Activation of sp2 and sp3 carbon–hydrogen bonds via thermolysis of bis(η-cyclopentadienyl)hydridomethyltungstenorgano‐tungsten compoundsThe methylhydride [W(η-C5H5)2Me(H)] has been prepared by treatment of the compounds [W(η-C5H5)2MeX], where X = I or OCOPh, with Na[AlH2(OCH2CH2OMe...
为此,哈工大材料学院先进轻合金及纳米功能材料课题组的姜建堂、管振杰等人通过合理的分子结构定制以及选择性结构调控工程在二维碳纳米片中成功构建了sp2-sp3 C-C极性共价键。与常见的碳基吸波材料迥然不同的是,本研究中所制备的sp2-sp3 C-C 杂化二维碳纳米片展现出了极低的电导损耗能力,而sp2-sp3 C-C极性共价键...
为此,哈工大材料学院先进轻合金及纳米功能材料课题组的姜建堂、管振杰等人通过合理的分子结构定制以及选择性结构调控工程在二维碳纳米片中成功构建了sp2-sp3 C-C极性共价键。与常见的碳基吸波材料迥然不同的是,本研究中所制备的sp2-sp3 C-C 杂化二维碳纳米片展现出了极低的电导损耗能力,而sp2-sp3 C-C极性共价键...
以具有C=C双键和咪唑官能团的离子液体为前驱体,通过聚合过程中sp2碳向sp3碳的转化,实现碳前驱体中sp2碳与sp3碳相对含量的控制,然后结合高温热解过程,从而成功地得到sp2碳和sp3碳共存且氮掺杂的三维碳泡沫(CF,Carbon Foam),该三维碳泡沫由薄层的carbon nanosheet组成,表面以sp3碳为主,而且具有微孔和大孔复合的多级...
Tetrahedron 2013, 69, 4473−4478. (c) Shi, J.-L.; Wang, D.; Zhang, X.-S.; Li, X.-L.; Chen, Y.-Q.; Li, Y.-X.; Shi, Z.-J. Oxidative coupling of sp2and sp3carbon−hydrogen bonds to construct dihydrobenzofurans. Nat. Commun. 2017,...
sp2- and sp3-hybridized carbon materials as catalysts for aerobic oxidation of cyclohexaneCATALYSIS SCIENCE AND TECHNOLOGY -CAMBRIDGE-CaoY.LuoX.H.PengF.WangNingG.Cao Yonghai, Luo Xianyu, Yu Hao, Peng Feng, Wang Hongjuan, Ning Guoqing. sp2- and sp3-hybridized carbon materials as catalysts for...
Carbon, sp2‐hybridizedCarbon, sp3‐hybridizedLithographyPatterning, laser‐inducedA new method of laser-induced lithography for direct writing of carbon on a glass surface is described, in which deposition occurs from a transparent precursor solution. At the glass–solution interface where the laser ...
(4):129-281.);利用玻璃碳作为原料在高温高压下合成出一系列性能优异的sp2-sp3杂化的压缩玻璃碳(HuM,HeJ,ZhaoZ,etal.Compressedglassycarbon:Anultrastrongandelasticinterpenetratinggraphenenetwork[J].ScienceAdvances,2017,3(6):e1603213.)以及高sp3杂化的“非晶金刚石”(ZengZ,YangL,ZengQ,etal.Synthesisof...
Because isoelectronic B–C–N compounds can be thought as the alloys of carbon and BN, the possible structures of BCxN are usually derived from the structure of carbon (or BN), with low dense phases of sp2 hybridization or high dense phases of sp3 hybridization. The low dense layered B–...
The metal-catalyzed or -mediated cross-coupling between a carbon nucleophile and carbon electrophile is one of the most important methods for the construction of C鈥揅 bonds. A variety of metals can catalyze this reaction. This chapter covers the most relevant coupling reactions between sp 3 and...