Resonance Raman Study of Tetrakis(p-sulfonatophenyl) porphyrin Diacid (H2+4TSPP) Molecular Aggregates

Dong Ming Chen*, Xiao Yuan Li, Nai Teng Yu, Ying Hui Zhang, Tian Jing He, Fan Zhen Liu

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

Abstract

Polarized resonance Raman spectra of J-aggregated tetrakis(p-sulfonatophenyl) porphyrin diacid (H2+4TSPP) were reported. In addition, resonance Raman spectra of molecular state H2+4TSPP and the free base H2TSPP were also recorded for comparison. The observed Raman bands of the aggregates were assigned based on their isotopic shifts upon deuteration. The low-frequency bands at 81, 119 and 141 cm-1 were assigned to intermolecular lattice modes. The structure alteration of H2+4TSPP induced by the aggregation was evaluated by comparing the resonance Raman spectra of the aggregated H2+4TSPP with those of the molecular state H2+4TSPP. It was deduced that H2+4TSPP in the aggregates is arranged in a face-to-face manner.

Original languageEnglish
Pages (from-to)1101
Number of pages1
JournalGaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities
Volume20
Issue number7
Publication statusPublished - 10 Jul 1999

Keywords

  • Molecular aggregates
  • Porphyrins
  • Resonance raman

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