A giant porphyrin disc (M(w)= 15 kDa) has been synthesized and its self-assembly behaviour at an interface studied by liquid STM which reveals the presence of huge domains (>400 x 400 nm2) of very well ordered and molecularly resolved columnar stacks.
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http://dx.doi.org/10.1039/b401324g | DOI Listing |
Inorg Chem
September 2024
Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India.
We designed and successfully synthesized highly substituted electron-deficient nonplanar Ni(II) porphyrins and their derivatives () in moderate to good yields. These derivatives were comprehensively characterized by various spectroscopic techniques and single-crystal X-ray diffraction (SCXRD) analysis. SCXRD analysis confirmed the structures of compounds , , and , adopting saddle-shape geometry.
View Article and Find Full Text PDFPhotodiagnosis Photodyn Ther
April 2024
Shanghai Skin Disease Hospital, School of Medicine, Institute of Photomedicine, Tongji University, 1278 Baode Road, Shanghai 200443, China. Electronic address:
Photodynamic therapy (PDT) is proved effective for treating low-grade squamous intraepithelial lesions (LSIL) and condylomata acuminata (CA). 5-Aminolevulinicacid (5-ALA) is the most common applied photosensitizer, but high rate of unbearable pain and relative long incubation time were reported. Here, we report a 27-year-old woman suffering from cervical and vaginal giant CA with LSIL involving the whole right vaginal fornix, cervical surface, and vaginal wall.
View Article and Find Full Text PDFChemistry
March 2024
Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000, Rennes, France.
In the continuation of previous studies on carbon-rich meso-tetraarylporphyrins featuring 2,7-fluorene units at their periphery, the effect of changing the peripheral dendritic arms for linear arms on their oxygen-photosensitizing ability, their fluorescence and their two-photon absorption (2PA) properties is now analyzed. Thus, starburst porphyrins possessing up to twenty conjugated fluorenyl units were isolated and studied. More precisely, a series of five new free-base porphyrins featuring fully conjugated arms incorporating an increasing number of fluorenyl groups connected via 1,2-alkenyl spacers were synthesized, along with their Zn(II) complexes.
View Article and Find Full Text PDFJ Am Chem Soc
September 2023
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou 350002, People's Republic of China.
Introducing an external visible-light field would be a promising strategy to improve the activity of the electrocatalytic CO reduction reaction (CORR), but it still remains a challenge due to the short excited-state lifetime of active sites. Herein, Ru(bpy)Cl struts as powerful photosensitive donors were immobilized into the backbones of Co-porphyrin-based covalent organic frameworks (named Co-Bpy-COF-Ru, is the molar ratio of Ru and Co species, = 1/2 and 2/3) via coordination bonds, for the photo-coupled CORR to produce CO. The optimal Co-Bpy-COF-Ru displays a high CO Faradaic efficiency of 96.
View Article and Find Full Text PDFNano Lett
June 2023
National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
Accelerating the migration of interfacial carriers in a heterojunction is of paramount importance for driving high-performance photoelectric responses. However, the inferior contact area and large resistance at the interface limit the eventual photoelectric performance. Herein, we fabricated an S-scheme heterojunction involving a 2D/2D dual-metalloporphyrin metal-organic framework with metal-center-regulated CuTCPP(Cu)/CuTCPP(Fe) through electrostatic self-assembly.
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