New dimeric supramolecular structure of mixed (phthalocyaninato)(porphyrinato)europium(III) sandwiches: preparation and spectroscopic characteristics
New dimeric supramolecular structure of mixed (phthalocyaninato)(porphyrinato)europium(III) sandwiches: preparation and spectroscopic characteristics
复制标题
混合(酞菁)(卟啉)铕(III)三明治的新型二聚超分子结构：制备和光谱特性
DOI：
10.1039/b300529a
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发表时间：
2003
影响因子：
--
通讯作者：
Jianzhuang Jiang
中科院分区：
文献类型：
--
作者：
M. Bai;Meng Bao;Chang;D. Arnold;Michael T. M. Choi;D. Ng;Jianzhuang Jiang
混合双层Eu[Pc（15 C5）4]（TPP）
(1)通过碱催化的4，5-二氰基苯并-15-冠-5四聚反应，得到了一种新型的配合物Eu（TPP）（acac）
(acac=乙酰丙酮化物）作为模板。对于比较研究，混合的三层络合物Eu 2 [Pc（15 C5）4]（TPP）2
(2)和Eu 2 [Pc（15 C5）4]2（TPP）
(3)也是通过逐层上升的方法合成的。这些混合环夹心配合物的特点是通过各种光谱方法。循环伏安法（CV）和微分脉冲伏安法（DPV）显示了四个单电子氧化和两个单电子还原。电子吸收光谱和红外光谱表明，在钾离子存在下，双层分子1和三层分子3在甲醇/二氯甲烷中形成了超分子二聚体（SM 1和SM 3）。
The mixed double-decker Eu[Pc(15C5)4](TPP)
(1) was obtained by base-catalysed tetramerisation of 4,5-dicyanobenzo-15-crown-5 using the half-sandwich complex Eu(TPP)(acac)
(acac = acetylacetonate), generated in situ, as the template. For comparative studies, the mixed triple-decker complexes Eu2[Pc(15C5)4](TPP)2
(2) and Eu2[Pc(15C5)4]2(TPP)
(3) were also synthesised by the raise-by-one-story method. These mixed ring sandwich complexes were characterised by various spectroscopic methods. Up to four one-electron oxidations and two one-electron reductions were revealed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). As shown by electronic absorption and infrared spectroscopy, supramolecular dimers (SM1 and SM3) were formed from the corresponding double-decker 1 and triple-decker 3 in the presence of potassium ions in MeOH/CHCl3.