Novel method for preparing stable near-infrared absorbers: a new phthalocyanine family based on rhenium(i) complexes. Issue 89 (8th October 2020)

• Record Type: Journal Article
• Authors: Murata, Kei; Koike, Yosuke; Ishii, Kazuyuki
• Is Part Of: Chemical communications. Volume 56:Issue 89(2020)
• Page Start: 13760
• Page End: 13763
• Publication Date: 2020-10-08
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc04625f
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Unsymmetric coordination of the electron-deficient Re(i ) unit(s) to the phthalocyanine ring concomitantly realized intense absorption in the near-infrared region and the improvement of tolerance to oxidation. Abstract : Rational design of near-infrared (NIR) absorbing molecules is crucial for developing photofunctional materials. Here, we synthesized dinuclear and mononuclear Re(i ) tricarbonyl phthalocyanine complexes that exhibit a sharp intense Q band in the NIR region. The unsymmetric coordination of electron-deficient metal unit(s) concomitantly produced a remarkable red shift of the Q band and improved the tolerance of the phthalocyanine ring to oxidation. This study presents a simple and effective strategy for the construction of NIR absorbers with high stability.