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Bis-silylation of Lu3N@I(h)-C80: considerable variation in the electronic structures
Kumiko Sato1, Masahiro Kako, Naomi Mizorogi
1Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, lbaraki 305-8577, Japan.
Abstract:
Photochemical reactions of Lu(3)N@I(h)-C(80) with disiliranes 1 and 2 produce several isomeric adducts. Spectroscopic analyses characterize the most stable isomers as 1,4(AA) adducts, which consist of paired twist conformers at rt. The electrochemical and theoretical studies reveal that the HOMO-LUMO energy gaps of the 1,4(AA) adducts are smaller than that of Lu(3)N@I(h)-C(80) because the electron-donating groups effectively raise the HOMO levels.
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