Conformation dynamics of non-, singly- and doubly-N-fused [28]hexaphyrins revealed by photophysical studies |
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| Authors: | Lim Jong Min Inoue Mitsunori Sung Young Mo Suzuki Masaaki Higashino Tomohiro Osuka Atsuhiro Kim Dongho |
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| Institution: | Spectroscopy Laboratory for Functional π-electronic Systems and Department of Chemistry, Yonsei University, Seoul 120-749, Korea. |
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| Abstract: | Conformational flexibility and balance between M?bius aromatic and Hückel antiaromatic conformers in 28]hexaphyrins depend on N-fused structure and meso-aryl substituents, revealed by various spectroscopic methods. In particular, the existence of the two conformers has been confirmed for singly-N-fused 28]hexaphyrins by femtosecond time-resolved transient absorption spectroscopy. |
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