The solvothermal reaction of metal ions and D-H3pmpc yield three phosphonate-based metal-organic coordination polymers, {Cu(D-Hpmpc)(CH3OH)}n (PMOCP 1), {Cu(D-Hpmpc)}n (PMOCP 2), {Cd2(D-pmpcH)(H2O)2Cl2}n (PMOCP 3) with diversified coordination fashions and dimensional features (D-H3pmpc = (D)-1-(phosphono-methyl)piperidine-3-carboxylic acid). PMOCP 1 exhibits a right-handed helical chain with a pitch of 6.785 Å and interchain O–HO hydrogen-bond. PMOCP 2 displays a chiral 2D network with (4, 4) topology and 1D O–HO hydrogen-bond chain. PMOCP 3 shows a non-interpenetrating diamondoid architecture and various hydrogen-bond interactions. Their chiralities are testified by vibrational circular dichroism spectroscopy and second-order nonlinear optical response measurements. Compared with PMOCPs 1−2, PMOCP 3 has a high water stability, a moderate proton conductivity of 9.87×10-5 S cm-1 at 298K and ~97% RH and a lower activation energy of 0.14 eV.

中文翻译：

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由对映纯有机磷酸酯衍生的一维，二维和三维金属有机配位聚合物：同质性，水稳定性和质子传导

金属离子与D-H3pmpc的溶剂热反应产生了三种基于膦酸酯的金属有机配位聚合物{Cu（D-Hpmpc）（CH3OH）} n（PMOCP 1），{Cu（D-Hpmpc）} n（PMOCP 2 ），{Cd 2（D-pmpcH）（H 2 O）2 Cl 2} n（PMOCP 3），具有多种配位方式和尺寸特征（D-H3pmpc =（D）-1-（膦酰基-甲基）哌啶-3-羧酸）。PMOCP 1展示了一个螺距为6.785Å的右旋螺旋链和链间O–HO氢键。PMOCP 2显示具有（4，4）拓扑和1D O–HO氢键链的手性2D网络。PMOCP 3显示了非互穿的类金刚石结构和各种氢键相互作用。通过振动圆二色光谱和二阶非线性光学响应测量证明了它们的手性。与PMOCP 1-2相比，PMOCP 3具有较高的水稳定性，