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| Pàgina inicial > Articles > Articles publicats > Fluorescent molecular systems based on carborane-perylenediimide conjugates |
| Data: | 2024 |
| Descripció: | 11 pàg. |
| Resum: | This study presents the successful synthesis of two perylenediimide (PDI)-based ortho-carborane (o-carborane) derivatives, PDI-CB1 and PDI-CB2, through the insertion of decaborane into alkyne-terminated PDIs (PDI1 and PDI2). The introduction of o-carborane groups did not alter the optical properties of the PDI units in solution compared to their carborane-free counterparts, maintaining excellent fluorescence quantum yields of around 100% in various solvents. This was achieved by using a methylene linker to minimize electronic interaction between PDI and o-carborane, and by incorporating bulky o-carborane groups at imide- position to enhance solubility and prevent π-π stacking-induced aggregation. Aggregation studies demonstrated that PDI-CB1 and PDI-CB2 have greater solubility than PDI1 and PDI2 in both nonpolar and aqueous solvents. Despite the steric hindrance imparted by the o-carborane units, the solid state emission of PDI-CB1 and PDI-CB2 was affected by aggregation-caused fluorescence quenching. However, solid PDI-CB1 preserved bright red excimer-type emission, which persisted in water-dispersible nanoparticles, indicating potential for application as a theranostic agent combining fluorescence bioimaging with anticancer boron neutron capture therapy (BNCT) due to its high boron content. |
| Ajuts: | Agencia Estatal de Investigación PID2022-141293OB-I00 Agencia Estatal de Investigación PID2022-136892NB-I00 Ministerio de Ciencia, Innovación y Universidades CEX2023-001263-S Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00064 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00442 European Commission 754397 |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Publicat a: | Dalton transactions, Vol. 53, Issue 44 (October 2024) , p. 17841-17851, ISSN 1477-9234 |
11 p, 1.8 MB |