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Anderson-type polyoxometalate-based complexes constructed from a new ‘V’-like bis-pyridine–bis-amide ligand for selective adsorption of organic dyes and detection of Cr(VI) and Fe(III) ions
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2021-08-24 , DOI: 10.1039/d1qi00785h Yue Zhang 1 , Xiang Wang 1 , Yue Wang 1 , Lei Li 1 , Na Xu 1 , XiuLi Wang 1
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2021-08-24 , DOI: 10.1039/d1qi00785h Yue Zhang 1 , Xiang Wang 1 , Yue Wang 1 , Lei Li 1 , Na Xu 1 , XiuLi Wang 1
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By introducing a new ‘V’-like bis-pyridine–bis-amide ligand 4,4′-bis(4-pyridinecarboxamide)phenylmethane (L) into the reaction system based on Anderson-type polyoxometalates [XMo6(OH)6O18]3− (X = Al or Cr), four metal–organic complexes (MOCs) 1–4, [Zn(HL)(H2O)2(XMo6(OH)6O18)]·5H2O (1: X = Al; 2: X = Cr), [Co(HL)(H2O)2(XMo6(OH)6O18)]·5H2O (3: X = Al; 4: X = Cr), have been prepared under solvothermal conditions, which have been characterized by single crystal X-ray diffraction, IR spectra, and PXRD. All structures of 1–4 involved a 2D layer that originated from XMo6 polyoxoanions and metal ions, on both sides of which the L ligands were hanged. Complexes 1–4 showed not only outstanding selective adsorption capacities for organic dyes crystal violet, methylene blue and neutral red, but also electrochemical sensing behaviors toward Cr(VI) ions and Fe(III) ions with well-pleasing limits of detection of 0.606 nM (6.24 × 10−5 ppm) and 0.0192 μM (1.08 × 10−3 ppm), suggesting their potential application as multifunctional materials.
中文翻译：
Anderson型多金属氧酸盐基复合物由新的“V”样双吡啶-双酰胺配体构成，用于选择性吸附有机染料和检测Cr（VI）和Fe（III）离子
通过在基于 Anderson 型多金属氧酸盐 [XMo 6 (OH) 6 O 18 ] 3− (X = Al 或 Cr), 四种金属有机配合物 (MOCs) 1–4 , [Zn(HL)(H 2 O) 2 (XMo 6 (OH) 6 O 18 )]·5H 2 O ( 1 : X = Al; 2 : X = Cr), [Co(HL)(H 2 O) 2 (XMo 6 (OH) 6 O 18 )]·5H 2 O (3：X=铝；4 : X = Cr)，已在溶剂热条件下制备，已通过单晶 X 射线衍射、红外光谱和 PXRD 表征。1-4 的所有结构都涉及源自 XMo 6多氧阴离子和金属离子的 2D 层，在其两侧挂有 L 配体。配合物1-4不仅对有机染料结晶紫、亚甲蓝和中性红表现出出色的选择性吸附能力，而且对 Cr( VI ) 离子和 Fe( III ) 离子的电化学传感行为具有良好的检测限 0.606 nM (6.24 × 10 -5 ppm) 和 0.0192 μM (1.08 × 10 -3 ppm），表明它们作为多功能材料的潜在应用。
更新日期：2021-08-24
中文翻译：
Anderson型多金属氧酸盐基复合物由新的“V”样双吡啶-双酰胺配体构成，用于选择性吸附有机染料和检测Cr（VI）和Fe（III）离子
通过在基于 Anderson 型多金属氧酸盐 [XMo 6 (OH) 6 O 18 ] 3− (X = Al 或 Cr), 四种金属有机配合物 (MOCs) 1–4 , [Zn(HL)(H 2 O) 2 (XMo 6 (OH) 6 O 18 )]·5H 2 O ( 1 : X = Al; 2 : X = Cr), [Co(HL)(H 2 O) 2 (XMo 6 (OH) 6 O 18 )]·5H 2 O (3：X=铝；4 : X = Cr)，已在溶剂热条件下制备，已通过单晶 X 射线衍射、红外光谱和 PXRD 表征。1-4 的所有结构都涉及源自 XMo 6多氧阴离子和金属离子的 2D 层，在其两侧挂有 L 配体。配合物1-4不仅对有机染料结晶紫、亚甲蓝和中性红表现出出色的选择性吸附能力，而且对 Cr( VI ) 离子和 Fe( III ) 离子的电化学传感行为具有良好的检测限 0.606 nM (6.24 × 10 -5 ppm) 和 0.0192 μM (1.08 × 10 -3 ppm），表明它们作为多功能材料的潜在应用。
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