei-Yan Yi;Junling Song;Na Zhao;J. Mao
中科院分区：
文献类型：
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作者：
Fei-Yan Yi;Junling Song;Na Zhao;J. Mao
乙酸铅（II）与苯胂酸（H2L1）（或4-羟基-3-硝基苯胂酸，H3L2）和5-磺基间苯二甲酸单钠盐（NaH2SIP）（或1,3,5-苯三甲酸（H3BTC））作为第二金属连接体的水热反应提供了三种新型混合配体 羧酸铅(II)-胂酸盐，即Pb5(SIP)2(L1)2(H2O) 1、Pb3(SIP)(L2)(H2O) 2和Pb(H2L2)(H2BTC) 3。1的结构具有复杂的3D网络，由2D双层磺基间苯二甲酸铅(II)和1D铅(II)链桥接组成 胂酸沿着b轴，形成沿着b轴的大隧道，这些隧道被胂酸配体的苯环占据。在图 2 中，Pb(II) 离子通过 {L2}3− 阴离子桥接成 2D 双层，而 Pb(II) 离子通过桥接和螯合 SIP 阴离子互连形成 2D 双层。上述两个建筑单元的交叉链接导致了复杂的3D网络。在图 3 中，Pb(II) 离子通过桥接 {H2L2}- 和 {H2BTC}- 阴离子相互连接，形成 a 轴下方的一维双链。这些 1D 链通过非配位羧酸基团和胂酸氧之间的氢键进一步互连成 3D 超分子结构。
Hydrothermal reactions of lead(II) acetate with phenylarsonic acid (H2L1) (or 4-hydroxy-3-nitrophenylarsonic acid, H3L2) and 5-sulfoisophthalic acid monosodium salt (NaH2SIP) (or 1,3,5-benzenetricarboxylic acid (H3BTC)) as the second metal linkers afforded three novel mixed-ligand lead(II) carboxylate–arsonates, namely, Pb5(SIP)2(L1)2(H2O) 1, Pb3(SIP)(L2)(H2O) 2 and Pb(H2L2)(H2BTC) 3. The structure of 1 features a complicated 3D network composed of 2D double layers of lead(II) sulfoisophthalate bridged by 1D chains of lead(II) arsonates along b-axis, forming large tunnels along b-axis which are occupied by phenyl rings of the arsonate ligands. In 2, the Pb(II) ions are bridged by {L2}3−anions into a 2D double layer whereas the interconnection of the Pb(II) ions via bridging and chelating SIP anions gave a 2D double layer. The cross-linkage of the above two building units leads to a complicated 3D network. In 3, the interconnection of the Pb(II) ions via bridging {H2L2}−and {H2BTC}−anions leads to a 1D double chain down a-axis. These 1D chains are further interconnected via hydrogen bonds among non-coordination carboxylate groups and arsonate oxygens into a 3D supramolecular architecture.