Die Moglichkeit, Chromophore, die nur im Vakuum-UV absorbieren, bei 185 nm direkt anzuregen, hat im letzten Jahrzehnt zur Belebung dieses Teilgebiets der Photochemie gefuhrt. Wahrend Reaktionen in der Gasphase bei λ 220 nm) treten bei 185-nm-Bestrahlung bevorzugt intramolekulare Umlagerungen, Spaltungen und Isomerisierungen auf, wahrend intermolekulare Radikalkupplungen und -abstraktionen sowie Dimerisierungen (π,π*-Anregung) nur geringugig konkurrieren. Neben der leicht moglichen Denitrogenierung photoresistenter („reluctant”) Azoalkane zeichnen sich wichtige Anwendungsgebiete der kurzwelligen Photolyse auch in der Technik (Photolithographie) und der Medizin (193-nm-Laser) ab. Die Erweiterung des Synthesepotentials der 185-nm-Photochemie - bisher auf direkte cis/trans-Isomerisierungen beschrankt -, ist eine Herausforderung fur den Chemiker.

185-nm-Photochemie von Olefinen, gespannten Kohlenwasserstoffen und Azoalkanen in Lösung†

Time-resolved electron paramagnetic resonance spectroscopy is used to probe energy transfer from aromatic photoexcited triplet states to azo compounds in liquid solution. The observation of chemically induced dynamic electron spin polarization in the spectra gives precise information regarding the spin physics and mechanism of the energy transfer process. The substrate size is varied by altering the chain length of alkyl chains covalently attached to the azo compounds via ester or amide linkages. The solvent dependence of the energy transfer process is also investigated. The results are discussed in terms of Dexter and Forster mechanisms for energy transfer, the properties of the excited states, and the diffusive properties of the molecules in the solvents of interest. Decomposition rate studies and fluorescence measurements are also reported.

Chemically induced dynamic electron spin polarization-detected energy transfer. Substrate size effects and solvent dependence.

Electronic Structures of the Azo, Azoxy and Hydrazo Groups

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

M. B. Robin

Author Tools

Chat about Author

Papers

Electronic Structures of the Azo, Azoxy and Hydrazo Groups