首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Synthesis, structure, and luminescence properties of arylpyridine-substituted terpyridine Zn(II) and Cd(II) complexes
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Synthesis, structure, and luminescence properties of arylpyridine-substituted terpyridine Zn(II) and Cd(II) complexes

机译:芳基吡啶取代的联吡啶Zn(II)和Cd(II)配合物的合成,结构和发光性质

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摘要

Two terpyridine derivatives, 4'-(4-(pyridin-4-yl)phenyl)-[2,2':6',2'']terpyridine (L1) and 4'-(4'-(pyridin- 4-yl)-[1,10-biphenyl]-4-yl)-[2,2':6',2'']terpyridine (L2) have been synthesized by palladium-catalyzed cross-coupling reactions, and their metal complexes [Zn(L1)_2](ClO_4)_2·2MeOH·CHCl_3 (1) and [Cd(L2)_2] (ClO_4)_2·DMF-2.8H_2O (2) characterized by single crystal X-ray crystallography and spectroscopic methods including electronic absorption and emission measurements. In the crystalline materials, both metal ions have the expected pseudo-octahedral N_6 coordination environment and the lattice structures appear to be influenced by aromatic-aromatic interactions involving the heteroaryl tails and the pyridyl rings of the terpyridine units. In solution and in the solid state, the complexes display blue emission attributed to an intramolecular charge transfer transition.
机译:两个三联吡啶衍生物4'-(4-(吡啶-4-基)苯基)-[2,2':6',2'']三联吡啶(L1)和4'-(4'-(吡啶-4- )钯催化的交叉偶联反应合成了yl)-[1,10-联苯] -4-yl)-[2,2':6',2'']吡啶(L2),它们的金属配合物[ Zn(L1)_2](ClO_4)_2·2MeOH·CHCl_3(1)和[Cd(L2)_2](ClO_4)_2·DMF-2.8H_2O(2)的特征在于单晶X射线晶体学和包括电子学在内的光谱方法吸收和发射测量。在晶体材料中,两种金属离子均具有预期的伪八面体N_6配位环境,并且晶格结构似乎受涉及杂芳基尾部和三联吡啶单元吡啶环的芳族-芳族相互作用的影响。在溶液和固态下,络合物显示出蓝色发光,这归因于分子内电荷转移跃迁。

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