ZnII and CdII Metal Organic Frameworks Based on 2‐Methyl‐6‐oxygen‐1,6‐dihydro‐3,4'bipyridine‐5‐carbonitrile,Zeitschrift für anorganische und allgemeine Chemie

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ZnII and CdII Metal Organic Frameworks Based on 2‐Methyl‐6‐oxygen‐1,6‐dihydro‐3,4'bipyridine‐5‐carbonitrile
Zeitschrift für anorganische und allgemeine Chemie ( IF 1.1 ) Pub Date : 2020-12-01 , DOI: 10.1002/zaac.201900260
Dong‐Yang Liu ₁ , Xiao‐Xia Ren ₁ , Xiao‐Min Ning ₁ , Mei‐Hua Lin ₁ , Yuan‐Di Wu ₁ , Jing Qian _{1,

2,

3}

Affiliation

To investigate the coordination chemistry of modbc (2‐methyl‐6‐oxygen‐1,6‐dihydro‐3,4'‐bipyridine‐5‐carbonitrile) with Zn^II and Cd^II salts under the solvothermal conditions, six new MOFs with the formulas [Zn(modbc)₂(mpa)]_n (1), [Zn(modbc)(mpa)(H₂O)]_n (2), [Zn(modbc)(pa)_0.5(H₂O)]_n (3), [Cd(modbc)(pa)_0.5(H₂O)]_n (4), [Zn(modbc)₂(tpa)]_n (5), and [Cd(modbc)₂(pda)(H₂O)]_n (6) (mpa = m‐phthalic acid; pa = pyromellitic acid; tpa = terephthalic acid; pda = pentane diacid) were successfully synthesized by solvothermal reaction and fully characterized by elemental analysis, IR spectroscopy, single crystal, powder X‐ray diffraction, thermal and photoluminescence properties. Though MOFs 3 and 4 have the same structure, we have obtained three different kinds of coordination configurations by the X‐ray diffration analysis. Compared with 1 and 2, coordination water has no effect on the solid fluorescence emission of MOFs. It is worth noting that the fluorescence intensity of 3 containing central Zn^II atoms is very strong, whereas that of isomorphism 4 containing central Cd^II atoms has almost no fluorescence emission, showing that metal ions have very important influence on the fluorescence emission. Further, we found that solvents had an important effect on the fluorescence emission in liquid fluorescence of MOFs 1–6.

中文翻译：

基于2-甲基-6-氧-1,6-二氢-3,4'联吡啶-5-腈的ZnII和CdII金属有机骨架

为了研究在溶剂热条件下modbc（2-甲基-6-氧-1,6-二氢-3,4'-联吡啶-5-腈）与Zn ^II和Cd ^II盐的配位化学，六个新的MOF与式[Zn（modbc）₂（mpa）] _n（1），[Zn（modbc）（mpa）（H ₂ O）] _n（2），[Zn（modbc）（pa）_0.5（H ₂ O）] _n（3），[Cd（modbc）（pa）_0.5（H ₂ O）] _n（4），[Zn（modbc）₂（tpa）] _n（5），和[CD（modbc）₂（PDA）（H ₂ O）] _Ñ（6）（MPA =米-邻苯二甲酸; PA =苯均四酸; TPA =对苯二甲酸; PDA =戊烷二酸）成功地被溶剂热合成反应并通过元素分析，红外光谱，单晶，粉末X射线衍射，热和光致发光特性进行全面表征。尽管MOF 3和MOF 4具有相同的结构，但通过X射线衍射分析，我们获得了三种不同的协调配置。与1和2相比，配位水对MOF的固体荧光发射没有影响。值得注意的是，含有中心Zn ^II原子的3的荧光强度非常强，而含有中心Cd ^II原子的同构4的荧光强度几乎没有荧光发射，表明金属离子对荧光发射有非常重要的影响。此外，我们发现，溶剂对在MOFs材料的液体荧光的荧光发射的一个重要效果1 - 6。

更新日期：2021-01-14

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