The infrared and visible absorption spectra of the lowest triplet state of acridine isolated in an argon matrix

Mitchell, Mark B.; Smith, George R.; Jansen, K. L.; Guillory, William A.

doi:10.1016/0009-2614(79)80693-4

Cited by 14 publications

(2 citation statements)

References 16 publications

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“…Its monomer and dimer spectra have been investigated by both matrix-isolation and supersonic jet spectroscopy. Absorption and emission spectra of excited singlet and triplet states were measured in solid hydrocarbon [25][26][27] and Ar [28][29][30] matrices at cryogenic temperatures. IR spectra of monomers in Ar matrices were obtained as well.…”

Section: Introductionmentioning

confidence: 99%

Aggregation of N-Heteropolycyclic Aromatic Molecules: The Acridine Dimer and Trimer

Himmel,

Germer,

Bauer

et al. 2024

Preprint

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Polycyclic aromatic hydrocarbons and their nitrogen-substituted analogues are of great interest for various applications in organic electronics. The performance of such devices is determined not only by the properties of the single molecules, but also by the structure of their aggregates, which often form via self-aggregation. Gaining insight into such aggregation processes is a challenging task, but crucial for a fine-tuning of the materials properties. In this work, an efficient approach for the generation and characterisation of aggregates is described, based on matrix-isolation experiments and quantum-chemical calculations. This approach is exemplified for aggregation of acridine. The acridine dimer and trimer are thoroughly analysed on the basis of matrix-isolation spectroscopy over two spectral ranges and quantum chemical calculations, which agree well with each other. Thereby a novel structure of the acridine dimer is found, which disagrees with a previously reported one. In addition, a structure of the trimer is determined and new insight into the photophysics of small acridine aggregates is gained. Finally, an outlook is given on how even higher aggregates can be made accessible through experiment.

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Section: Introductionmentioning

confidence: 99%

Aggregation of N-Heteropolycyclic Aromatic Molecules: The Acridine Dimer and Trimer

Himmel,

Germer,

Bauer

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Its monomer and dimer spectra have been investigated by both matrix-isolation and supersonic jet spectro-scopy. Absorption and emission spectra of excited singlet and triplet states were measured in solid hydrocarbon [25][26][27] and Ar [28][29][30] matrices at cryogenic temperatures. IR spectra of monomers in Ar matrices were obtained as well.…”

Section: Introductionmentioning

confidence: 99%

Aggregation of N‐Heteropolycyclic Aromatic Molecules: The Acridine Dimer and Trimer

Germer,

Bauer,

Hübner

et al. 2024

Chemistry A European J

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Polycyclic aromatic hydrocarbons and their nitrogen‐substituted analogues are of great interest for various applications in organic electronics. The performance of such devices is determined not only by the properties of the single molecules, but also by the structure of their aggregates, which often form via self‐aggregation. Gaining insight into such aggregation processes is a challenging task, but crucial for a fine‐tuning of the materials properties. In this work, an efficient approach for the generation and characterisation of aggregates is described, based on matrix‐isolation experiments and quantum‐chemical calculations. This approach is exemplified for aggregation of acridine. The acridine dimer and trimer are thoroughly analysed on the basis of experimental and calculated UV and IR absorption spectra, which agree well with each other. Thereby a novel structure of the acridine dimer is found, which disagrees with a previously reported one. The calculations also show the changes from excitonic coupling towards orbital interactions between two molecules with decreasing distance to each other. In addition, a structure of the trimer is determined. Finally, an outlook is given on how even higher aggregates can be made accessible through experiment.

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Time-resolved resonance raman spectroscopy: A retrospect on the early days

Wilbrandt

1996

Biospectroscopy

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The infrared and visible absorption spectra of the lowest triplet state of acridine isolated in an argon matrix

Cited by 14 publications

References 16 publications

Aggregation of N-Heteropolycyclic Aromatic Molecules: The Acridine Dimer and Trimer

Aggregation of N-Heteropolycyclic Aromatic Molecules: The Acridine Dimer and Trimer

Aggregation of N‐Heteropolycyclic Aromatic Molecules: The Acridine Dimer and Trimer

Time-resolved resonance raman spectroscopy: A retrospect on the early days

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