When the caged germasesquioxanes hexakis-(cyclohexylgermasesquioxane) and hexakis(n-octylgermasesquioxane) (GT(6)Cy and GT(6)Oc) were irradiated with gamma-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)](-) (GT(6)Me(-)), 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) (GT(6)An) was prepared and its photoluminescence (PL) properties were investigated. Interestingly, the PL efficiency of GT(6)An was much lower than that of dimethylaniline itself, likely because of the electron transfer from the photoexcited dimethylaniline unit to the germasesquioxane cage.
DOI:
10.1021/acs.organomet.6b00950
作为产物:
描述:
alkaline earth salt of/the/ methylsulfuric acid 、 alkaline earth salt of/the/ methylsulfuric acid 生成 n-octyltrichlorogermane
参考文献:
名称:
Satge et al., Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1959, vol. 249, p. 131,132