Synthesis, crystal structures, magnetic properties and fluorescent emissions of two-dimensional bimetallic coordination frameworks FeII(3-fluoropyridine)2-[AuI(CN)2]2 and MnII(3-fluoropyridine)2[AuI(CN)2]2
Synthesis, crystal structures, magnetic properties and fluorescent emissions of two-dimensional bimetallic coordination frameworks FeII(3-fluoropyridine)2-[AuI(CN)2]2 and MnII(3-fluoropyridine)2[AuI(CN)2]2
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二维双金属配位骨架FeII(3-氟吡啶)2-[AuI(CN)2]2和MnII(3-氟吡啶)2[AuI(CN)2]2的合成、晶体结构、磁性和荧光发射
DOI：
10.1016/j.poly.2008.11.006
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发表时间：
2009
期刊：
影响因子：
2.6
通讯作者：
T. Kitazawa
中科院分区：
文献类型：
--
作者：
T. Kosone;C. Kanadani;Toshiaki Saito;T. Kitazawa
合成了新的二维(2D)双金属配位聚合物{FeII(3-氟吡啶)2[AuI(CN)2]2}n(1)，{MnII(3-氟吡啶)2[AuI(CN)2]2}n(2)，并用单晶X射线分析、红外光谱和元素分析对其结构进行了表征。这两种配合物相互同构，形成二维{MII[AuI(CN)2]2}(M=Fe，Mn)片状网络结构，包括菱形{M4II[AuI(CN)2]4}，称为类Hofmann结构。这两种结构都通过Au-Au相互作用表现出双层连接。已经发现了显示两步自旋转变的络合物1。然而，只有1在高自旋态(293K)下的结构被完全解决。因此，在本报告中，完全解决了1在100%低自旋态(80K)和50%低自旋态(123K)的高质量晶体数据。还研究了2的磁性和293K时的结构。此外，我们还发现这两种化合物在室温下都表现出很强的荧光发射。
New interesting two-dimensional (2D) bi-metallic coordination polymers {FeII(3-fluoropyridine)2[AuI(CN)2]2}n(1), {MnII(3-fluoropyridine)2[AuI(CN)2]2}n(2) were synthesized and characterized by using single-crystal X-ray analysis and IR and elemental analyses. Both complexes are isostructural to each other and construct 2D {MII[AuI(CN)2]2} (M=Fe, Mn) sheet network structures, including the rhombus {M4II[AuI(CN)2]4}, which are called Hofmann-like structure. Both structures exhibit bilayer connections via Au–Au interactions. Complex 1 which shows two-step spin transition has been already found. However, only the structure of 1 in high-spin state (293K) was completely solved. Therefore, in this report, the high quality of crystal data of 1 in 100% low-spin state (80K) and 50% low-spin state (123K) are completely solved. Also magnetic property of 2 and structure of 2 at 293K have been studied. Furthermore, we have found that both compounds show strong fluorescent emissions in the solid state at room temperature.