Organometallics
Organometallics
5 years ago

Studies on Spherically Distributed LUMO and Electron-Accepting Properties of Caged Hexakis(germasesquioxanes)

Studies on Spherically Distributed LUMO and Electron-Accepting Properties of Caged Hexakis(germasesquioxanes)
Yohei Adachi, Toshiyuki Tsuchida, Yutaka Harima, Yousuke Ooyama, Joji Ohshita, Kazuyoshi Tanaka, Kenji Komaguchi, Kazuki Yamamoto
When the caged germasesquioxanes hexakis(cyclohexylgermasesquioxane) and hexakis(n-octylgermasesquioxane) (GT6Cy and GT6Oc) were irradiated with γ-rays in 2-methyltetrahydrofuran (2-MTHF) glass matrices at 77 K, anisotropic ESR signals ascribed to their radical anions were observed. DFT calculations of a model radical anion, [hexakis(methylgermasilsesquioxane)]− (GT6Me–), indicated unsymmetrical distribution of the SOMO (singly occupied molecular orbital), in agreement with the anisotropy of the ESR signals. To better understand the electronic states of the caged germasesquioxanes, hexakis(dimethylaminophenylgermasesquioxane) (GT6An) was prepared and its photoluminescence (PL) properties were investigated. Interestingly, the PL efficiency of GT6An was much lower than that of dimethylaniline itself, likely because of the electron transfer from the photoexcited dimethylaniline unit to the germasesquioxane cage.

Publisher URL: http://dx.doi.org/10.1021/acs.organomet.6b00950

DOI: 10.1021/acs.organomet.6b00950

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.