D2d(23)-C84 versus Sc2C2@D2d(23)-C84: Impact of Endohedral Sc2C2 Doping on Chemical Reactivity in the Photolysis of Diazirine.
作者： Michio Yamada , Yukiko Tanabe , Jing-Shuang Dang , Satoru Sato , Naomi Mizorogi
DOI: 10.1021/JACS.6B10751
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摘要: We compared the chemical reactivity of D2d(23)-C84 and that Sc2C2@D2d(23)-C84, both having same carbon cage geometry, in photolysis 2-adamantane-2,3′-[3H]-diazirine, to clarify metal-atom doping effects on cage. Experimental computational studies have revealed is altered drastically by endohedral Sc2C2 doping. The reaction empty with diazirine under photoirradiation yields two adamantylidene (Ad) adducts. NMR spectroscopic major Ad monoadduct (C84(Ad)-A) has a fulleroid structure minor (C84(Ad)-B) methanofullerene structure. latter was also characterized using X-ray crystallography. C84(Ad)-A stable photoirradiation, but it interconverted C84(Ad)-B heating at 80 °C. In contrast, Sc2C2@D2d(23)-C84 affords four monoadducts (Sc2C2@C...
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