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C_(60)^(2-)单态的Jahn-Teller畸变和光谱性质 被引量:2
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作者 滕启文 封继康 +1 位作者 魏家友 孙家钟 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 1995年第2期265-269,共5页
用INDO系列方法,对C单态进行几何构型优化,得到3种不同对称性的构型:D5d、D3d、D2h。表明C已发生Jahn-Teller畸变,D5d有4种原子7种键;D3d有6种原子10种键;D2h有9种原子15种键。额外... 用INDO系列方法,对C单态进行几何构型优化,得到3种不同对称性的构型:D5d、D3d、D2h。表明C已发生Jahn-Teller畸变,D5d有4种原子7种键;D3d有6种原子10种键;D2h有9种原子15种键。额外负电荷主要分布在赤道附近。以这3种构型为基础分别计算了C单态的电子光谱,说明C的基态应该是三态。 展开更多
关键词 J-T畸变 电子吸收光谱 60
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Active Oxygen Radical Scavenging Ability of Water-Soluble β-Alanine C_(60) Adducts 被引量:1
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作者 Tao SUN Zhi Shen JIA +2 位作者 Wei Xiang CHEN Ya Xu JIN Zhu De XU 《Chinese Chemical Letters》 SCIE CAS CSCD 2001年第11期997-1000,共4页
Water-soluble b-alanine C60 adducts were synthesized, and the scavenging ability to superoxygen anion radical O2- and hydroxyl radical.OH were studied by autoxidation of pyrogallol and chemiluminescence, respectively.... Water-soluble b-alanine C60 adducts were synthesized, and the scavenging ability to superoxygen anion radical O2- and hydroxyl radical.OH were studied by autoxidation of pyrogallol and chemiluminescence, respectively. It was found thatβ-alanine C60 adducts showed an excellent efficiency in eliminating superoxygen anion radical and hydroxyl radical. The 50% inhibition concentration (IC50) for superoxygen anion radical and hydroxyl radical were 0.15 mg/mL and 0.048 mg/mL, respectively. The difference should be mainly attributed to the different scavenging mechanisms. 展开更多
关键词 b-alanine c_(60) adducts superoxygen anion radical O_(2)^(.-) hydroxyl radical autoxidation of pyrogallol chemiluminescence.
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