Synthesis, Isolation and Characterization of Chlorofullerenes

会议地点:中国天津[英文文摘]Chlorofullerenes are valuable reactants for further derivation. The fullerenes chlorides synthesized so far are considerably less than those of bromides and fluorides. To date, only C60Cl6 can be macroscopically synthesized. Here we report a facile synthesis of Ih-C60Cl8 and Ih-C60Cl10, as well as their separation and analyses

High LUMO energy level C60(OCH3)4 derivatives:Electronic acceptors for photovoltaiccellswithhigheropen-circuitvoltage

E-mail Addresses: [email protected] regioselective C-60(OCH3)(4) derivatives, C-60(OCH3)(4)-PCBM (a methanofullerene derivative of C-60(OCH3)(4), PCBM=[6,6]-phenyl-C-61-butyric acid methyl ester) and C-60(OCH3)(4)-APCBM (an aziridinofullerene derivative of C-60(OCH3)(4)) were synthesized from C60Cl6 and used as acceptor for polymer solar cells. Revealed by cyclic voltammetry, the LUMO energy levels of C-60(OCH3)4-APCBM and C-60(OCH3)(4)-PCBM are 0.2 and 0.3 eV higher than that of PCBM, respectively. For the polymer photovoltaic cells with fullerene (PCBM, C-60(OCH3)(4)-APCBM or C-60(OCH3)(4)-PCBM) acceptor in combination with poly(3-hexylthiophene) (P3HT) donor, the open-circuit voltage is increased from 0.58 V (for PCBM) to 0.63 V (for C-60(OCH3)(4)-APCBm) and 0.72 V (for C-60(OCH3)(4)-PCBM). The higher open-circuit voltages are reasonably attributed to the higher LUMO levels of the C-60(OCH3)(4) derivatives because of four electron-donating methoxy groups attached. The photovoltaic performance of C-60(OCH3)(4)-PCBMbased device is higher than that involving C-60(OCH3)(4)-APCBM, largely due to the structural changeability of C-60(OCH3)(4)-APCBM resulting from the rotatable N-C bond bridge therein. This work demonstrates that fullerene derivatives with higher LUMO level can be functionalized from multiaddition of electron-donating groups, and exemplifies that photovoltaic performances of fullerene-based solar cells are sensitive even to trivial bridge between functional group and fullerene core. (C) 2012 Elsevier B.V. All rights reserved .National Nature Science Foundation of China U1205111 21031004 21021061 J1210014 20923004 National Basic Research 973 Program of China 2011CB93590

C72Cl4: A Pristine Fullerene with Favorable Pentagon-Adjacent Structure

通讯作者地址: Xie, SY (通讯作者), Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China 地址: 1. Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China 2. Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R ChinaA long-sought empty non-IPR fullerene, C-#11188(72), which is more stable than the sole IPR isomer in the fullerene[72] family, has been retrieved and crystallographically characterized as (C72Cl4)-C-#11188. Mass spectrometric data support the facile dechlorination of (C72Cl4)-C-#11188 and, in turn, the possible stability of pristine C-#11188(72).NNSF of China 21031004,20721001 ,20525103 973 Program 2007CB815301,2011CB935901 NFFTBS J103041

From Graphene Sheets to Boron Nitride Nanotubes via a Carbon-Thermal Substitution Reaction

通讯作者地址: Xie,SY(通讯作者),Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, 422 Si Ming Rd, Xiamen 361005, Peoples R ChinaNSFC,21031004,21021061,973 Projects 2007CB815301 2011CB93590

Honeycomb-Patterned Hybrid Films and Their Template Applications via A Tunable Amphiphilic Block Polymer/Inorganic Precursor System

通讯作者地址: Li,L(通讯作者),Xiamen Univ,Coll Mat, Xiamen 361005, Peoples R China 地址: 1. Xiamen Univ, Coll Mat, Xiamen 361005, Peoples R China 2. Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China 3. Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China 电子邮件地址: [email protected], we show a facile and versatile method-prepare highly ordered inorganic patterns on solid substrates by pyrolyzing UV cross-linked polymr/functional. precursor hybrid films. The crosslinked polymer matrix acted as structure-directing agent in a pyrolyzing process, whereas the functional precursor was converted into the skeleton of the micropatterns. The inorganic micropatterns could be further catalytically functionalized to grow CNT and ZnO nanorod arrays by simply changing different functional precursors. This simple technique offers new prospects in the field of micropatterns, nanolithography, and template.National Natural Science Foundation of China,50703032,20974089;Natural Science Foundation of Fujian Province,2009J06029; Ministry of Education of Chin

Retrieving the Most Prevalent Small Fullerene C(56)

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: [email protected] of China,20721001 ,21031004 973 Program 2007CB815301 2011CB93590

胰高血糖素样肽-1及其类似物的生物学活性测定方法

胰高血糖素样肽-1（GLP-1）因其独特的生理功能成为治疗2型糖尿病最有潜力的药物之一,有很好的开发前景。本文对GLP-1及其类似物的生物学活性,如稳定性、免疫学活性、体外和体内生物学活性的测定方法进行了综述,为GLP-1及其类似物的应用开发研究提供参考

胰高血糖素样肽-1及其类似物的生物学活性测定方法

胰高血糖素样肽-1（GLP-1）因其独特的生理功能成为治疗2型糖尿病最有潜力的药物之一,有很好的开发前景。本文对GLP-1及其类似物的生物学活性,如稳定性、免疫学活性、体外和体内生物学活性的测定方法进行了综述,为GLP-1及其类似物的应用开发研究提供参考

胰高血糖素样肽-1及其类似物的生物学活性测定方法

胰高血糖素样肽-1(GLP-1)因其独特的生理功能成为治疗2型糖尿病最有潜力的药物之一,有很好的开发前景。本文对GLP-1及其类似物的生物学活性,如稳定性、免疫学活性、体外和体内生物学活性的测定方法进行了综述,为GLP-1及其类似物的应用开发研究提供参考

一种ZSM-35分子筛的制备方法

一种小晶粒ZSM-35分子筛的合成方法，所得到样品为直径小于 600nm、厚度小于100nm的层状晶体。所使用的模板剂为环己胺；该方法以硅源、铝源、碱源、环己胺和去离子水为反应原料，在140～190℃ 下，晶化一定时间，直至反应完全，水热合成出所需要的分子筛；其特征在于所说反应原料中可加入有机添加剂，所说有机添加剂为十二烷基苯磺酸钠、聚乙二醇类表面活性剂、或者它们的混合物，加入的添加剂与所说反应原料中氧化铝的分子比为0.01～3.5。带填