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Updated: May 27, 2026

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
Published on: December 27, 2018
Rationally designed phthalocyanines having their main absorption band beyond 1000 nm
Nagao Kobayashi1, Taniyuki Furuyama, Koh Satoh
1Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan. nagaok@m.tohoku.ac.jp
Abstract:
Highly air-stable phthalocyanines (Pcs) having their main absorption band beyond 1000 nm have been synthesized using main-group elements as peripheral and central (core) substituents. The resultant [(PhS)(8)PcP(OMe)(2)][PF(6)] and [(PhSe)(8)PcP(OMe)(2)][PF(6)] show a single Q-band peak at 1018 and 1033 nm, respectively, which was achieved by carefully taking into account the spectroscopic properties of Pcs and the characteristics of the frontier orbitals. The large red shift can be considered to originate from synergistic effects involving both the group-15 and -16 elements.
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