Academic Journal
Synthetic, structural, and spectroscopic studies of bis(porphyrinzinc) complexes linked by two-atom conjugating bridges
| العنوان: | Synthetic, structural, and spectroscopic studies of bis(porphyrinzinc) complexes linked by two-atom conjugating bridges |
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| المؤلفون: | Harper, Shannon R., Pfrunder, Michael C., Esdaile, Louisa J., Jensen, Paul, McMurtrie, John C., Arnold, Dennis P. |
| بيانات النشر: | Wiley - VCH |
| سنة النشر: | 2015 |
| المجموعة: | The University of Queensland: UQ eSpace |
| مصطلحات موضوعية: | Peripherally-Metalated Porphyrins, Density-Functional Theory, Crystal-Structure, 2-Photon Absorption, Electrochemical Properties, Heck Reaction, Dimers, Diporphyrins, State, Coordination |
| الوصف: | Four Zn-II 5,10,15-triphenylporphyrin (TriPP) complexes meso-meso linked by two-atom bridges, namely, C2H2 (2), C-2 (3), CH= N (4), and N-2 (5), were prepared, for comparison of ground-state inter-porphyrin conjugation. The X-ray crystal structure of azoporphyrin 5 center dot py(2) (py = pyridine) was determined: it exhibits a stepped-offset shape and a porphyrin- azo torsion angle of 34.8 degrees. Some new monoporphyrin starting materials were prepared, and ZnTriPPNH(2) (27), ZnTriPPCHO (23), NiTriPPCHO (7), and ZnTriPPCH(2)CH(2)Ph (18), as well as the byproduct butadiyne-linked dimer 26 were characterized by single-crystal X-ray crystallography. The conjugation in the dimers was assessed by electronic absorption and steady-state fluorescence spectroscopy. All show variously split B bands: azoporphyrin 5 clearly has the strongest ground-state inter-porphyrin interactions. Imine 4 and azo 5 show strongly quenched fluorescence emission, which indicates the presence of efficient relaxation pathways afforded by the N-containing linkers. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1434-193X 1099-0690 |
| Relation: | orcid:0000-0002-2270-7141 |
| الاتاحة: | https://espace.library.uq.edu.au/view/UQ:80486db |
| رقم الانضمام: | edsbas.A870287C |
| قاعدة البيانات: | BASE |
| تدمد: | 1434193X 10990690 |
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