Coupling Reactions Between sp2 and sp Carbon Centers. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Pergamon: London, 1991; Vol. 3, p 521.K. Sonogashira, in: K. Sonogashira (Ed.), Coupling Reactions Between sp2 and sp Carbon Centers, vol. 3, Pergamon Press, ...
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...
Tunable hybrid sp3 and sp2 carbon composition and pore structures stem from the structure transformation of ionic liquids to polymerized organics and introduction of Co metal salt. Through tuning both composition and pores, the 3D Nヾoped nanocarbon with a high ratio of sp3/sp2 on the surface ...
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 ...
sp2- and sp3-hybridized carbon materials as catalysts for aerobic oxidation of cyclohexaneThe catalytic properties of sp~2-and sp~3-hybridizCao, Y.Luo, X.Yu, H.Peng, F.Wang, H.Ning, G.CATALYSIS SCIENCE AND TECHNOLOGY -CAMBRIDGE-Cao Yonghai, Luo Xianyu, Yu Hao, Peng Feng, Wang Hong...
X-RAY DIFFRACTION USED TO MEASURE LEVELS OF SP~2 AND SP~3 CARBON IN FOSSIL FUELS: A MICROCOSM OF THE 1990'S, WORKING HARDER AND GETTING LESS The proposition that a diffraction peak can be "far too intense to be caused by amorphous scattering and far too broad to be caused by ...
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,...
Oxidative allylation to sp2- and sp3-carbon attached to the nitrogen atom was accomplished. The α-allylation of tertiary amines was catalyzed by easily available hydrated iron(III) chloride in combination with air or aqueous tBuOOH. Remarkably, N-allyl- and N-propagyl-tethered tertiary amines we...
The catalytic cycle includes three elementary steps: the proton transfer from the substrate to a rhodium hydroxide, the C-C cleavage, and the proton transfer from water onto a carbon forming the final product with regeneration of the rhodium hydroxide. The site selectivity is determined by the C...
Evaluation of the sp2 / sp3 ratio in amorphous and XAES carbon structure by XPS R Giorgi 被引量: 0发表: 1991年 Determination of the sp3/sp2 ratio of a-C:H by XPS and XAES X-ray photoelectron spectroscopy and X-ray excited Auger electron spectroscopy were used to determine some of the...