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Publications (5)0 Total impact

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    01/2008;
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    ABSTRACT: 通讯作者地址: Xie, SY (通讯作者), Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 地址: 1. Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 2. Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 电子邮件地址: syxie@xmu.edu.cn One abiding surprise in fullerene science is that I-h-symmetric buckminsterfullerene C-60 (ref. 1) (I-h-C-60 or C-#1,812(60), the nomenclature specified by symmetry or by Fowler's spiral algorithm(2)) remains the sole C-60 species experimentally available. Setting it apart from the other 1,811 topological isomers (isobuckminsterfullerenes) is its exclusive conformity with the isolated-pentagon rule(3), which states that stable fullerenes have isolated pentagons. Although gas-phase existence of isobuckminsterfullerenes has long been suspected(4-7), synthetic efforts have yet to yield successful results. Here, we report the realization of two isobuckminsterfullerenes by means of chlorination of the respective C-2v-and C-s-symmetric C-60 cages. These chlorinated species, (C60Cl8)-C-#1,809(1) and (C60Cl12)-C-#1,804(2), were isolated in experimentally useful yields. Structural characterization by crystallography unambiguously established the unique pentagon-pentagon ring fusions. These distinct structural features are directly responsible for the regioselectivity observed in subsequent substitution of chlorines, and also render these unprecedented derivatives of C60 isomers important for resolving the long-standing puzzle of fullerene formation by the Stone-Wales transformation scheme(8-11). NNSF of China,20525103 ,20531050 ,20721001 , 20571062 ,20425312 973 Program 2007CB815301
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    ABSTRACT: 申请号:200810070717.8 申请日:2008.03.07 名称:C60异构体的氯化物及其衍生物和合成与分离方法 公 开(公告)号:CN101274756公开(公告)日:2008.10.01 主分类号:C01B31/02(2006.01)I 分案原申请号: 分类号:C01B31/02(2006.01)I 申请(专利权)人:厦门大学 地 址:361005福建省厦门市思明南路422号 发 明 (设计)人:谢素原;黄荣彬;韩 晓;谭元植;廖照江;钱卓真;梁 华;陈睿婷;朱 峰;高志勇;郑兰荪 专利 代理 机构:厦门南强之路专利事务所 代理人:马应森 C60异构体的氯化物及其衍生物和合成与分离方法,涉及C60异构体。提供两种C60异构体的氯化物#1809C60Cl8和#1804C60Cl12,C60异构体的氯化物#1809C60Cl8的衍生物#1809C60Cl4(C6H5)4 和#1809C60(OCH3)8,C60异构体的氯化物#1804C60Cl12的衍生物#1804C60(OCH3)12;以及两种C60 异构体的氯化物#1809C60Cl8和#1804C60Cl12的合成与分离方法,C60异构体的氯化物#1809C60Cl8 的衍生物#1809C60Cl4(C6H5)4的合成方法,C60异构体的氯化物#1809C60Cl8的衍生物#1809C60 (OCH3)8的合成方法,C60异构体的氯化物#1804C60Cl12的衍生物#1804C60(OCH3)12的合成方法。
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    ABSTRACT: 申请号:200810070685申请日:2008/02/29 公开日:2008/08/06 公告日:2009/11/04 公开号:101234761 公告号:100556803 授权日:2009-11-4 授权公告日:2009-11-4 专利类别: 发明 国别省市代码: 92[中国|厦门] 代理机构代码: 35200[对照表] 代理人: 马应森 含相邻五元环富勒烯的合成方法,涉及一种富勒烯。提供一种含相邻五元环富勒烯的合成方法。对石墨阳极进行挖孔填充石墨粉后,抽真空,向已抽真空的腔体内充入He气,对腔体内痕量的残留气体进行置换,再抽真空,直至真空度达到机械泵的极限,置换完毕后关闭腔体与机械泵之间的真空阀;向石墨电弧放电装置腔体内充入氯源,再充入He气;开通冷却水;打开电焊机电源,调节电流至10~40A;旋进石墨阳极接近石墨阴极,当观察到弧光时,拉开石墨阳极或石墨阴极,调节电流大于40A;待石墨阳极反应完后冷却,关闭冷却水,然后向腔体中放入气体,反应时间至少5min;收集碳灰,即得目标产物。
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    ABSTRACT: Pure non-IPR (isolated-pentagon-rule) C-60 isomer has rarely been investigated experimentally. The recently reported availability of (C60Cl8)-C-#1809 opens an avenue for experimental investigation of C-#18098(60), a C-2v-symmetric C-60 isomer having two pairs of fused pentagons. Herein, the experiments on C-#1809(60) were performed oil the basis of thermal dechlorination of (C60Cl8)-C-#1809 in the solid state and gas phase. (C60Cl6)-C-#1812 was employed for comparative study. As determined by Raman and other methods, C-#1809(60) from thermal decomposition of (C60Cl8)-C-#1809 crystals readily coalesces to form carbon solid with a collapsed crystal lattice. In contrast, dechlorination via thermal spray of (C60Cl8)-C-#1809 in the gas phase is feasible for investigation of monodispersed all-carbon C-60 isomer, because the existence of C-#1809(60) in the gas phase has been confirmed by experimental evidence from mass spectrometry and high-perfomance-liquid-chromatography. National Natural Science Foundation of China 20525103,20531050,20721001 973 Program,2007CB815301