Synthesis,Structure, and Spectroscopic and Electrochemical Properties of Heteroleptic Bis(phthalocyaninato) Rare Earth Complexes with a C4 Symmetry |
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| Authors: | Yongzhong Bian Rongming Wang Daqi Wang Pehua Zhu Renjie Li Jianmin Dou Wei Liu Chi‐Fung Choi Hoi‐Shan Chan Changqin Ma Dennis&#x;K&#x;P Ng Jianzhuang Jiang |
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| Institution: | Yongzhong Bian,Rongming Wang,Daqi Wang,Pehua Zhu,Renjie Li,Jianmin Dou,Wei Liu,Chi‐Fung Choi,Hoi‐Shan Chan,Changqin Ma,Dennis K. P. Ng,Jianzhuang Jiang |
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| Abstract: | A series of eleven heteroleptic bis(phthalocyaninato) rare earth double‐deckers MIII(pc){pc(α‐OC5H11)4}] 1 – 11 (M=Y, Sm? Lu; pc=phthalocyaninato; pc(α‐OC5H11)4=1,8,15,22‐tetrakis(1‐ethylpropoxy)phthalocyaninato) were prepared as racemic mixtures by MIII(pc)(acac)]‐induced (acac=acetylacetonato) cyclic tetramerization of 3‐(1‐ethylpropoxy)phthalonitrile in the presence of 1,8‐diazabicyclo5.4.0]undec‐7‐ene (DBU) in refluxing pentanol. These compounds could also be prepared by treating MIII(pc)(acac)] with the metal‐free phthalocyanine H2{pc(α‐OC5H11)4} in refluxing octanol. The whole series of double‐decker complexes 1 – 11 were characterized by elemental analysis and various spectroscopic methods. The molecular structures of the Sm, Eu, and Er complexes 1, 2 , and 8 , respectively, were also determined by single‐crystal X‐ray diffraction analysis. The effects of the rare earth ion size on the reaction yield, molecular structure, and spectroscopic and electrochemical properties of these complexes were systematically examined. |
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