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首页> 外文期刊>RSC Advances >Assembly of a series of zinc coordination polymers based on 5-functionalized isophthalic acids and dipyridyl
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Assembly of a series of zinc coordination polymers based on 5-functionalized isophthalic acids and dipyridyl

机译：基于5-官能间苯二甲酸和二吡啶基的一系列锌配位聚合物的组装

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To investigate the influence of different 5-functionalized isophthalate ligands on the self-assembly and structures of Zn( II )-based coordination polymers (CPs), we selected four 5-functionalized isophthalate ligands coordinated with 4,4′-bipyridyl (bpy) and Zn( II ) salt, and four new CPs, namely, {[Zn(EtOip)(bpy)]·2H _(2) O} _( n ) ( 1 ), {[Zn(PrOip)(bpy)]·2H _(2) O} _( n ) ( 2 ), [Zn( ~( n ) BuOip)(bpy)] _( n ) ( 3 ) and [Zn( ~( n ) PeOip)(bpy)] _( n ) ( 4 ) (where EtOip = 5-ethoxyisophthalate, PrOip = 5- n -propoxyisophthalate, ~( n ) BuOip = 5- n -butoxyisophthalate and ~( n ) PeOip = 5- n -pentyloxyisophthalate), were prepared under hydrothermal conditions. Moreover, we considered changing the features of the N-ligands (length), which are expected to alter the structural diversities and properties of the resultant CPs. We used 1,2-bis(4-pyridyl)ethene (bpe) to replace bpy; and obtained four new coordination polymers (CPs), namely, {[Zn(EtOip)(bpe)]·H _(2) O} _( n ) ( 5 ), {[Zn(PrOip)(bpe)]·H _(2) O} _( n ) ( 6 ), {[Zn( ~( n ) BuOip)(bpe)]·0.5DMF} _( n ) ( 7 ) and [Zn( ~( n ) PeOip)(bpe)] _( n ) ( 8 ). All of these compounds were characterized by single crystal X-ray diffraction, infrared spectroscopy, elemental analysis and powder X-ray diffraction measurements. Single-crystal X-ray analysis reveals that the structure of complexes 1–4 are very similar, although different functionalized-isophthalate ligands are employed. Complexes 5 , 6 and 7 possess a two-dimensional (2D) layered structure, and the 2D framework of complexes 5 and 7 can be rationalized to be a threefold interpenetrating four-connected {4 ~(4) ·6 ~(2) } topological sql network, while 6 exhibits a twofold interpenetrating 4-connected 2D framework. Compound 8 features a 6-connected 3D topology net based on a novel bimetallic unit [(Zn) _(2) (CO _(2) ) _(2) ] linked by mixed ~( n ) PeOip and bpe ligands. Moreover, thermal and photoluminescence properties of the synthesized complexes were also studied in detail.
机译：为了研究不同的5-官能化间苯二甲酸酯配体对基于Zn（II）的配位聚合物（CP）的自组装和结构的影响，我们选择了四个与4,4'-联吡啶（bpy）配位的5-官能化间苯二甲酸酯配体。和Zn（II）盐，以及四个新的CP，即{[Zn（EtOip）（bpy）]·2H _（2）O} _（n）（1），{[Zn（PrOip）（bpy）] ·2H _（2）O} _（n）（2），[Zn（〜（n）BuOip）（bpy）] _（n）（3）和[Zn（〜（n）PeOip）（bpy）] _（n）（4）（其中EtOip = 5-乙氧基间苯二甲酸酯，PrOip = 5-正丙氧基间苯二甲酸酯，〜（n）BuOip = 5-正丁氧基间苯二甲酸酯，〜（n）PeOip = 5-正戊氧基间苯二甲酸酯）在热液条件下。此外，我们考虑了改变N-配体（长度）的特征，这有望改变所得CP的结构多样性和特性。我们使用1,2-双（4-吡啶基）乙烯（bpe）代替bpy;并获得了四个新的配位聚合物（CP），即{[Zn（EtOip）（bpe）]·H _（2）O} _（n）（5），{[Zn（PrOip）（bpe）]·H _（2）O} _（n）（6），{[Zn（〜（n）BuOip）（bpe）]·0.5DMF} _（n）（7）和[Zn（〜（n）PeOip）（ bpe）] _（n）（8）。所有这些化合物都通过单晶X射线衍射，红外光谱，元素分析和粉末X射线衍射测量来表征。单晶X射线分析表明，配合物1-4的结构非常相似，尽管使用了不同的官能化间苯二酸酯配体。配合物5、6和7具有二维（2D）分层结构，可以将配合物5和7的2D框架合理化为三重互穿的四连接{4〜（4）·6〜（2）}拓扑sql网络，而6则表现出双重互穿的4连接2D框架。化合物8具有6连接的3D拓扑网络，该网络基于通过混合的〜（n）PeOip和bpe配体连接的新型双金属单元[（Zn）_（2）（CO _（2））_（2）]。此外，还详细研究了合成配合物的热和光致发光性质。

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