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首页> 外文期刊>RSC Advances >Cu(ii)/Ni(ii)–organic frameworks constructed from the homometallic clusters by 5-(2-carboxyphenoxy)isophthalic acid and N-ligand: synthesis, structures and visible light-driven photocatalytic properties
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Cu(ii)/Ni(ii)–organic frameworks constructed from the homometallic clusters by 5-(2-carboxyphenoxy)isophthalic acid and N-ligand: synthesis, structures and visible light-driven photocatalytic properties

机译：Cu（ii）/ Ni（ii）-由5-（2-羧基苯氧基）间苯二甲酸和N-配体由同金属簇构成的有机骨架：合成，结构和可见光驱动的光催化性能

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Four new complexes, namely, Cu _(2) (O-cpia)(btb) _(0.5) ·(OH) ( 1 ), Cu _(3) (O-cpia) _(2) (bpy) _(2) ( 2 ), [Ni _(2) (O-cpia)(phen)·(OH)·H _(2) O]·2H _(2) O ( 3 ) and [Ni _(3) (O-cpia) _(2) (bpy) _(3) ·2H _(2) O]·2H _(2) O ( 4 ) (O-cpia = 5-(2-carboxyphenoxy)isophthalic acid, btb = 1,4-bis(1,2,4-triazol-1-yl)butane, bpy = 4,4′-bipyridine) were successfully isolated under hydrothermal conditions. The four complexes exhibit different architectures constructed from different homometallic clusters varying from mononuclear, binuclear to tetranuclear metal( II ) polyhedra as Second Building Blocks (SBUs). 1 features a 3D framework constructed from the tetranuclear clusters [Cu _(4) (μ _(3) -OH) _(2) ] as SBUs, linked with Cu(1)O _(4) N and Cu(2)O _(5) polyhedra by O-cpia/btb mixed linkers. 2 also exhibits a 3D structure based on trinuclear clusters [Cu _(3) (COO) _(4) ] SBUs, bridged with Cu(1)O _(3) N _(2) and Cu(2)O _(4) polyhedra via O-cpia/bpy mixed ligands. 3 shows a 2D network consisting of tetranuclear clusters [Ni _(4) (μ _(3) -OH) _(2) ] SBUs, which are bridged with Ni(1)O _(4) N _(2) and Ni(2)O _(6) through O-cpia ligands. It is worth noting that 4 , with a 3D structure, is generated from the binuclear clusters [Ni _(2) (COO) _(4) ] (Ni(1)O _(4) N) and mononuclear metal Ni(2) cores (Ni(2)O _(4) N _(2) ) as SBUs, and bridged by O-cpia/bpy mixed ligands. Meanwhile, the degradation of dyes (RhB) by the complexes under visible light irradiation was studied. 1–4 are semiconducting in nature, with E _(g) of 1.30 eV ( 1 ), 1.78 eV ( 2 ), 2.85 eV ( 3 ) and 2.14 eV ( 4 ). Cu( II ) complexes 1 and 2 are highly efficient photocatalysts for the degradation of RhB under visible light irradiation.
机译：四个新的络合物，即Cu _（2）（O-cpia）（btb）_（0.5）·（OH）（1），Cu _（3）（O-cpia）_（2）（bpy）_（ 2）（2），[Ni _（2）（O-cpia）（phen）·（OH）·H _（2）O]·2H _（2）O（3）和[Ni _（3）（ O-cpia）_（2）（bpy）_（3）·2H _（2）O]·2H _（2）O（4）（O-cpia = 5-（2-羧基苯氧基）间苯二甲酸，btb =在水热条件下成功分离了1,4-双（1,2,4-三唑-1-基）丁烷，bpy = 4,4'-联吡啶。四种配合物显示出不同的结构，这些结构由不同的同金属簇构成，从单核，双核到四核金属（II）多面体，作为第二个构建单元（SBU）。图1的特征是由四核簇[Cu _（4）（μ_（3）-OH）_（2）作为SBU构建的3D框架，并与Cu（1）O _（4）N和Cu（2）链接O_（5）多角体，由O-cpia / btb混合连接子组成。图2还展示了基于三核簇[Cu _（3）（COO）_（4）] SBU的3D结构，该SBU与Cu（1）O _（3）N _（2）和Cu（2）O _（ 4）通过O-cpia / bpy混合配体的多面体。图3示出了由四核簇[Ni _（4）（μ_（3）-OH）_（2）] SBU组成的二维网络，它们与Ni（1）O _（4）N _（2）桥接并且Ni（2）O _（6）通过O-cpia配体。值得注意的是，从双核簇[Ni _（2）（COO）_（4）]（Ni（1）O _（4）N）和单核金属Ni（2 ）核心（Ni（2）O _（4）N _（2））作为SBU，并由O-cpia / bpy混合配体桥接。同时，研究了复合物在可见光照射下对染料（RhB）的降解。 1-4本质上是半导体，E _（g）为1.30 eV（1），1.78 eV（2），2.85 eV（3）和2.14 eV（4）。 Cu（II）配合物1和2是用于在可见光照射下降解RhB的高效光催化剂。

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