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Peer-reviewedCC BY 4.0Chemphyschem

Synthesis and Photoacoustic Characterization of Amphiphilic Ni(II) Phthalocyanines as Calorimetric References

  • Sidharth Thulaseedharan Nair Sailaja1,2
  • Niek M. M. Aarts1,2
  • Iván Maisuls1,2
  • Alexander Hepp1
  • Andreas Faust3,4
  • Cristian A. Strassert1,2
4 affiliations
  1. 1Institut für Anorganische und Analytische Chemie Universität Münster Münster Germany
  2. 2CeNTech, SoN, CiMIC, Universität Münster Münster Germany
  3. 3European Institute for Molecular Imaging Münster Germany
  4. 4Department of Nuclear Medicine University Hospital Münster Münster Germany
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Abstract

This work describes the synthesis and photophysical characterization of a series comprised by four nonionic yet amphiphilic octa‐substituted Ni(II) phthalocyanines (NiPc) with peripheral or proximal decoration. The combination of MALDI–TOF mass spectrometry, 1H‐NMR, 13C‐NMR, and UV–vis spectroscopy enabled an unambiguous structural elucidation. Notably, these NiPcs are soluble in both polar organic solvents and aqueous media. Since these complexes exhibit near‐infrared absorption (λ max = 650–800 nm), are non‐emissive, and display remarkable chemical stability, a new experimental setup was developed to investigate their photoacoustic efficiency by combining transient absorption spectroscopy and laser‐induced photoacoustic calorimetry. This approach revealed that all complexes are equally suited and stable as photoacoustic references in both aqueous and organic media.

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Cite

BibTeXRIS
BibTeX
@article{sailaja2026synthesis,
  title = {{Synthesis and Photoacoustic Characterization of Amphiphilic Ni(II) Phthalocyanines as Calorimetric References}},
  author = {Sidharth Thulaseedharan Nair Sailaja and Niek M. M. Aarts and Iván Maisuls and Alexander Hepp and Andreas Faust and Cristian A. Strassert},
  journal = {Chemphyschem},
  year = {2026},
  month = nov,
  doi = {10.1002/cphc.70561},
  url = {https://doi.org/10.1002/cphc.70561},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Synthesis and Photoacoustic Characterization of Amphiphilic Ni(II) Phthalocyanines as Calorimetric References
AU  - Sidharth Thulaseedharan Nair Sailaja
AU  - Niek M. M. Aarts
AU  - Iván Maisuls
AU  - Alexander Hepp
AU  - Andreas Faust
AU  - Cristian A. Strassert
PY  - 2026
DA  - 2026/11/05
JO  - Chemphyschem
DO  - 10.1002/cphc.70561
UR  - https://doi.org/10.1002/cphc.70561
AB  - This work describes the synthesis and photophysical characterization of a series comprised by four nonionic yet amphiphilic octa‐substituted Ni(II) phthalocyanines (NiPc) with peripheral or proximal decoration. The combination of MALDI–TOF mass spectrometry, 1H‐NMR, 13C‐NMR, and UV–vis spectroscopy enabled an unambiguous structural elucidation. Notably, these NiPcs are soluble in both polar organic solvents and aqueous media. Since these complexes exhibit near‐infrared absorption (λ max = 650–800 nm), are non‐emissive, and display remarkable chemical stability, a new experimental setup was developed to investigate their photoacoustic efficiency by combining transient absorption spectroscopy and laser‐induced photoacoustic calorimetry. This approach revealed that all complexes are equally suited and stable as photoacoustic references in both aqueous and organic media.
SN  - 1439-4235
SN  - 1439-7641
ER  -