165550-62-9Relevant articles and documents
A lysosome-specific near-infrared fluorescent probe for: In vitro cancer cell detection and non-invasive in vivo imaging
Mengji, Rakesh,Acharya, Chiranjit,Vangala, Venugopal,Jana, Avijit
, p. 14182 - 14185 (2019)
Near-infrared (NIR) fluorescent probes have been developed as potential bio-materials having profound applications in diagnosis and clinical practice. Herein, we wish to disclose a highly photostable ultra-bright NIR probe for the specific detection of lysosomes in numerous cell lines. Furthermore, the applicability of the developed NIR probe was evaluated for in vivo imaging.
Viable access to the triplet excited state in peryleneimide based palladium complex §
Philip, Abbey M,Sebastian, Ebin,Gopan, Gopika,Ramakrishnan, Remya,Hariharan, Mahesh
, (2018/10/02)
Abstract: Triplet excited state in organic chromophores is ubiquitously significant owing to its utility in light harvesting and photovoltaic device applications. Herein, we report the enhancement in the triplet character of an innately triplet deficient peryleneimide chromophore via incorporation of a heavy atom. Palladium incorporated perylenemonoimide (PMI-Pd) was synthesized via oxidative addition of PMI-Br into Pd(0) under inert experimental conditions. The structural sanctity of the PMI-Pd and the model derivative PMI was characterized via single crystal X-ray diffraction and the close-packing was examined employing Hirshfeld surface analysis. The steady-state spectroscopic measurements of PMI-Pd in chloroform reveal an apparent perturbation in the UV-Vis absorption, fluorescence emission and lifetime characteristics. A much higher perturbation is observed in the ultrafast photoexcited processes of PMI-Pd in chloroform as envisaged via nanosecond transient absorption (nTA) measurements. The nTA measurements of PMI-Pd in chloroform reveal a significant enhancement in the triplet character of PMI-Pd as compared to the model derivative PMI. Spin-orbit coupling (SOC) mediated triplet enhancement in PMI-Pd suggest heavy atom incorporation as a viable route for accessing the triplet excited states in triplet deficient aromatic chromophores. SOC mediated triplet enhancement in innately triplet deficient organic chromophores can revive the utility of these materials for novel photovoltaic and energy storage applications. Graphical abstract: SYNOPSIS Synthesis and characterization of a perylenemonoimide palladium(II) complex (PMI-Pd) and the enhancement in the triplet excited state of PMI-Pd as compared to PMI are explored. The results suggest that the combined spin-orbit coupling mediated by the incorporation of palladium and bromine atoms results in the enhancement of the triplet character in PMI-Pd. [Figure not available: see fulltext.].
Synthesis of an Acceptor-Donor-Acceptor Multichromophore Consisting of Terrylene and Perylene Diimides for Multistep Energy Transfer Studies
Stappert, Sebastian,Li, Chen,Müllen, Klaus,Basché, Thomas
, p. 906 - 914 (2016/02/19)
Motivated by the results obtained from the investigation of singlet-singlet annihilation in a linear multichromophore comprising terrylene diimides (TDI) and perylene diimide (PDI) in 2010, we report the detailed process toward the successful synthesis of a TDI-PDI-TDI dyad. Ineffective synthetic pathways, which were necessary for the understanding of the step-by-step construction of the complex multichromophore, are described, leading toward a universal synthetic plan for multicomponent systems containing rylene diimides separated by rigid oligophenylene spacers.