Unprecedented phthalocyanine-porphyrin-fused oligomers with induced chirality nature

作者：Zhang, Yuehong; Zhao, Luyang; Wang, Kang^*; Jiang, Jianzhuang^*

来源：Inorganic Chemistry Frontiers, 2017, 4(1): 104-109.

DOI：10.1039/c6qi00496b

• OPTICALLY-ACTIVE PORPHYRIN
• SANDWICH-TYPE (NA)PHTHALOCYANINATO
• RARE-EARTH COMPLEXES
• CIRCULAR-DICHROISM
• VIBRATIONAL SPECTROSCOPY
• BINUCLEAR PHTHALOCYANINE
• PHOTOPHYSICAL PROPERTIES
• ABSORPTION
• DIMERS
• SYSTEMS

Optically active binaphthyl units have been introduced onto the periphery of the phthalocyanine chromophores in phthalocyanine-porphyrin-fused oligomers, resulting in the first (R)-and (S)-enantiomers of Pc-Por-fused dimer 1 and trimer 2 with induced chirality nature. This represents the largest chiral tetrapyrrole-based conjugated system, to the best of our knowledge. Electronic absorption, MCD, and CD spectroscopic results in combination with theoretical calculations disclose the effective transfer of the chiral information from the binaphthyl groups to both the central tetrapyrrole-fused chromophores, indicating the effective delocalization of the pi-electron density over the fused systems due to the effective electronic communication between/among the tetrapyrrole chromophores.

• 出版日期2017-1-1
• 单位北京科技大学