AI Article Synopsis
Article Abstract
The chemical nature of the organic cations governs the optoelectronic properties of two-dimensional organic-inorganic perovskites. But its mechanism is not fully understood. Here, we apply femtosecond broadband sum frequency generation vibrational spectroscopy to investigate the molecular conformation of spacer organic cations in two-dimensional organic-inorganic perovskite films and establish a correlation among the conformation of the organic cations, the charge carrier mobility, and broadband emission. Our study indicates that both the mobility and broadband emission show strong dependence on the molecular conformational order of organic cations. The gauche defect and local chain distortion of organic cations are the structural origin of the in-plane mobility reduction and broad emission in two-dimensional organic-inorganic perovskites. Both of the interlayer distance and the conformational order of the organic cations affect the out-of-plane mobility. This work provides molecular-level understanding of the conformation of organic cations in optimizing the optoelectronic properties of two-dimensional organic-inorganic perovskites.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7603336 | PMC |
| http://dx.doi.org/10.1038/s41467-020-19330-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The "specific" P-glycoprotein inhibitor zosuquidar (LY335979) also weakly inhibits human organic cation transporters.
Naunyn Schmiedebergs Arch Pharmacol
December 2024
Internal Medicine IX - Department of Clinical Pharmacology and Pharmacoepidemiology, Heidelberg University, Medical Faculty Heidelberg, Heidelberg University Hospital, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.
Zosuquidar (LY335979) is a widely used experimental P-glycoprotein (P-gp) inhibitor, which is commended as very potent but also as very specific for P-gp. In this in vitro and in silico study, we demonstrated for the first time that zosuquidar also inhibits organic cation transporters (OCT) 1-3, albeit less potently than P-gp. This still has to be kept in mind when zosuquidar is used to inhibit cellular efflux of P-gp substrates that are concurrently transported into the cells by OCTs.
View Article and Find Full Text PDFMerging and Clipping Nets for the Synthesis of Three- and Two-Merged Net Metal-Organic Frameworks.
J Am Chem Soc
December 2024
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, Barcelona 08193, Spain.
Herein, we report how merging and clipping nets in metal-organic frameworks (MOFs) can be controlled in a single-crystal-to-single-crystal fashion using three different approaches─the merged net, clip-off chemistry, and linker reinstallation─to design and synthesize three- and two-merged net MOFs. Initially, we show the formation of three isoreticular three-merged net MOFs by linking a trimeric Sc cluster, Sc(μ-Ο)(-COO), with ditopic zigzag and tritopic linkers. The resulting MOFs exhibit three-merged edge-transitive nets─ + + ─for the first time.
View Article and Find Full Text PDF"On Water" Cationic Ruthenium(II) Catalysed Direct Aryl C(sp2)-H Amidation of Biorelevant Heterocyclic Scaffolds.
Chem Asian J
December 2024
National Institute of Pharmaceutical Education and Research, Medicinal Chemistry, Sector 67, 160062, S. A. S. Nagar, INDIA.
Ru(II)-Catalyzed "On Water" direct aryl C(sp2)-H amidation of 2-arylbenzo[d]-thiazole/oxazole with acyl azide is reported under silver-free condition. Deuterium scrambling experiments suggested reversible C-H activation catalyzed by active cationic ruthenium species. The organic solvents such as DCE, DMF, DMSO, MeCN, dioxane, and PhMe were not conducive for the C-H amidation except for PhCl in which case, however, inferior yield (31%) was obtained.
View Article and Find Full Text PDFImpact of Double-π-Bridge on Bis(triarylamine)-Based Organic Mixed-Valence System: A Case Study of Diaza[1.1](4,4")ortho-terphenylophane Radical Cation.
Chemistry
December 2024
Kyoto University: Kyoto Daigaku, Department of Molecular Engineering, JAPAN.
A bis(triarylamine) (BTA) radical cation, bridged by two o-terphenylene moieties, was prepared and characterized to explore the impact of the double-π-bridge on the intramolecular charge/spin transfer process in the 2-site organic mixed-valence (MV) compound. Spectroscopic analyses on optically and thermally assisted intervalence charge-transfer (IVCT) processes revealed that the doubly π-bridging enhanced the charge delocalization between two nitrogen redox-active centers, whereas the electronic coupling was not so strengthened, in comparison with the singly π-bridging reference compound.
View Article and Find Full Text PDFChemically Robust Cationic Porous Organic Polymer (POP) for Selective Detection and Removal of ReO4- as a Surrogate of Radioactive 99TcO4.
Chemistry
December 2024
IISER Pune, Chemistry, IISER PUNE , HOMIBHABA ROAD, NCL COLONY, 411008, PUNE, INDIA.
The efficient removal of 99TcO4- from alkaline nuclear waste is vital for optimizing nuclear waste management and safeguarding the environment. However, current state-of-the-art sorbent materials are constrained by their inability to simultaneously achieve high alkali resistance, rapid adsorption kinetics, large adsorption capacity, and selectivity. In this study, we synthesized a urea-rich cationic porous organic polymer, IPM-403, which demonstrates exceptional chemical stability, ultrafast kinetics (~92% removal within 30 seconds), high adsorption capacity (664 mg/g), excellent selectivity, along with multiple-cycle recyclability (up to 7 cycles), making it highly promising for the removal of ReO4- (surrogate of 99TcO4-) from nuclear wastewater.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!